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Flokal    OV140  P/N 9705011    加熱器
Flovex    silver T/OTT 8061-A-4（with plastic covers）  ST3.8061.A40000    熱交換器
FLOVEX S.p.A.    OTT 8061-A-4  Nr: ST3.8061.A40000    加熱器
FLOWGUARD    FG-10-200-FPM-SS-A-1/2 BSP    減壓閥
FLOWSERVE    510SI-15-W2DSG-00F0-000（The built-in language is German）    閥門定位器
FLOWSERVE    S150D 90°    氣壓缸
FLOWSERVE    41-E5N-STD  KM71- IP Transmitter for APEX7000 series    閥門定位器
FLOWSERVE    S125D 90°    氣壓缸
FLOWSERVE    F5GU-MEC420-23-FS9DA-Z    閥門定位控制器
FLOWSERVE    S050M    氣壓缸
FLOWSERVE    NXCLU2M3-19-00200    感應(yīng)傳感器
FLOWSERVE    NH52M 24VDC    油壓傳動閥
FLOWSERVE    Ident Nr.59 41 30C    止回閥
flowtec    KHN7314 DN80 (3")    球閥
flowtec    KHN7314 DN65 (2 1/2")    球閥
flowtec    KHN7314 DN40 (6/4")    球閥
flowtec    KHN7314 DN25 (1")    球閥
flucom    B30-27C-28H    電磁閥線圈
Fluid Automation    10236;05-562MB02-60-24VDC-1,8W 5/2W,DIR,NC,FLANSCH,NW    油壓傳動閥
Fluid Automation Systems GmbH    05-562MB02-60-24VDC-1.8W    油壓傳動閥
FLUID TEAM    3-fach Reihenblock 32/25/32   9423058    油壓傳動閥
FLUID TEAM    ZEPDR3-06-315-1-24V    油壓傳動閥
FLUID TEAM    EEPDRDS3-05-115-4-24V    油壓傳動閥
FLUID TEAM    EEPDRS3-08-210-2-24V    油壓傳動閥
FLUID TEAM    EPDBDGA-05/06-40-1-24V    油壓傳動閥
FLUID-TEAM    EEPDRDM3-05-75-3-12V    油壓傳動閥
FLUID-TEAM    ZEPDR3-06-115-1-24V    油壓傳動閥
FLUID-TEAM    ZEPDR3-06-210-1-24V    油壓傳動閥
FLUID-TEAM    MDFVA-06-SCCA-LWN    油壓傳動閥
FLUID-TEAM    VB-3A    信號放大器
FLUITEN    GLRD-GTED 180 c1zd 72 v2 v2 vee    機(jī)械密封件
Fluitronics    1AR100-P-20S-FJ    油壓傳動閥
FLUITRONICS GMBH    PZ/03-500-3.39/II    

ment torque  T Dis  (approx.
values)
Function system:
Full?disengagement (F)
T Dis
Nm
A
in.lb
Nm
B
in.lb
Nm
C
in.lb
Axial misalignment
Max.
values
mm
Angular misalignment
Max.
values
°
Lateral misalignment
Max.
values
mm
Axial spring stiffness C a N/mm
Lateral spring stiffness C l N/mm
Torsional rigidity C T
Nm/arcmin
in.lb/arc-
min
Moment of inertia J
kgcm 2
in.lb.s 2 .10 -3
Hub material
Max. speed  b) n Max rpm
Bellows material highly flexible stainless steel
Protection element material Hardened steel
Approx. weight m
kg
lb
Max. permitted temperature
°C -30 to +100 (bonded)
-30 to +300
(welded)
F -22 to +212 (bonded)秒報價 Flokal    OV140  P/N 9705011    加熱器
-22 to +572
(welded)
Technical data
b) If you have more stringent requirements, please contact WITTENSTEIN alpha
406
1.5 2 4.5 10 15 30 60 80 150 200 300 500 800 1500
A A B A B A B A B A B A B A B A B A B A B A B A A
42 46 51 57 65 65 74 75 82 87 95 102 112 115 127 116 128 128 140 139 153 163 177 190 223
42 46 51 57 65 65 74 75 82 87 95 102 112 117 129 118 130 131 143 142 156 167 181 201 232
11 13 16 16 22 27 31 35 35 40 42 51 48 67
3.5 4 5 5 6.5 7.5 9.5 11 11 12.5 13 17 18 22.5
6 8 10 15 17 19 23 27 27 31 39 41 2x48 2x55
0.7 0.8 0.8 1.2 1.5 1.5 1.7 1.9 1.9 2.2 2.2 2.2 2.2 3.0
12 13 15 17 19 24 28 31 31 35 35 45 50 63
11.5 12 14 16 19 22 29 31 30 33 35 43 54 61
3 - 9 4-12 5-14 6-20 10-26 12-30 15-32 19-42 19-42 24-45 30-60 35-60 40-75 50-80
23 29 35 45 55 65 73 92 92 99 120 135 152 174
24 32 42 51.5 62 70 83 98 98 117 132 155 177 187
19 25 32 40 49 55 66 81 81 90 110 123 134 157
9.1 12.1 14.1 20.1 21.1 24.1 32.1 36.1 36.1 42.1 58.1 60.1 60.1 68.1
Accessories
Couplings
a)  Tolerance for shaft/hub connection 0.01-0.05 mm.
L 1F  , L 9F  , D 3F = Full disengagement version (F)
Series
Length options
(see order codes)
Overall length L 1 mm
Overall length F L 1F mm
Fit length  a) L 2 mm
Distance L 3 mm
Distance between centers L 4 mm
Actuation path L 8 mm
Distance L 9 mm
Distance (F) L 9F mm
Bore diameter
from???to???H7
D 1/2 mm
Outer diameter of
actuation?ring
D 3 mm
Outer diameter of
actuation?ring F
D 3F mm
Outer diameter of hub D 5 mm
Max. internal diameter D 7 mm
Your benefits:
· Certified disengagement mechanism in the event of overload
· Pre-set disengagement torque
· Compley backlash free
· Fatigue endurable and maintenance free
· Compensation of shaft misalignments
· Small installation space despite protection element
· Radial mounting via clamping screw
Optional:
· Bores with key / involute
· Other designs秒報價 Flokal    OV140  P/N 9705011    加熱器
Dimensions
* Bore for torque adjusting wrench, see Page 403
407
15 30 60 150 200 300 500 800 1500 2500
A B A B A B A B A B A B A B A A A
5-10 10-25 10-30 20-70 30-90 100-200 80-200 400-650 650-850 1500-2000
45-89 89-222 89-266 177-620 266-797 885-1770 708-1770 3540-5753 5753-7523 13275-17700
8-20 20-40 25-80 45-150 60-160 150-240 200-350 500-800 700-1200 2000-2500
71-177 177-354 222-708 399-1328 531-1416 1328-2124 1770-3098 4425-7080 6195-10620 17700-22125
- - - 80-200 140-280 220-400 300-500 600-900 1000-1800 2300-2800
708-1770 1239-2478 1947-3540 2655-4425 5310-7965 8850-15930 20355-24780
7-15 8-20 20-40 20-60 80-140 120-180 60-150 200-400 1000-1250 1400-2200
62-133 71-177 177-354 177-531 708-1239 1062-1593 531-1328 1770-3540 8850-11063 12390-19470
- 16-30 30-60 40-80 130-200 160-300 100-300 450-800 1250-1500 1800-2700
142-266 266-531 354-706 1151-1770 1416-2655 885-2855 3982-7080 11063-13275 15930-23895
- - - 80-150 - - 250-500 - - -
708-1328 2213-4425
1 2 1 2 1.5 2 2 3 2 3 2.5 3.5 2.5 3.5 3.5 3.5 3.5
1 1.5 1 1.5 1 1.5 1 1.5 1.5 2 1.5 2 2 2.5 2.5 2.5 2.5
0.15 0.20 0.20 0.25 0.20 0.25 0.20 0.25 0.25 0.30 0.25 0.30 0.30 0.35 0.35 0.35 0.35
25 15 50 30 72 48 82 52 90 60 105 71 70 48 100 320 1150
475 137 900 270 1200 380 1550 435 2040 610 3750 1050 2500 840 2000 3600 6070
5.8 4.4 11 8.1 22 16 51 32 56 41 122 102 148 145 227 379 989
51 39 100 72 196 142 451 283 492 360 1081 901 1313 1287 2008 3357 8753
1.0 1.5 2.8 3.0 7.5 8.0 19 20 28 30 55 60 110 128 200 420 2570
0.85 1.3 2.4 2.6 6.4 6.8 16 17 24 26 47 51 94 109 170 357 2185
3000 2000 1000
0.3 0.4 1.2 2.3 3.0 5.0 6.5 9.0 16.3 35
0.66 0.88 2.65 5.07 6.61 11.0 14.3 19.8 35.9 77.2
TL3 – Torque limiter
Series
Length options
(see order codes)
Adjustment range from
min. to max. disengage-
ment torque  T Dis  (approx.
values)
Function systems: single
position (W), multi-position
(D) and load holding (G)
T Dis
Nm
A
in.lb
Nm
B
in.lb
Nm
C
in.lb
Adjustment range from
min. to max. disengage-秒報價 Flokal    OV140  P/N 9705011    加熱器
ment torque  T Dis  (approx.
values)
Function system:
Full?disengagement (F)
T Dis
Nm
A
in.lb
Nm
B
in.lb
Nm
C
in.lb
Axial misalignment
Max.
values
mm
Angular misalignment
Max.
values
°
Lateral misalignment
Max.
values
mm
Axial spring stiffness C a N/mm
Lateral spring stiffness C l N/mm
Torsional rigidity C T
Nm/arcmin
in.lb/arcmin
Moment of inertia J
kgcm 2
in.lb.s 2 .10 -3
Max. speed  b) n Max rpm
Hub material Steel
Bellows material highly flexible stainless steel
Protection element material Hardened steel
Approx. weight m
kg
lb
Max. permitted temperature
°C -30 to +100 (bonded) -30 to +300 (welded)
F -22 to +212 (bonded) -22 to +572 (welded)
Technical data
b) If you have more stringent requirements, please contact WITTENSTEIN alpha
408
15 30 60 150 200 300 500 800 1500 2500
A B A B A B A B A B A B A B A A A
62 69 72 80 84 94 93 105 99 111 114 128 123 136 151 175 246
62 69 72 80 84 94 93 105 102 114 117 131 127 140 151 184 252
19 22 27 32 32 41 41 49 61 80
1.5 1.5 1.7 1.9 2.2 2.2 2.2 2.2 3 3
13 16 18 19 19 23 25 31 30 34
13 14 17 18 17 20 22 20 26 31
2.8 3.5 3.5 4 4 5.3 5.3 6.4 7.5 10
10-22 12-23 12-29 15-37 20-44 25-56 25-60 30-60 35-70 50-100
55 65 73 92 99 120 135 152 174 243
62 70 83 98 117 132 155 177 187 258
49 55 66 81 90 110 123 133 157 200
Accessories
Couplings
a) Tolerance for shaft/hub connection 0.01-0.05 mm.
