Shaft loads - axial and radial – Rockwell Automation 1329L AC Induction Motors User Manual User Manual
Page 13

AC Induction Motors
13
Table C
Constants for Calculating the Minimum Sheave Diameters for V-Belt Drives
Shaft Loads - Axial and Radial
These motors are suitable for limited shaft loads as shown in Tables
and
. Recommended maximum thrust loads depend on the mounting
position, either horizontal or vertical. For recommendations for loads
in excess of those shown, contact Allen-Bradley.
Table D
Axial Thrust Capacity - No Radial Load
1
Thrust capacity for vertical mounting includes a constant whose value is plus or minus depending on the direction of the thrust load. The constant is plus for thrust loads
acting upward against the force of gravity and minus for loads acting downward with gravity.
Frame
Units
“V”
Dimension
Constant
Base RPM
850
1150
1750
2500
L210
inches
3.50
A
40.6
30.0
19.77
14.63
B
7.26
5.43
3.56
2.09
millimeters
88.9
C
1384
1022
674
499
D
9.73
7.28
4.77
2.80
L250
inches
4.00
A
23.33
18.25
12.67
9.47
B
3.58
2.3
1.17
0.57
millimeters
101.6
C
795
622
432
323
D
4.80
3.08
1.57
0.76
L280
inches
4.50
A
20.28
16.17
11.2
8.32
B
2.94
1.75
0.84
0.43
millimeters
114.3
C
691
551
382
284
D
3.94
2.35
1.13
0.58
L320
inches
5.00
A
18.47
14.25
9.97
–
B
2.00
1.24
0.59
–
millimeters
127.0
C
630
486
340
–
D
2.68
1.66
0.79
–
UL360
inches
6.25
A
10.42
8.08
5.89
–
B
0.46
0.25
0.13
–
millimeters
158.8
C
355
275
201
–
D
0.62
0.34
0.17
–
UL400
inches
8.00
A
8.9
6.9
4.8
–
B
0.30
0.23
0.16
–
millimeters
203.2
C
303
235
163
–
D
0.40
0.31
0.21
–
Frame
Units
Horizontal Mounting
Vertical Mounting
2500 RPM
1750 RPM
1150 RPM
850 RPM
2500 RPM
1750 RPM
1150 RPM
850 RPM
L180
pounds
430
500
600
675
430
±60
500
±60
600
±60
675
±62
kilograms
195
227
272
306
198
±27
227
±27
272
±27
306
±27
L210
pounds
477
551
662
742
498
±61
564
±61
676
±61
756
±61
kilograms
217
251
301
338
227
±28
257
±28
308
±28
344
±28
L250
pounds
509
600
722
828
541
±86
629
±86
755
±86
865
±86
kilograms
231
272
327
376
245
±39
285
±39
342
±39
392
±39
L280
pounds
590
700
850
975
644
±122
754
±122
905
±122
1038
±122
kilograms
268
318
386
442
292
±56
342
±56
411
±56
471
±56
L320
pounds
705
835
1020
1170
770
±175
905
±175
1095
±175
1250
±175
kilograms
320
379
463
531
349
±80
411
±80
497
±80
567
±80
L360
pounds
875
1075
1350
1525
830
±293
1020
±293
1300
±293
1475
±293
kilograms
397
488
612
692
376
±133
463
±133
590
±133
669
±133
L400
pounds
1350
1630
2000
2250
1470
±352
1820
±352
2210
±352
2475
±352
kilograms
612
740
908
1021
667
±160
826
±160
1003
±160
1123
±160
L440
pounds
1300
1550
1800
2050
1365
±1085
1600
±1085
1865
±1085
2080
±1085
kilograms
590
703
816
930
619
±492
726
±492
846
±492
943
±492