6–1
SPECIFICATIONS
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GMA-BL
MI 1-916 1 B
English units
Table 6. GMA-BL Thrust and speed selection table, English units
Model
GMA
-BL
-1
-1
GMA
-BL
-1
-2
GMA
-BL
-1
-3
GMA
-BL
-1
-4
GMA
-BL
-1
-5
GMA
-BL
-1
-6
GMA
-BL
-1
-8
GMA
-BL
-2
-1
GMA
-BL
-2
-2
GMA
-BL
-2
-3
GMA
-BL
-2
-4
GMA
-BL
-2
-5
GMA
-BL
-2
-6
GMA
-BL
-2
-8
Specification
Gear Ratio
1
2.25
3
3.6
5.14
6
7.71
1
2.25
3
3.6
5.14
6
7.71
Max Motor Speed
(rpm)
2100
2100 2100 2100 2100 2100 2100 1800 1800 1800 1800 1800 1800 1800
Max Motor Torque
(oz-in)
38.9
38.9
38.9
38.9
38.9
38.9
38.9
50.7
50.7
50.7
50.7
50.7
50.7
50.7
Efficiency
0.84
0.84
0.84
0.84
0.84
0.84
0.84
0.82
0.82
0.82
0.82
0.82
0.82
0.82
Stall Thrust (LB)
64
144
192
230
328
383
493
81
183
244
293
418
488
627
Thrust Factor Note 3
0.72
0.72
0.72
0.69
0.69
0.69
0.69
0.72
0.72
0.72
0.69
0.69
0.69
0.69
Design Thrust (LB)
46
104
138
159
227
265
340
59
132
176
202
288
337
433
Max Load @ Friction
=0.06 (LB) Note 1
767
1726 2301 2646 3778 4410 5666
976
2195 2927 3366 4806 5610 7209
Max Load @ Friction
=0.10 (LB) Note 2
460
1035 1380 1587 2267 2646 3400
585
1317 1756 2020 2884 3366 4323
Max Load @ Friction
=0.25 (LB) Note 1
184
414
552
635
907
1058 1360
234
527
703
808
1153 1346 1730
Max Actuator Speed
(in/sec)
7.03
3.12
2.34
1.95
1.37
1.17
0.91
6.02
2.68
2.01
1.67
1.17
1.00
0.78
Max Line Speed
(ft/min) Note 4
6000
6000 6000 4750 2750 2100 1250 6000 6000 4900 3750 2100 1600
900
Max Stroke (in)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
Notes:
1)
The standard coefficient of friction is 0.06 for rolling bearings and 0.25 for sliding.
2)
Rolling coefficient of friction of 0.1 can be used for improved performance and life.
3)
Thrust factor based on belt drive versus gear drive, number of belts or gears and size.
4)
When guiding edge trimmed or previously guided rolls, use 2 times maximum line speed.