L 1F  , L 9F  , D 3F = Full disengagement version F
Series
Length options
(see order codes)
Overall length (without L S ) L 1 mm
Overall length F L 1F mm
Fit length  a) L 2 mm
Actuation path L 8 mm
Distance L 3 mm
Distance F L 9F mm
Screw head length L S mm
Bore diameter
from???to???H7
D 1/2 mm
Outer diameter
of?actuation?ring
D 3 mm
Outer diameter
of?actuation?ring F
D 3F mm
Outer diameter of hub D 5 mm
Your benefits:
· Certified disengagement mechanism in the event of overload
· Pre-set disengagement torque
· Compley backlash free
· Fatigue endurable and maintenance free
· Compensation of shaft misalignments
· Small installation space despite protection element
· Axial mounting via conical clamping hub
Optional:
· Bores with key / involute
· Other designs
Dimensions
* Bore for torque adjusting wrench, see Page 403
409
alpheno ?
HG +
SP +
VDH +
Shrink discs – Always well connected
Harmony in perfection:
Our shrink discs are ideally adapted
to your extremely compact hollow
shaft or mounted shaft connection.
This means maximum performance
of your drive!
The best accessories for the best
gearhead in order to achieve full
performance.
Your benefits:
· Technically and geometrically matched
· Compact version
· Simple mounting and removal
· Backlash-free, positive connection
· High true-running accuracy
· Two-part design
Your benefits
· Reliable and safe transmission
· Huge installation space reduction
· Multiple reuse
· High dynamism and accuracy
· Extremely smooth-running
· Corrosion resistant design
410
d D A H* H2* J [ kgcm 2 ]
SP + / SPK + / HG + 060
SD 018x044 S2 SD 018x044 N2 SD 018x044 E2
18 44 30 15 19 0,252
20000744 20048496 20048491
SP + / SPK + / HG + 075
SD 024x050 S2 SD 024x050 N2 SD 024x050 E2
24 50 36 18 22 0,729
20001389 20047957 20043198
SP + / SPK + / HG + 100
SD 036x072 S2 SD 036x072 N2 SD 036x072 E2
36 72 52 22 27,5 3,94
20001391 20048497 20035055
SP + / SPK + / HG + 140
SD 050x090 S2 SD 050x090 N2 SD 050x090 E2
50 90 68 26 31,5 11,1
20001394 20048498 20047937
SP + / SPK + / HG + 180
SD 068x115 S2 SD 068x115 N2 SD 068x115 E2
68 115 86 29 34,5 31,1
20001396 20048499 20048492
d D A H* H2* J [ kgcm 2 ]
VDH + / VDHe 040
SD 024x050 S2 SD 024x050 N2 SD 024x050 E2
24 50 36 18 22 0,729
20001389 20047957 20043198
VDH + / VDHe 050
SD 030x060 S2V SD 030x060 N2 SD 030x060 E2
30 60 44 20 24 1,82
20020687 20047934 20047885
VDH + / VDHe 063
SD 036x072 S2V SD 036x072 N2V SD 036x072 E2
36 72 52 22 27,5 3,94
20020688 20047530 20035055
VDH + 080
SD 050x090 S2V SD 050x090 N2V SD 050x090 E2
50 90 68 26 31,5 11,1
20020689 20047935 20047937
VDH + 100
SD 062x110 S2V SD 062x110 N2 SD 062x110 E2
62 110 80 29 34,5 27
20020690 20047927 20047860
Accessories
Shrink disc
Quick shrink disc selection
Recommendation for the load shaft:
Tolerance h6
Surface roughness  ≤ Rz 16
Minimum yield strength Rp 0.2 ≥ 385 N/mm 2
The shrink disc is not included in the scope of
delivery of the gearhead. Therefore, it must be
ordered separay (for the V-Drive gearhead
type,?this is possible in the order code).
Gearhead type Order code/Article code
Standard Nickel plated Stainless steel
Order code
Article code
Order code
Article code
Order code
Article code
Order code
Article code
Order code
Article code
* Apply for the unclamped state.
Shrink discs suitable for alpheno ? and PKF gearheads upon request.
Gearhead type Order code/Article code
Standard Nickel plated Stainless steel
Order code
Article code
Order code
Article code
Order code
Article code
Order code
Article code
Order code
Article code
* Apply for the unclamped state.
One shrink disk per gearhead is sufficient. Please refer to the operating instructions for information on correct shrink disc installation.
The instructions are enclosed with the order.
Mounting / operating manual at www.wittenstein-alpha.de/en/download
411
Flange shafts – Flexible in design
More design freedom for the output:
Our flange shafts provide you with
made to measure output shafts, es-
pecially adapted for TP + , TPK + , TK +
and TPC + flange gearheads:
· Flexible shaft diameter
· Can be adapted to your output
components
· Customized options possible
Your benefits
· Geometrically adapted to the gearhead
· Choice of shaft diameters
· Can also be combined with couplings
· Other options available on request
(material, geometry)
Your benefits
· Simple selection
· Greater design freedom
· A flexible solution for your drive
412
Accessories
Flange
shafts
Quick flange shaft selection
Technical characteristics:
Yield strength R p : ≤ 245N/mm2
Tolerance k6
Surface roughness R Z : ≤ 25
The flange shaft and fastening screws are not
included with the gearhead.
For more precise information on mounting, please
see the gearhead operating instructions.
Schematic diagram:
D1 = Shaft diameter
L1 = Effective shaft length
L2 = Overall length
Gearhead
TP + / TPK + /
TK + / TPC +
Diam. of shaft
D1 option A
[mm]
Order code Diam. of shaft
D1 option B
[mm]
Order code Effective shaft
length L1
[mm]
Overall length
L2
[mm]
004 MF 16 FLW TP 004-S-016-023-033 22 FLW TP 004-S-022-023-033 23 033
010 MF 22 FLW TP 010-S-022-030-041 32 FLW TP 010-S-032-030-041 30 041
010 MA 22 FLW TP 010-A-022-042-065 32 FLW TP 010-A-032-042-065 42 065
025 MF 32 FLW TP 025-S-032-038-051 40 FLW TP 025-S-040-038-051 38 051
025 MA 32 FLW TP 025-A-032-050-079 40 FLW TP 025-A-040-050-079 50 079
050 MF 40 FLW TP 050-S-040-038-054 55 FLW TP 050-S-055-038-054 38 054
050 MA 40 FLW TP 050-A-040-062-095 55 FLW TP 050-A-055-062-095 62 095
110 MF 55 FLW TP 110-S-055-052-073 75 FLW TP 110-S-075-052-073 52 073
110 MA 55 FLW TP 110-A-055-081-119 75 FLW TP 110-A-075-081-119 81 119
300 MF 90 FLW TP 300-S-090-123-150 123 150
300 MA 90 FLW TP 300-A-090-123-150 090 150
413
416
418
422
424
426
428
432
438
Information
Quick gearhead selection 
Gearhead – Detailed sizing
Hypoid – Detailed sizing
Modular system matrix “Output type”
V-Drive – Detailed sizing
Coupling – Detailed sizing
Glossary
Order information
414
Information
Always there for you!
Technical support:
. +49 7931 493-10800
Information
Quick  gearhead selection
416
alpha
Information
Quick  gearhead selection
a) recommended by WITTENSTEIN alpha. Please contact us if you require further assistance.
The quick gearhead selection feature is designed exclusively for calculating gearhead sizes approximay. Quick selection is not
a substitute for the detailed sizing feature! To select a specific gearhead, proceed as described in the Chapter ”Gearhead –
Detailed sizing“ or ”V-Drive – Detailed sizing“. For quick, convenient and reliable gearhead selection, we recommend using
WITTENSTEIN alpha’s cymex ? sizing software.
