Sk 21e, sk 22 nema-c + w ratings & combinations – NORD Drivesystems B1000 User Manual
Page 135
www.nord.com
B133
G1000 – Subject to Change Without Notice
W + NEMA
Model
Type
Gear
Ratio
Output
Speed
Output
Torque*
Maximum input power
Solid input shafts type “W“
NEMA C-Face*
Available Combinations
i
tot
n
2
T
2 max
Input Speed
1750 rpm
1750 rpm 1150 rpm 875 rpm 580 rpm
[rpm]
[Ib-in]
[hp]
[hp]
[hp]
[hp]
56C
140TC 180TC 210TC 250TC 280TC 320TC 360TC
SK 21E
1.46
1199
531
5.00
3.30
2.50
1.65
X
X
X
1.85
946
566
5.00
3.30
2.50
1.65
X
X
X
2.08
841
602
5.00
3.30
2.50
1.65
X
X
X
2.42
723
646
5.00
3.30
2.50
1.65
X
X
X
2.71
646
681
5.00
3.30
2.50
1.65
X
X
X
3.09
566
549
4.93
3.25
2.46
1.63
X
X
X*
3.67
477
602
4.55
3.01
2.28
1.50
X
X
X*
4.60
380
496
2.99
1.97
1.49
0.99
X
X
6.40
273
575
2.49 1.64
1.25
0.82
X
X
X*
7.90
222
531
1.87
1.23
0.94
0.62
X
X*
10.20
172
354
0.97
0.64
0.48
0.32
X*
X*
SK 22
2.79
627
1018
5.00
3.30
2.50
1.65
X
X
X
3.53
496
1159
5.00
3.30
2.50
1.65
X
X
X
3.97
441
1230
5.00
3.30
2.50
1.65
X
X
X
4.62
379
1328
5.00
3.30
2.50
1.65
X
X
X
5.18
338
1407
5.00
3.30
2.50
1.65
X
X
X
5.79
302
1903
5.00
3.30
2.50
1.65
X
X
X
6.51
269
2018
5.00
3.30
2.50
1.65
X
X
X
6.86
255
2257
5.00
3.30
2.50
1.65
X
X
X
7.57
231
2177
5.00
3.30
2.50
1.65
X
X
X
8.48
206
2292
5.00
3.30
2.50
1.65
X
X
X
10.89
161
2805
5.00
3.30
2.50
1.65
X
X
X
12.20
143
2912
5.00
3.30
2.50
1.65
X
X
X
14.69
119
2982
5.00
3.30
2.50
1.65
X
X
X
16.75
104
3000
4.95
3.27
2.48
1.63
X
X
X*
20.03
87
2522
3.48
2.30
1.74
1.15
X
X
X*
23.74
74
2885
3.39
2.24
1.69
1.12
X
X
X*
24.73
71
2177
2.45
1.62
1.23
0.81
X
X
28.80
61
3310
3.20
2.11
1.60
1.06
X
X
X*
29.31
60
2584
2.46
1.62
1.23
0.81
X
X
34.69
50
3009
2.39
1.58
1.19
0.79
X
X
X*
35.55
49
2921
2.27
1.50
1.14
0.75
X
X
42.82
41
3009
1.96
1.29
0.98
0.65
X
X*
45.90
38
2584
1.56
1.03
0.78
0.51
X
X*
55.28
32
2832
1.44
0.95
0.72
0.47
X
X*
69.81
25
2328
0.92
0.61
0.46
0.30
X*
X*
86.30
20
2213
0.70
0.46
0.35
0.23
X*
X*
W
56C
140TC
180TC
SK 21E
49
44
53
62
SK 22
64
60
69
77
lb
SK 21E, SK 22
NEMA-C + W
Ratings & Combinations
* Caution - The motor power may exceed the gear unit’s mechanical torque capacity
The mechanical power limit of the solid input shaft type “W” may limit the reducer rating.
All ratings are mechanical. See page 14 for thermal considerations.