Cyclic operation S5
Valid for
≤ 1000 cycles/hour
Duty cycle
< 60 % and < 20 min. a)
1. Calculate the max. motor acceleration
torque using motor data
T MaxMot [Nm] or [in.lb]
2. Calculate the max. available
acceleration torque at the gearhead
output T 2b [Nm] or [in.lb]
T 2b = T MaxMot · i
3. Compare the max. available accelera-
tion torque T 2b [Nm] or [in.lb] with the
max. permissible acceleration torque
T 2B [Nm] or [in.lb] at the gearhead out-
put
T 2b ≤ T 2B
4. Compare the bore hole diameter on
the clamping hub (see technical data
sheets)
5. Compare the motor shaft length
L Mot [mm] or [in] with the min. and
max. dimensions in the corresponding
dimension sheet
Continuous operati-
on S1
Duty cycle
≥ 60 % or ≥ 20 min. a)
1. Select cyclic operation S5
2. Calculate the rated motor torque
T 1NMot [Nm] or [in.lb]
3. Calculate the previous rated torque
at the gearhead output T 2n [Nm] or
[in.lb]
T 2n = T 1NMot · i
4. Compare the previous rated torque
T 2n [Nm] or [in.lb] with the permissible
nominal torque T 2N [Nm] or [in.lb] at the
gearhead output
T 2n ≤ T 2N
5. Calculate the previous input speed
n 1n [rpm]
6. Compare the previous input speed
n 1n [rpm] with the permissible rated
speed n 1N [rpm]
n 1n ≤ n 1N
417
Calculate the duty cycle ED
ED ≤ 60 %
and ED ≤ 20 min.
ED > 60 % or
ED > 20 min
Cyclic operation:
Use standard gearhead:
Continuous operation: recommended
Use SP + HIGH SPEED or LP +
(otherwise consult us)
no
yes
Gearhead – Detailed sizing
Calculate the number of cycles Z h [1/h]
a) see diagram 1 “Shock factor”
ED =
(t b + t c + t d )
(t b + t c + t d + t e )
· 100 [%]
ED = t b + t c + t d [min]  a)
Z h a) =
3600 [s/h]
(t b + t c + t d + t e )
Calculate the shock factor f s
(see diagram 1)
Calculate the max. acceleration torque
at the output including the shock factor
T 2b,fs [Nm] or [in.lb]
T 2b, fs < T 2B
f s is dependent on Z h (diagram 1)
T 2b = depends on the application
T 2b, fs = T 2b · f s
Select a larger
gearhead
Calculate the max. output speed n 2max
[rpm] (see diagram 2)
Calculate the ratio i
n 1max < n 1Max
Smaller
ratio i
Calculate the EMERGENCY STOP
torque T 2not [Nm] or [in.lb]
T 2not < T 2Not
Select a
larger gearhead
n 2max depends on the application
i depends on
n – required output speed (for the application)
– reasonable input speed (gearhead/motor)
n 1max = n 2max · i
n 1max ≤ n 1Mot max
T – consisting of corresponding output and input
torque
λ – from resulting inertia ratio.
Guide value: 1 ≤  λ ≤ 10
(see alphabet for calculation)
T 1b = T 2b ·
1
i
T 1b ≤ T Mot max
1
η
·
T 2not depends on the application
Please refer to the relevant technical data for information on
the max. permissible characteristic values for your gearhead.
To design a V-Drive gearhead, see Chapter “V-Drive – Detailed
sizing”.
yes
no
no
Cyclic operation  S5 and continuous operation  S1
418
alpha
Information
Calculate the average output torque T 2m
[Nm] or [in.lb] (see diagram 2)
n 1m < n 1N
Select a motor
T 2max (Motor) ≤ T 2B
Smaller
ratio i
Limit
motor current
Calculate the average input speed n 1m
[rpm] (see diagram 2)
Compare
clamping hub with motor
shaft diameter
Select
other motors
or gearheads
(contact us)
Compare
motor shaft length with
min./max. dimensions in the
gearhead dimension
sheet
Select a larger
gearhead
Select
other motors
or gearheads
(contact us)
Calculate the bearing
load and bearing lifespan
(see Chapter “Bearing lifespan“)
T 2m =
|n 2b | · t b · |T 2b | 3 + … + |n 2n | · t n · |T 2n | 3
|n 2b | · t b + … + |n 2n | · t n
3
n 2m =
|n 2b | · t b + ... + |n 2n | · t n
t b + ... + t n
incl. pause
time
n 1m = n 2m · i
D W, Mot ≤ D clamping hub
The motor shaft must be inserted far
enough into the clamping hub.
1. The motor shaft must protrude
far enough into the clamping hub
without making contact.
T 2max (Motor) = T 1max (Motor) · i · η gearhead
2. The gearhead should not be
damaged when the motor operates
at full load, limit the motor current
if necessary.
Diagram 2
Standard collective load at output
If the load on the gearhead in continuous operation S1 is less than or equal to the rated
torque T 2N , the gearing is. At input speeds less than/equal to the rated speed n 1N , the
temperature of the gearhead will not exceed 90 °C under average ambient conditions.
Diagram 1
Large number of cycles combined with short acceleration times may cause the drive
train to vibrate. Use the shock factor f s to include the resulting excess torque values
in calculations.
no
no
Number of cycles per hour
Shock factor
Torque Speed
Cycle duration
Time
Time
Emer
Emer
(Start/Stop/Event)
no
no
no
yes
yes
yes
yes
yes
T 2m <T 2N
419
F 2am
F 2rm
Gearhead – Detailed sizing
Bearing lifespan  L h10 (output bearing)
M 2kmax ≤ M 2KMax
F 2rmax ≤ F 2RMax
F 2amax ≤ F 2AMax
Calculate the average axial
and radial force F am , F rm [N] or [lb f ]
≤ f
x 2 > 0
M 2km =
F 2am · y 2 + F 2rm · (x 2 + z 2 )  a)
W
M 2kmax =
F 2amax · y 2 + F 2rmax · (x 2 + z 2 )  a)
W
n 2m =
n 2b · t b + … + n 2n · t n
t b + … + t n
L h10 =
16666
n 2m
K1 2
M 2km
·
p 2
Consult us
yes
no
F 2am =
|n 2b | · t b · |F 2ab | 3 + … + |n 2n | · t n | · F 2an | 3
|n 2b | · t b + … + |n 2n | · t n
3
F 2rm =
|n 2b | · t b · |F 2rb | 3 + … + |n 2n | · t n | · F 2rn | 3
|n 2b | · t b + … + |n 2n | · t n
3
Calculate the average
tilting torque M 2km [Nm] or [in.lb]
Calculate the maximum
tilting torque M 2kmax [Nm] or [in.lb]
Calculate the average speed
n 2m [rpm]
Select a larger
gearhead
Calculate lifespan
L h10 [h]
Is the lifespan L h10
sufficient?
Calculation of bearing lifespan
complete
Select a larger
gearhead
a) x
2 , y 2 , z 2 in mm or in
no
no
yes
[ ]
420
alpha
Information
TP + /TPK + SP + /SPK +
LP + /LPB +
LPK +
alphira ? (CP)
f 0.37 0.40 0.24 0.24
LP + /LPB + /LPK + 050 070  090  120  155
z 2
[mm] 20 28.5 31 40 47
[in] 0.79 1.12 1.22 1.58 1.85
K1 2
[Nm] 75 252 314 876 1728
[in.lb] 664 2230 2779 7753 15293
p 2 3 3 3 3 3
alphira ? (CP) 040 060 080 115
z 2
[mm] 12.5 19.5 23.5 28.5
[in] 0.49 0.77 0.93 1.12
K1 2
[Nm] 15.7 70.0 157.0 255.0
[in.lb] 139 620 1389 2257
p 2 3 3 3 3
SP + /SPK + 060 075 100 140 180 210 240
z 2
[mm] 42.2 44.8 50.5 63.0 79.2 94.0 99.0
[in] 1.66 1.76 1.99 2.48 3.12 3.70 3.90
K1 2
[Nm] 795 1109 1894 3854 9456 15554 19521
[in.lb] 7036 9815 16762 34108 83686 137653 172761
p 2 3.33 3.33 3.33 3.33 3.33 3.33 3.33
TP + /TPK + 004 010 025 050 110 300 500 2000 4000
z 2
[mm] 57.6 82.7 94.5 81.2 106.8 140.6 157 216 283
[in] 2.27 3.26 3.72 3.20 4.21 5.48 6.12 8.50 11.1
K1 2
[Nm] 536 1325 1896 4048 9839 18895 27251 96400 184000
[in.lb] 4744 11726 16780 35825 87075 167220 241171 853140 1628400
p 2 3.33 3.33 3.33 3.33 3.33 3.33 3.33 3.33 3.33
TK + /SK + /HG + /LK + : Calculation using cymex ? .
Please contact us for further information.
Example with output shaft and flange:
metric inch
W 1000 1
421
M 3k = F 3a · y 3 +F 3r · (x 3 +z 3 )
Gearhead types and sizes
TK + 004
SK + 060
HG + 060
SPK + 075
TPK + 010
TPK + 025 MA
TK + 010
SK + 075
HG + 075
SPK + 100
TPK + 025
TPK + 050 MA
Dimensions of rearward drive
Solid shaft diameter ?D k6 mm 16 16 22 22 
Solid shaft length L  mm 28 ±0.15 28 ±0.15 36 ±0.15 36 ±0.15 
Hollow shaft interface outer diameter ?D h8 mm 18 18 24 24 
Hollow shaft interface inner diameter ?d h6 mm 15 15 20 20 
Hollow shaft interface length L hw mm 14 14 16 16 
Distance from input axis A  mm 42.9 42.9 52.6 52.6 
Key dimensions
(E = key as per DIN 6885,
sheet 1, form A)
l  mm 25 25 32 32 
b h9 mm 5 5 6 6 
a  mm 2 2 2 2 
h  mm 18 18 24.5 24.5 
Output shaft threaded bore B M5x12.5 M5x12.5 M8x19 M8x19 
Permissible load of rearward drive
Max. acceleration torque  c) T 3B = T 2B - T 2b
Please contact us
= T 2B - T 2b
Please contact us
Nominal output torque  c) T 3N = T 2N - T 2n = T 2N - T 2n 
EMERGENCY STOP torque  c) T 3Not = T 2Not - T 2not = T 2Not - T 2not 
Max. axial force  b) F 3Amax 1,500 1,500 1,800 1,800 
Max. radial force  b) F 3Rmax 2,300 2,300 3,000 3,000 
Max. tilting torque M 3Kmax 60 60 100 100 
Calculation of average tilting torque at the rearward drive
Factor for tilting torque calculation z 3 mm 11.9 11.9 15.6 15.6 
Distance between axial force
and center of gearhead
y 3 mm Application-dependent 
Distance between lateral force
and shaft collar
x 3 mm Application-dependent 
Hypoid – Detailed sizing
a) Connection via shrink discs (see from page 410)
b) Refers to center of shaft
c) Index as small letter = existing value (application-dependent);
index as capital letter = permissible value
(see catalog values from page 150)
Solid shaft with key Rearward drive:
422
alpha
Information
TK + 025
SK + 100
HG + 100
SPK + 140
TPK + 050
TPK + 110 MA
TK + 050
SK + 140
HG + 140
SPK + 180 SPK + 240
TPK + 110 TPK + 500
TPK + 300 MA
TK + 110
SK + 180
HG + 180
SPK + 210
TPK + 300
TPK + 500 MA
32 32 40 40 55 55
58 ±0.15 58 ±0.15 82 ±0.15 82 ±0.15 82 ±0.15 82 ±0.15
36 36 50 50 68 68
30 30 40 40 55 55
20 20 25 25 25 25
63.5 63.5 87 87 107.8 107.8
50 50 70 70 70 70
10 10 12 12 16 16
4 4 5 5 6 6
35 35 43 43 59 59
M12x28 M12x28 M16x36 M16x36 M20x42 M20x42
= T 2B - T 2b
Please contact us
= T 2B - T 2b
Please contact us
= T 2B - T 2b
Please contact us = T 2N - T 2n = T 2N - T 2n = T 2N - T 2n
= T 2Not - T 2not = T 2Not - T 2not = T 2Not - T 2not
2,000 2,000 9,900 9,900 4,000 4,000
3,300 3,300 9,500 9,500 11,500 11,500
150 150 580 580 745 745
16.5 16.5 20 20 23.75 23.75
Application-dependent
Application-dependent
Hollow shaft interface a) Hollow shaft
No connection possible
Closed cover
No connection possible
423
Modular system matrix "Output type"
S K + _ 1 0 0 B – M F 1 – 7 – D E 1 / motor
Type code: B = Modular output combination
S = Standard
Output shaft shape
HG + /SK + /SPK + /TK + /TPK +
When selecting an output combination from the modular system, please select the letter "B" as the type code in the order
code. The digit for the required type of output is the modular matrix system.
Example: If you opt for an SK + with a smooth shaft and require an additional output in the form of a keywayed output shaft,
then select the letter "G" and enter in the order key under "Output shaft shape".
Smooth shaft Keywayed shaft Hollow shaft interface Hollow shaft Cover
SK + / SPK +
Smooth shaft
D G A - 0*
Keywayed shaft
E H B - 1*
Involute
F I C - 2*
SPK +
Attachable shaft
O P N - 5*
TK +
Flanged hollow shaft
D G 6 5* 0
TPK +
Flanged hollow shaft
D G 6 - 0*
HG +
Hollow shaft
D G 6* 5* 0
Backward
Front
Output type
* Standard version: please specify type code "S" in the order code
424
alpha
Information
425
0 1 100 1
1000 1,3 80 0,94
3000 1,9 60 0,86
6000 2,2 40 0,74
10000 2,3 20 0,56
VD 040 VD 050
4 7 10 16 28 40 4 7 10 16 28 40
0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53
0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53
0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,56 0,61 0,53
0,64 0,89 0,96 0,88 0,96 0,84 0,57 0,75 0,78 0,86 0,95 0,79
1,03 1,15 1,24 1,29 1,40 1,25 0,89 1,16 1,22 1,16 1,28 1,23
VD 063 VD 080
4 7 10 16 28 40 4 7 10 16 28 40
0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,53 0,54 0,57 0,64 0,53
0,53 0,53 0,53 0,56 0,65 0,57 0,7 0,82 0,8 0,83 0,88 0,78
0,76 0,95 0,94 0,99 1,06 1,01 0,9 1,12 1,1 1,28 1,37 1,2
1 1,11 1,23 1,32 1,42 1,38 1,22 1,58 1,57 1,88 2,03 1,78
1,44 1,56 1,74 1,9 2,07 2,03 1,66 1,78 1,79 2,16 2,35 2,06
VD 100
4 7 10 16 28 40
0,62 0,7 0,72 0,73 0,79 0,69
0,79 0,93 0,98 0,99 1,09 0,94
1,18 1,3 1,4 1,44 1,62 1,53
1,83 1,96 2,16 2,24 2,56 2,46
- - - - - -
V-Drive – Detailed sizing
Select a gearhead
Select a larger
gearhead
1) Mechanical T 2Max * ≥ T 2b · f s
2) Thermal T 2Max * ≥ T 2b · f e · f t
Gearhead selection
complete
T 2Max * = Max. permissible torque at gearhead
T 2b Process torque
* For applications with maximum precision requirements throughout lifespan, T 2Servo should be used
Ratios i = 28 and i = 40 are self-locking at zero speed.
The self-locking state may be overcome and therefore the gearhead should not replace a brake.
For applications that run at a continuous speed of 3000 rpm or more and a temperature of > 30 °C
in installation position D, E or G, please contact us.
Cycles per hour Load factor f s
Duty cycle for
each hour (DC%)
f e for duty cycle
Temperature factor f t
Ratio
n 1N =  500 rpm
n 1N = 1,000 rpm
n 1N = 2,000 rpm
n 1N = 3,000 rpm
n 1N = 4,000 rpm
Ratio
n 1N =  500 rpm
n 1N = 1,000 rpm
n 1N = 2,000 rpm
n 1N = 3,000 rpm
n 1N = 3,500 rpm
Ratio
n 1N =  500 rpm
n 1N = 1,000 rpm
n 1N = 2,000 rpm
n 1N = 3,000 rpm
n 1N = 4,000 rpm
no yes
426
alpha
Information
Index “2”  = ^ output
Bearing lifespan L h10 (output bearing)
M 2 k max ≤ M 2 K Max
F 2 r max ≤ F 2 R Max
F 2 a max ≤ F 2 A Max
Calculate the average axial and radial
force F 2am , F 2rm [N]
F 2am
F 2rm
≤ 0.4
x 2 > 0
F 2am =
n 2b · t b · F 2ab 3 + … + n 2n · t n · F 2an 3
n 2b · t b + … + n 2n · t n
3
F 2rm =
n 2b · t b · F 2rb 3 + … + n 2n · t n · F 2rn 3
n 2b · t b + … + n 2n · t n
3
M 2km =
F 2am · y 2 + F 2rm · (x 2 + z 2 )
W
Z 2 [mm] VDT +
VDH + /VDHe/
VDSe
VDS +
VD 040 - 57.25 -
VD 050 104 71.5 92.25
VD 063 113.5 82 111.5
VD 080 146.75 106.25 143.25
VD 100 196 145.5 181
M 2 k max =
F 2 a max · y 2 + F 2 r max · (x 2 + z 2 )
W
Type VD 040 VD 050 VD 063 VD 080 VD 100
M 2K Max [Nm] 205 409 843 1,544 3,059
F 2R Max [N] 2,400 3,800 6,000 9,000 14,000
F 2A Max [N] 3,000 5,000 8,250 13,900 19,500
Calculate the average
tilting torque M 2k m [Nm]
Calculate the maximum
tilting torque M 2k max [Nm]
Calculate the average
speed n 2 m [rpm]
n 2 m =
n 2 b · t b + … + n 2 n · t n
t b + … + t n
K1 2 [Nm] VDT +
VDH + /VDHe/
VDSe
VDS +
VD 040 - 1,230 -
VD 050 3,050 2,320 2,580
VD 063 4,600 3,620 5,600
VD 080 9,190 9,770 10,990
VD 100 20,800 15,290 20,400
Calculate
lifespan L h10 [h]
P t T/H/S
i = 4 1.5
i = 7 0.72
i = 10 0.6
i = 16 0.5
i = 28 0.4
i = 40 0.36
L h10 =
16666
n 2m
K1 2
p t · T 2m + M 2km
· [ ]
3.33
Gearhead selection
complete
Is the lifespan L h10
sufficient?
Select a larger
gearhead
Please contact us!
yes
no
no
yes
yes no
Output (VDT + -, VDH + -, VDHe-, VDS + - & VDSe- version)
VDS + involute
VDS + / VDSe
smooth, keywayed
VDH +  /VDHe
smooth
VDT +
VDH +  /VDHe
keywayed
metric
W 1,000
T 2m =
|n 2b | · t b · |T 2b | 3 + … + |n 2n | · t n · |T 2n | 3
|n 2b | · t b + … + |n 2n | · t n
3
Speed
Cycle duration
Time
Time
(Start/Stop/Event)
Force
427
<1000 1,0
<2000 1,1
<3000 1,2
<4000 1,8
>4000 2,0
Z h =
3600 [s/h]
(t b + t c + t d + t e )
T 2b, fsB < T B
T Dis max ≤ T B
Coupling – Detailed sizing
Calculate the number of cycles Z h [1/h]
Torque limiter
(TL1, TL2, TL3)
Metal bellows coupling
(EC2, BC2, BC3, BCH, BCT)
The max. speed range of the coupling must be adhered to:
n max ≤ n Max
(in the event of other requirements, please request the finely balanced version)
Select a larger coupling
Select a larger coupling
Set precise disengage-
ment torque T Dis
Calculate the load factor for metal
bellows and torque limiters f sB
(see table 1)
Calculate the max. acceleration torque
at the output including the load factor
T 2b ,f sB [Nm]
Coupling type
yes
yes
no
no
Table 1: Load factor Metal bellows and torque limiters
f sB is dependent on Z h
(table 1)
T 2b = depends on the application
T 2b,  f sB = T 2b · f s
T B = Max. acceleration torque
of coupling (max. 1000 cycles
per hour)
T Dis = Depends on the application: Please
set the precise disengagement torque
(preset by WITTENSTEIN alpha) above
the maximum application load and below
the maximum transferable disengage-
ment torque of torque limiter T Dis max
within the selected adjustment range,
in order to protect the drive components
Metal bellows and torque limiters – Detailed sizing
(EC2, BC2, BC3, BCH, BCT, TL1, TL2, TL3)
Number of cycles Z h [1/h] Load factor f sB
428
alpha
d W1/ 2 min.  ≥ D 1/2 Min
d  W1/ 2 max.  ≤ D 1/2 Max
f e =
1
2 · π
[Hz]
J A + J L
J A · J L
C T  ·
Information
Select larger coupling, adapt load
shaft or clamping system
Comparison of load shaft diameter on drive and output side d W1/2 with the bore hole diameter area of coupling D 1/2
Detailed sizing of metal bellows and torque limiters complete
yes
no
d W1  = Drive-side shaft diameter (motor/gearhead)
d W2 = Output-side shaft diameter (application)
d W1/2 min.  = Min. shaft diameter (drive/output)
d W1/2 max.  = Max. shaft diameter (drive/output)
D 1/2 Min  = Min. bore diameter of coupling
D 1/2 Max  = Max. bore diameter of coupling
Note:
The resonant frequency of the coupling must be higher or lower than the
machine frequency. For the purpose of calculation, the drive is reduced to
a two-mass system:
Maximum misalignments:
Permissible values (axial, angular, lateral) for shaft misalignments must be adhered to
EMERGENCY STOP torque:
If there is a need for the transmission of EMERGENCY STOP situations, it is recommended to use torque
limiters (TL1, TL2 and TL3) in order to protect further drive components and to increase the overall service life.
Models EC2, BC2, BC3 and BCH can briefly transmit 1.5 times the T B of the coupling, provided all the other
instructions are complied with (see T Emer ).
For torque limiters with the "Load holding version" functional system, double load safety is ensured for the TL1 cou-
pling (indirect drives), while an adequate size must be ensured for the TL2 and TL3 models with bellows attachment:
Blocking load < T B of the coupling!
C T = Torsional rigidity of coupling  [Nm/rad]
f e = Natural frequency of 2-mass system [Hz]
f er = Excitation frequency of drive  [Hz]
J L = Moment of inertia of machine  [kgm 2 ]
J A  = Moment of inertia on drive side  [kgm 2 ]
Best practices in sizing: f e ≥ 2 x f er Two-mass system
Coupling
Drive Machine
Clamping hub
(EC2, BC2, BCT,
BCH, TL1, TL2)
Torque transmitted in case of
identical diameter
Adapt hub shape in case of identical diameter
Conical clamping hub
(BC3, TL1, TL3)
Positive connection
(key shape A DIN 6885,
involute DIN 5480)
429
<1000 1,0
<2000 1,2
<3000 1,4
<4000 1,8
>4000 2,0
A B C
A B C
1,5 1,7 1,4
1,0 1,0 1,0
1,2 1,1 1,3
1,4 1,3 1,5
1,7 1,5 1,8
2,0 1,8 2,1
- 2,4 -
EL6 ELC
T 2n x f tE  ≤ T NE *
Z h =
3600 [s/h]
(t b + t c + t d + t e )
T 2b,fsE,ftE  = T 2b · f sE · f tE
T 2b,fsE,ftE ≤ T BE T 2b,fsE,ftE ≤ T BE*
Coupling – Detailed sizing
Select larger coupling, different
elastomer ring or bore diameter
Select larger coupling or
different elastomer ring
Calculate the rated torque of the
application T 2n [Nm]
Calculate the temperature factor f tE
(see table 1)
Calculate the number of cycles Z h [1/h]
Calculate the load factor of elastomer
couplings f sE
(see table 2)
Calculate the max. acceleration torque at
the output including the temperature fac-
tor and load factor for elastomer couplings
T 2b,fsE,ftE [Nm]
Coupling model
yes
no
no no
Table 2: Load factor for elastomer couplings
Table 1: Temperature factor for elastomer couplings dependent on
elastomer ring and ambient temperature
f sE The load factor of elastomer cou-
plings is dependent on Z h (table 2)
T 2n = Depends on the application
f tE = The temperature factor for
elastomer couplings is depen-
dent on the elastomer ring and
the ambient temperature at the
coupling (see table 1)
T NE * = Max. rated torque
of elastomer ring
* = The maximum torque transmitted
by the ELC coupling is also depen-
dent on the minimum bore diameter
(please also compare with table on
catalog page 401 ELC couplings)
Elastomer couplings – detailed sizing (EL6, ELC)
Number of cycles Zh [1/h] Impact factor f sE
T 2b = depends on the application
T BE = max. acceleration torque of
elastomer
(max. 1000 cycles per hour)
Temperature factor f tE Elastomer ring
Temperature [°C]
> -30 to -10
> -10 to +30
> +30 to +40
> +40 to +60
> +60 to +80
> +80 to +100
> +100 to +120
Transmittable torque
(qualitative)
Elastomer ring type
The max. speed range of the coupling must be adhered to:
n max ≤ n Max
(in the event of other requirements, please request the finely balanced version)
430
alpha
d W1/ 2 min.  ≥ D 1/2 Min
d  W1/ 2 max.  ≤ D 1/2 Max
f e =
1
2 · π
[Hz]
J A + J L
J A · J L
C T  ·
Information
Select larger coupling, adapt load
shaft or clamping system
Detailed sizing of elastomer couplings complete
Comparison of load shaft diameter on drive and output side d  W 1/ 2 with the bore hole diameter area of coupling D 1/2
yes
no
d W1  = Drive-side shaft diameter (motor/gearhead)
d W2 = Output-side shaft diameter (application)
d W1/2 min.  = Min. shaft diameter (drive/output)
d W1/2 max.  = Max. shaft diameter (drive/output)
D 1/2 Min  = Min. bore diameter of coupling
D 1/2 Max  = Max. bore diameter of coupling
Note:
The max. speed range of the coupling must be adhered to:
n max ≤ n Max (in the case of other requirements, please request the finely balanced version)
Emergency stop torque: Dimensioning does not take emergency stop torques into consideration.
Instead, please regard the required emergency stop torque as the maximum torque of the application.
Maximum misalignments:
Permissible values (axial, angular, lateral) for shaft misalignments must be adhered to
Smooth shaft
Transmittable torque (qualitative)
Adapt clamping system in the event
of identical diameter
Positive connection
(key shape A DIN 6885,
involute DIN 5480)
The resonant frequency of the coupling must be higher or lower than the
machine frequency. For the purpose of calculation, the drive is reduced
to a two-mass system:
Best practices in sizing: f e ≥ 2 x f er Two-mass system
Coupling
Drive Machine
C T = Torsional rigidity of coupling  [Nm/rad]
f e = Natural frequency of
2-mass system  [Hz]
f er = Excitation frequency of drive  [Hz]
J L = Moment of inertia of machine  [kgm 2 ]
J A  = Moment of inertia on drive side  [kgm 2 ]
φ =
Transmission errors due to a torsional load
on the metal bellows (EC2, BC2, BC3,
BCH, BCT, TL2 und TL3):
φ = angle of turn  [degrees]
C T = torsional rigidity of coupling  [Nm/rad]
T 2b = max. available acceleration torque  [Nm]
Based on angle of torsion
[degrees]
180
π
·
T 2b
C T
431
Example with output shaft and flange:
Bushing
Clamping hub
Motor shaft
Glossary
The  alpha bet
Acceleration torque (T 2B )
The acceleration torque T 2B is the
maximum permissible torque that can
briefly be transmitted at the output by
the gearhead after ≤ 1000/h cycles. For
> 1000/h cycles, the ??Shock factor
must be taken into account. T 2B is the
limiting parameter in cyclic operation.
Adapter plate
WITTENSTEIN alpha uses a system of
standardized adapter plates to connect
the motor and the gearhead, making
it possible to mount an WITTENSTEIN
alpha gearhead to any desired motor
without difficulty.
Angular minute
A degree is subdivided into 60 angular
minutes (= 60 arcmin = 60’). In other
words, if the torsional backlash is
specified as 1 arcmin, for example,
the output can be turned 1/60°. The re-
percussions for the actual application
are determined by the arc length:
b = 2 · π · r · α° / 360°. A pinion with a
radius r = 50 mm on a gearhead with
standard torsional backlash j t = 3’ can
be turned b = 0.04 mm.
Axial force (F 2AMax )
In the case of SP + /LP + /SPK + , the axial
force F 2AMax acting on a gearhead runs
parallel to its output shaft. On a TP + ,
the force runs perpendicular to its
output shaft. It may be applied with axi-
al offset via a lever arm y 2 under certain
circumstances, in which case it also
generates a bending moment.
If the axial force exceeds the permissi-
ble catalogue values, additional design
features (e.g. axial bearings) must be
implemented to absorb these forces.
Bushing
If the motor shaft diameter is smaller
than the ??clamping hub, a bushing
is used to compensate the difference
in diameter.
Clamping hub
The clamping hub ensures a frictional
connection between the motor shaft
and gearhead. A ??bushing is used
as the connecting element if the motor
shaft diameter is smaller than that of the
clamping hub.
Continuous operation (S1)
Continuous operation is defined by
the ??duty cycle. If the duty cycle is
greater than 60 % and/or longer than
20 minutes, this qualifies as continuous
operation. ??Operating modes
Cyclic operation (S5)
Cyclic operation is defined via
the ??duty cycle. If the duty cycle
is less than 60 % and shorter than
20 minutes, it qualified as cyclic
operation (??operating modes).
cymex ?
cymex ? is the calculation software de-
veloped by our company for dimensio-
ning complete drive trains. We can also
provide training to enable you to make
full use of all the possibilities provided
by the software.
Degree of protection (IP)
The various degrees of protection are de-
fined in DIN EN 60529 “Degrees of pro-
tection offered by enclosure (IP code)”.
The IP degree of protection (IP stands
for International Protection) is represen-
ted by two digits. The first digit indicates
the protection against the ingress of
impurities and the second the protection
against the ingress of water.
Duty cycle (ED)
The duty cycle ED is determined by
one cycle. The times for acceleration
(t b ), constant travel if applicable (t c ) and
deceleration (t d ) combined yield the duty
cycle in minutes. The duty cycle is ex-
pressed as a percentage with inclusion
of the pause time t e .
Efficiency (η)
Efficiency [%]  η is the ratio of out-
put power to input power. Power lost
through friction reduces efficiency
to less than 1 or 100 %.
η  = P out / P in = (P in – P lost ) / P in
WITTENSTEIN alpha always measures
the efficiency of a gearhead during ope-
ration at full load (T 2B ). If the input power
or torque are lower, the efficiency rating
is also lower due to the constant no-load
torque. Power losses do not increase as
a result. Speed also has an effect on effi-
ciency, as shown in the example diagram
above.
Emergency stop torque (T 2Not )
The emergency stop torque [Nm] T 2Not
is the maximum permissible torque at
the gearhead output and must not be
reached more than 1000 times during
the life of the gearhead. It must never
be exceeded!
??Refer to this term for further details.
Example: IP65
Protection against
impurities
(Dust resistance)
Protection
against water
ED [%] =
t b + t c + t d
t b + t c + t d + t e
Motion duration
Cycle duration
ED [min] = t b + t c + t d
· 100
432
alpha
Information
* 50%
Test torque
T [Nm]
?
T
?
?
?? [arcmin]
? [arcmin]
Backlash (defined)
-T [Nm]
Ex symbol
Devices bearing the Ex symbol com-
ply with EU Directive 94/9/EC (ATEX)
and are approved for use in defined
explosion-hazardous zones
Detailed information on explosion
groups and categories, as well as
further information on the relevant gear-
head are available upon request.
HIGH SPEED (MC)
The HIGH SPEED version of our SP +
gearhead has been specially developed
for applications in continuous operation
at high input speeds, e.g. as found in
the printing and packaging industries.
HIGH TORQUE (MA)
The HIGH TORQUE version of our TP +
gearhead has been specially developed
for applications requiring extremely high
torques and maximum rigidity.
MA = HIGH TORQUE
MC = HIGH SPEED
MF = standard versions of our
WITTENSTEIN alpha servo gearheads
Hysteresis curve
The hysteresis is measured to deter-
mine the torsional rigidity of a gearhead.
The result of this measurement is known
as the hysteresis curve.
If the input shaft is locked, the gearhead
is loaded with a torque that increases
continuously up to T 2B and is then
relieved at the output in both directions.
The torsional angle is plotted against the
torque. This yields a closed curve from
which the ??torsional backlash and
??torsional rigidity can be calculated.
Jerk
Jerk is derived from acceleration and
is defined as the change in acceleration
within a unit of time. The term impact is
used if the acceleration curve changes
abruptly and the jerk is infiniy large.
Lateral force (F R )
Lateral force is the force component
acting at right angles to the output shaft
with the SP + /LP + /SPK + or parallel to
the output flange with the TP + . It acts
perpendicular to the axial force and can
assume an axial distance of x 2 in relation
to the shaft nut with the SP + /LP + ) or
shaft flange with the TP + , which acts as
a lever arm. The lateral force produces
a bending moment (see also axial force).
Mass moment of inertia (J)
The mass moment of inertia J is a
measurement of the effort applied by an
object to maintain its momentary condi-
tion (at rest or moving).
Mesh frequency (f z )
The mesh frequency may cause
problems regarding vibrations in an
application, especially if the excitation
frequency corresponds to the intrinsic
frequency of the application.
The mesh frequency can be calculated
for all SP + , TP + , LP + and alphira ? gear-
heads using the formula f Z = 1,8 · n 2 [rpm]
and is therefore independent of the ratio
if the output speed is the same.
If it does indeed become problematic,
the intrinsic frequency of the system
can be changed or another gearhead
(e.g. hypoid gearhead) with a different
mesh frequency can be selected.
NSF symbol
Lubricants certified as grade H1 by
the NSF (NSF = National Sanitation
Foundation) can be used in the food
sector where occasional unavoidable
contact with food cannot be excluded.
433
Glossary
No load running torque (T 012 )
The no load running torque T 012 is
the torque which must be applied
to a gearhead in order to overcome the
internal friction; it is therefore consi-
dered lost torque. The values specified
in the catalog are calculated by
WITTENSTEIN alpha at a speed of
n 1 = 3000 rpm and an ambient tempera-
ture of 20 °C.
Nominal torque (T 2N )
The nominal torque [Nm] T 2N is the torque
continuously transmitted by a gearhead
over a long period of time, i.e. in ??conti-
nuous operation (without wear).
Operating modes
(continuous operation S1 and
cyclic operation S5)
When selecting a gearhead, it is important
to consider whether the motion profile is
characterized by frequent acceleration and
deceleration phases in cyclic operation
(S5) as well as pauses, or whether it is
designed for continuous operation (S1),
i.e. with long phases of constant motion.
Operating noise (L PA )
Low noise level L PA is a factor of growing
importance for environmental and health
reasons. WITTENSTEIN alpha has suc-
ceeded in reducing the noise of the new
SP + gearheads by another 6 dB(A) over
the former SP units (i.e. sound reduced
to one quarter). Noise levels are now
currently 64 - 70 dB(A) depending on
the size of the gearhead.
The gear ratio and speed both affect
the noise level. The relationships are de-
monstrated in the following trend graphs.
As a general rule: A higher speed
means a higher noise level, while
a higher ratio means a lower noise level.
The values specified in our catalog
relate to gearheads with the ratio
i = 10/100 at a speed of n = 3000 rpm.
Positioning accuracy
The positioning accuracy is determined
by the angular deviation from a setpoint
and equals the sum of the torsional
angles due to load ??(torsional rigidity
and torsional backlash) and kinetics
??(synchronization error) occurring
simultaneously in practise.
Rate of mass moment
of inertia (λ = Lambda)
The ratio of mass moment of inertia λ is
the ratio of external inertia (application
side) to internal inertia (motor and gear-
head side). It is an important parameter
determining the controllability of an
application. Accurate control of dynamic
processes becomes more difficult with
differing mass moments of inertia and
as λ becomes greater. WITTENSTEIN
alpha recommends that a guideline
value of λ < 5 is maintained. A gearhead
reduces the external mass moment of
inertia by a factor of 1/i 2 .
J external reduced to the gear input:
J′ external = J external / i2
Simple applications ≤ 10
Dynamic applications ≤ 5
Highlydynamic applications ≤ 1
Ratio (i)
The gear ratio i indicates the factor by
which the gearhead transforms the three
relevant parameters of motion (speed,
torque and mass moment of inertia).
The factor is a result of the geometry of
the gearing elements (Example: i = 10).
Safety notice
If your application has to meet special
safety requirements (e.g. vertical axes,
tensioned drives), we recommend using
exclusively our alpheno ? , RP + , TP + and
TP + HIGH TORQUE products or contact
WITTENSTEIN alpha for advice.
Shock factor (f s )
The maximum permissible acceleration
torque during cyclic operation specified
in the catalog applies for a cycle rate less
than 1000/h. Higher cycle rates com-
bined with short acceleration times can
cause vibrations in the drive train. Use
the shock factor f s to include the resulting
excess torque values in calculations.
The shock factor f s can be determined
with reference to the curve. This calcula-
ted value is multiplied by the actual ac-
celeration torque T 2b and then compared
with the maximum permissible accelera-
tion torque T 2B . (T 2b · f s = T 2b, fs < T 2B )
Speed (n)
Two speeds are of relevance when
dimensioning a gearhead: the maximum
speed and the nominal speed at the
input. The maximum permissible speed
n 1Max must not be exceeded because
it serves as the basis for dimensioning
T 012 : 0 1? 2
no load  from input end
to output end
λ =
J external
J internal
n 1 = 3000 rpm
T 1 = 20 Nm
J 1 = 0.10 kgm 2
T 2 = 200 Nm
n 2 = 300 rpm
J 2 = 10 kgm 2
(Application)
:i
·i
:i 2
0
45
SP classic
SP +
Speed n [rpm]
Operating noise L PA [d(BA)]
-6 d(BA)
Number of cycles per hour
Shock factor
434
alpha
Information
0 500 1000 1500 2000 2500 3000 3500 4000 4500
100
90
80
60
40
20
0
Rated input speed n 1N [rpm]
Housing temperature [°C]
Ambient temperature of 20°C
Ambient temperature of 40°C
Housing limit temperature
° Rated speed at 20 C
Rated speed at 40°C
Diference
T = 20°C
??cyclic operation. The nominal
speed n 1N must not be exceeded in
??continuous operation.
The housing temperature limits the
nominal speed, which must not ex-
ceed 90 °C. The nominal input speed
specified in the catalogue applies to
an ambient temperature of 20 °C. As
can be seen in the diagram below,
the temperature limit is reached more
quickly in the presence of an ele-
vated outside temperature. In other
words, the nominal input speed must
be reduced if the ambient tempera-
ture is high. The values applicable
to your gearhead are available from
WITTENSTEIN alpha on request.
Synchronization error
The synchronization error is equal
to the variations in speed measured
between the input and output during
one revolution of the output shaft. The
error is caused by manufacturing to-
lerances and results in minute angular
deviations and fluctuations in ratio.
T 2Max
T 2Max means the maximum torque
which can be transmitted by the gear-
box.
This value can be chosen for applica-
tions that can accept a slight increase
in backlash over time.
T 2Servo
T 2Servo is a special value for preci-
sion applications in which a mini-
mum backlash must be guaran-
teed over the life of the gearbox.
The increase in backlash seen in
other worm gears is less due to the
optimized hollow flank teeth.
Technical data
The technical data relating to our
products can be downloaded from
our homepage. Alternatively, you can
send your requests, suggestions and
comments to the address below.
Tilting moment (M 2K )
The tilting torque M 2K is a result of the
??axial and lateral forces applied
and their respective points of appli-
cation in relation to the inner radial
bearing on the output side.
Timing belt
The AT profile of the Wittenstein
standard belt pulley is a flank-cen-
tered profile for backlash-free torque
transmission.
Effective diameter
d0 = Number of teeth z x Pitch p / Pi
Recommended preload per strand for
linear drives Fv ≥ Fu
Radial force at the output shaft for the
determination of the bearing life:
Fr = 2 x Fv
Torque (M)
The torque is the actual driving force
of a rotary motion. It is the product of
lever arm and force. M = F · l
Torsional backlash (j t )
Torsional backlash j t is the maximum
angle of torsion of the output shaft
in relation to the input. Torsional
backlash is measured with the input
shaft locked.
The output is then loaded with a defined
test torque in order to overcome the in-
ternal gearhead friction. The main factor
affecting torsional backlash is the face
clearance between the gear teeth. The
??Refer to this term for further details.
Backlash
low torsional backlash of WITTENSTEIN
alpha gearheads is due to their high
manufacturing accuracy and the specific
combination of gear wheels.
Torsional rigidity (C t21 )
Torsional rigidity [Nm/arcmin] C t21 is
defined as the quotient of applied
torque and generated torsion angle
(C t21 = ?T/?φ). It consequently shows
the torque required to turn the output
shaft by one angular minute. The tor-
sional rigidity can be determined from
the ??hysteresis curve. Only the
area between 50 % and 100 % of T 2B
is considered for because this area of
the curve profile can be considered
linear.
Torsional rigidity C , Torsion angle Φ
Reduce all torsional rigidities to the
output:
C (n),output = C (n),input * i2
with i = Gear ratio [ - ]
C (n)  = single stiffness [Nm/arcmin]
Note: the torsional rigidity C t21 of the
gearbox always relates to the output.
Series connection of torsional rigidities
1/C ges = 1/C 1,output +1/C 2,output + …+ 1/C (n)
Torsion angle Φ [arcmin]
Φ = T 2 * 1/C ges
with T 2 = Output torque [Nm]
WITTENSTEIN alpha
speedline ?
If required, we can deliver a new
SP + ,TP +  or LP +  within 24 or 48 hours
ex works.
435
Glossary
Formulae
Torque [Nm] T = J · α
J = Mass moment of inertia [kgm 2 ]
α = An [1/s 2 ]
Torque [Nm] T = F · I
F = Force [N]
l = Lever, length [m]
Acceleration force [N] F b = m · a
m = Mass [kg]
a = Linear acceleration [m/s 2 ]
Frictional force [N] F frict = m · g · μ
g = Acceleration due to gravity 9.81 m/s 2
μ = Coefficient of friction
Angular velocity [1/s] ω = 2 · π · n / 60
n = Speed [rpm]
π = PI = 3.14...
Linear velocity [m/s] v = ω · r
v = Linear velocity [m/s]
r = Radius [m]
Linear velocity [m/s] (spindle) v sp = ω · h / (2 · π) h = Screw pitch [m]
Linear acceleration [m/s 2 ] a = v / t b
t b  = Acceleration time [s]
Angular acceleration [1/s 2 ] α = ω / t b
Pinion path [mm]  s = m n · z · π / cos β
m n = Standard module [mm]
z = Number of teeth [-]
β = Inclination angle [°]
Conversion table
1 mm = 0.039 in
1 Nm = 8.85 in lb
1 kgcm 2 = 8.85 x 10 -4 in.lb.s 2
1 N = 0.225 lb f
1 kg = 2.21 lb m
436
alpha
Information
Symbols
Symbol Unit Designation
C Nm/arcmin Rigidity
ED %, min Duty cycle
F N Force
f s – Shock factor
f t – Temperature factor
f e – Factor for duty cycle
i – Ratio
j arcmin Backlash
J kgm 2 Moment of inertia
K1 Nm Factor for bearing calculation
L h Service life
L PA dB(A) Operating noise
m kg Mass
M Nm Torque
n rpm Speed
p – Exponent for bearing calculation
η  % Efficiency
t s Time
T Nm Torque
v m/min Linear velocity
x mm
Distance between lateral force
and shaft collar
y mm
Distance between axial force and
center of gearhead
z mm Factor for bearing calculation
Z 1/h Number of cycles
Index
Capital letter Permissible values
Small letter Actual values
1 Drive
2 Output
3
Rearward drive
(for hypoid gearheads)
A/a Axial
B/b Acceleration
c Constant
cym
cymex ? values (load-related
characteristic values)
d Deceleration
e Pause
h Hours
K/k Tilting
m Mean
Max/max Maximum
Mot Motor
N Nominal
Not/not Emergency stop
0 No load
R/r Radial
t Torsional
T Tangential
437
Order information
Gearhead type
TP + 004 – TP + 4000
SP + 060 – SP + 240
Gearhead type
TK + 004 – TK + 110
TPK + 010 – TPK + 500
SK + 060 – SK + 180
SPK + 075 – SPK + 240
HG + 060 – HG + 180
SC + 060 – SC + 180
SPC + 060 – SPC + 180
TPC + 004 – TPC + 110
Gearhead type
LP + 050 – LP + 155
LPB + 070 – LPB + 120
Type code
S = Standard
A = Optimized mass
moment of inertia  b)
E = Version in ATEX  b)
F = Food-grade lubrication  b)
G = Grease  b)
L = Low friction (SP + 100 -
240 HIGH SPEED)
W = Corrosion resistant  b)
Type code
S = Standard
B = Modular output combi-
nation (SK + , SPK + , TK + ,
TPK + , HG + )  c)
E = Version in ATEX  b) d)
F = Food-grade lubrication  b)
W = Corrosion resistant  b)
Type code
S = Standard
F = Food lubrication
Number of stages
1 = 1-stage
2 = 2-stage
3 = 3-stage
Number of stages
1 = 1-stage
2 = 2-stage
3 = 3-stage
4 = 4-stage
Number of stages
1 = 1-stage
2 = 2-stage
Gearhead model
F = Standard
A = HIGH TORQUE
(only TP + )
C = HIGH SPEED (only SP + )
Gearhead model
F = Standard
A = HIGH TORQUE
(only TPK + )
Gearhead model
F = Standard
Gearhead variations
M = Motor attachment
gearhead
S = Separate version
Gearhead variations
M = Motor attachment
gearhead
Gearhead variations
M = Motor attachment
gearhead
Gearhead type
LK 050 – LK 155
LPK 050 – LPK 155
LPBK 070 – LPBK 120
CP 040 – CP 115
(alphira ? )
Ratios
See technical data sheets.
Number of stages
1 = 1-stage
2 = 2-stage
3 = 3-stage (LPK + )
Gearhead model
O = Standard
L = Food-grade grease
Gearhead variations
M = Motor attachment
gearhead
Gearhead type
VDT = TP flange
VDH = hollow shaft
VDS = shaft
Gearhead version
e = economy
(only for VDH and
VDS, size 040, 050
and 063)
Number of stages
1 = 1-stage
Distance between
axes
040, 050, 063, 080,
100
Gearhead model
F = Standard
L = Food-grade
lubrication
W = Corrosion resistant
Gearhead variations
M = Motor attachment
gearhead
a) Order shrink discs separay, see section accessories, shrink discs on page 410
b) Reduced specification available on request
a) Order shrink discs separay, see section accessories, shrink discs on page 410
b) Reduced specification available on request
c) See modular system matrix, page 424
d) SK + /TK + /HG + only
** See section accessories, shrink discs on page 410
438
Output shape
0 = smooth shaft/flange
1 = shaft with key
2 = involute to DIN 5480
3 = system output
4 = other
5 = Shaft mounted (SP + ) a)
Output shape
0 = smooth shaft/flange
(no hollow shaft)
1 = shaft with key
2 = involute to DIN 5480
3 = system output
4 = other
5 = Hollow shaft interface / Flanged
hollow shaft (TK + ) a)
Shaft mounted (SPK + /SPC + ) a)
6 = 2 hollow shaft interfaces (HG + ) a)
(see technical data sheets)
Output shape
0 = Smooth shaft/flange
1 = Shaft with key
Backlash
1 = Standard
0 = Reduced
(see technical
data sheets)
Backlash
1 = Standard
0 = Reduced
(see technical
data sheets)
Backlash
1 = Standard
(see technical
data sheets)
Backlash
1 = Standard
Clamping hub bore hole diameter
1 = Standard
(see technical data sheets)
Ratios
4 (not for economy sizes
050 and 063)
7
10
16
28
40
Backlash
1 = Standard
0 = Reduced
Clamping hub bore hole
diameter
2 = 14 mm (040)
3 = 19 mm (040, 050)
4 = 28 mm (063)
5 = 35 mm (080)
7 = 48 mm (100)
Output shape
0 = smooth shaft/flange
1 = shaft with key
2 = involute to DIN 5480 (VDS + )
4 = other (see technical data sheets)
8 = Dual-shaft output, smooth
(VDS + , VDSe)
9 = Dual-shaft output with key
(VDS + , VDSe)
Ratios
See technical data sheets.
Ratios
See technical data sheets.
Ratios
See technical data sheets.
X = Special model
X = Special model
X = Special model
X = Special model
Clamping hub bore hole
diameter
(see technical data sheets
and clamping hub diameter
table)
Clamping hub bore hole
diameter
(see technical data sheets
and clamping hub diameter
table)
Clamping hub bore hole
diameter
(see technical data sheets
and clamping hub diameter
table)
VDH – number of shrink
discs**
0 = no shrink disc
1 = one shrink disc
2 = two shrink discs
Output shape
0 = Smooth shaft
(for LP + only)
1 = Shaft with key
LPBK +
1 = Centering on output side
Installation
on motor side
S = Push-on
sleeve
K = Coupling
Installation
on motor side
S = Push-on
sleeve
K = Coupling
Installation
on motor side
S = Push-on
sleeve
K = Coupling
S P _ _ 1 0 0 S – M F 1 – 7 – 0 E 1 – 2S / Motor*
S K _ _ 1 0 0 S – M F 1 – 7 – 0 E 1 – 1K / Motor*
L P K _ 1 2 0 – M O 2 – 7 – 1 1 1 – / Motor*
Order codes
TP + /SP +
TK + /TPK + /SK + /SPK + /HG + /SC + /SPC + /TPC +
Gearhead type
Gearhead type
Gearhead type
Type code
Type code
Type code
Gearhead variations
Gearhead variations
Gearhead variations
Gearhead model
Gearhead model
Gearhead model
Number of stages
Number of stages
Number of stages
Ratios
Ratios
Ratios
Output shaft shape
Output shaft shape
Output shaft shape
Clamping hub
bore hole diameter
Clamping hub
bore hole diameter
Clamping hub
bore hole diameter
Backlash
Backlash
Backlash
Gearhead type Gearhead variations
Gearhead model
Number of stages
Ratios
Output shaft shape
Clamping hub bore
hole diameter
Backlash
LP + /LPB +  Generation 3
LK + /LPK + /LPBK + /CP (alphira ? )
V-Drive
Gearhead type
Gearhead model
Number of stages
Ratios
Output shaft shape
Clamping hub
bore hole diameter
Backlash
Mounting position (see overview)
VDH – number
of shrink discs
V D H e 0 5 0 – M F 1 – 7 – 0 3 1 – A C 0 / Motor*
L P _ _ 0 9 0 S – M F 1 – 5 – 0 G 1 – 3S / Motor*
Gearhead
version
Gearhead
variations
Distance
between axes
* Full motor designation only required for determining gearhead attached components!
* Full motor designation only required for determining gearhead attached components!
440
AC AF AD AG AE
BC BF BD BG BE
Mounting positions and clamping hub diameters
B5 – horizontal V1 – vertical
Output shaft
downwards
V3 – vertical
Output shaft
upwards
S – can be tilted
± 90° from a horizontal
position
Clamping hub diameter
(the technical data sheet contains all diameters available for
TP + , SP + , TK + ,TPK + , SK + , SPK + , SC + , SPC + , TPC + , HG + and LP +  models)
Code letter mm
B 11
C 14
D 16
E 19
G 24
H 28
Code letter mm
I 32
K 38
L 42
M 48
N 55
O 60
Coaxial gearheads
TP + 2000/4000: Please contact WITTENSTEIN alpha
Intermediate diameters possible in combination with a bushing
with a minimum thickness of 1 mm.
B5/V3
Output shaft, horizontal
Motor shaft upwards
B5/V1
Output shaft, horizontal
Motor shaft downwards
V1/B5
Output shaft, vertical
Motor shaft, horizontal
V3/B5
Output shaft, vertical, upwards
Motor shaft, horizontal
B5/B5
Output shaft, horizontal
Motor shaft, horizontal
Right-angle gearheads
For information purposes only – not required
when placing orders!
Permitted standard mounting positions for right-
angle gearheads (see illustrations)
If the mounting position is different, contact
WITTENSTEIN alpha
Output side A:
View of motor interface
Only valid for VDS + , VDSe
and VDT +
Output side B:
View of motor interface
Only valid for VDS + , VDSe
und VDT +
Mounting position (only relevant for oil volume)
For VDH + , VDHe and VDS + /VDSe with Dual-shaft output, A and B must be replaced with 0 (zero).
Worm gearheads
Premium Class + and Value Class pinion
Premium Class RTP and Standard Class RSP pinions
Order information
Rack and assembly jig
Length
100 = Assembly jig (module 2 – 3)
156 = Assembly jig (module 4 – 6)
480 = Smart Class (module 2 – 4)
167/333 = Premium Class (module 2)
250 = Premium Class (module 3)
500 = Premium Class (module 2 – 6)
1000 = Value Class (module 2 – 6)
Version
PA5 = Premium Class
HE6 = Performance Class
VB6 = Value Class
PD5 = Assembly jig
Module
200 = 2.00
300 = 3.00
400 = 4.00
500 = 5.00
600 = 6.00
Rack type
ZST = Rack
ZMT = Assembly jig
Number of teeth
(see technical data sheet)
Version
PC5 = Premium Class
VC6 = Value Class
Module
200 = 2.00
300 = 3.00
400 = 4.00
500 = 5.00
600 = 6.00
Designation
RMT = Pinion mounted ex
works
RMX = Pinion mounted
offset 180°
(for VC pinions only)
Designation
RSP = Standard Class RSP
pinion for SP
Involute output as per
DIN 5480
RTP = Premium Class RTP
pinion for TP output
RTPA = Premium Class RTP
pinion for TP High
Torque output
Module
A02 = 2.00
A03 = 3.00
A04 = 4.00
A05 = 5.00
A06 = 6.00
Tolerance class
5e24 = Premium Class RTP/
RTPA
6e25 = Standard Class RSP
Gearhead size
For SP output:
060, 075, 100, 140, 180,
210, 240
For TP output:
004, 010, 025, 050, 110,
300, 500
(see technical
data sheets)
Number of teeth
(see technical data sheet)
Torque limiter, bellows coupling and elastomer coupling
Internal diameter D 1
(drive side)
TL1: D 1 = D 2
BCT: D 1 = Output side
Disengagement torque
Torque limiter
T Dis [Nm]
(see technical
data sheets for torque
limiter)
Bore version D 2
0 = Smooth
1 = Key shape A
DIN 6885
2 = Involute DIN 5480
(on request)
3 = Key shape A
ANSI B17.1
A = Hole circle
BCT HIGH TORQUE
Torque limiter (TL)
adjustment range
A = First series
B = Second series
C = Third series
D = Fourth series
(for TL1 only)
Internal diameter D 2
(output side)
TL1: D 1 = D 2
BCT: D 2 = TP + flange
hole circle
Bore version D 1
0 = Smooth
1 = Key shape A
DIN 6885
2 = Involute DIN 5480
(on request)
3 = Key shape A
ANSI B17.1
Series
(see technical data sheets)
Torque limiter (TL) function
W = Single position (360°)
D = Multi-position (60°)
G = Load holding
F = Full disengagement
Metal bellows coupling
function (BC, EC)
A = Standard
B = incl. self-opening clamp
system (EC2)
Elastomer coupling function (EL)
A = Standard
Length option
A = First length
B = Second length
Elastomer ring option
A = 98 Sh A
B = 64 Sh D
C = 80 Sh A
Model
Torque limiter
TL1 / TL 2 / TL3
Metal bellows coupling
BCT  /  BCH  /  BC2  /  BC3  /
EC2
Elastomer coupling
ELC / EL6
442
R T P A 0 2 5 – A 0 2 – 5 e 2 4 – 0 4 0
Order codes
Rack type Version Length Module
Premium Class + and Value Class pinion
Designation Version Number of teeth Module
Premium Class RTP and Standard Class RSP pinions
Designation Module Number of teeth Gearhead size Tolerance class
Z S T _ 2 0 0 – P A 5 – 5 0 0
R M T _ 2 0 0 – V C 6 – 1 8
Torque limiter
Bellows coupling
Elastomer coupling
T L 1 – 0 0 0 1 5 A W 1 6, 0 0 0 – 1 6, 0 0 0 – A 0 0 1 6
B C T – 0 0 0 1 5 A A 0 1 2, 0 0 0 – 0 3 1, 5 0 0
E L C – 0 0 0 2 0 A A 0 1 5, 0 0 0 – 0 1 6, 0 0 0
Model
Model
Model
Series
Series
Series
Length option
Length option
Elastomer ring option
Function
Function
Function
D 1  Internal diameter, drive
D 1  Internal diameter, drive
(for BCT: Output)
D 1  Internal diameter, drive
Bore version D 1
Bore version D 1
Bore version D 1
D 2  Internal diameter, output
D 2  Internal diameter, output
(for BCT: TP + flange hole circle)
D 2  Internal diameter, output
Bore version D 2
Bore version D 2
(for BCT Standard: 0)
(for BCT HIGH TORQUE: A)
Bore version D 2
Adjustment
range
Disengagement
torque T Dis
443
Technical changes reserved
WITTENSTEINalpha_Components_&_Systems_Catalog_en_2015_I
WITTENSTEIN alpha – inligent drive systems
alpha
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