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Frame 56 Planetary Gearboxes

Empire Magnetics Inc. prepares gearboxes to operate in the same environments as the motors and resolvers. We start with high quality planetary gearboxes. These units are selected to provide maximum torque capacity with the smallest practical volume. We then upgrade the materials construction and lubrication to meet the requirements of the environment.
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Specifications

Model Number Drawing Number Gear Ratio Backlash
(degrees)		 Min Eff (%) Gearhead Length (in) Weight
(lbs)		 Max Rated
Continuous
Torque (in-lb)		 Momentary Torque (in-lb) Reflected Inertia (oz-in2)
56P:3 G2500033 3 0.1 90% 7.39 28 5196 8087 26.67
56P:4 G2500033 4 0.1 90% 7.39 28 4946 7730 15.63
56P:5.5 G2500033 5.5 0.1 90% 7.39 28 4567 7137 8.30
56P:7 G2500033 7 0.1 90% 7.39 28 3888 6076 5.10
56P:10 G2500033 10 0.1 90% 7.39 28 2767 4150 2.49
56P:16 G2500034 16 0.17 85% 9.53 43 5396 8433 16.25
56P:22 G2500034 22 0.17 85% 9.53 43 5482 8567 8.61
56P:28 G2500034 28 0.17 85% 9.53 43 5542 8661 5.29
56P:40 G2500034 40 0.17 85% 9.53 43 5627 8794 2.58
56P:49 G2500034 49 0.17 85% 9.53 43 4273 6677 5.02
56P:55 G2500034 55 0.17 85% 9.53 43 5127 8012 2.49
56P:70 G2500034 70 0.17 85% 9.53 43 4328 6763 2.45
56P:100 G2500034 100 0.17 85% 9.53 43 2543 3814 2.42
56P:160 G2500035 160 TBA TBA TBA TBA TBA TBA TBA
56P:280 G2500035 280 TBA TBA TBA TBA TBA TBA TBA
56P:400 G2500035 400 TBA TBA TBA TBA TBA TBA TBA
56P:700 G2500035 700 TBA TBA TBA TBA TBA TBA TBA

Specifications - Right Angle

Model Number Drawing Number Gear Ratio Backlash
(degrees)		 Min Eff (%) Gearhead Length (in) Weight
(lbs)		 Max Rated
Continuous
Torque (in-lb)		 Momentary Torque (in-lb) Reflected Inertia (oz-in2)
56P:3-RA G2500036 3 0.1 90% 7.39 28 5169 8087 26.67
56P:4-RA G2500036 4 0.1 90% 7.39 28 4946 7730 15.63
56P:5.5-RA G2500036 5.5 0.1 90% 7.39 28 4567 7137 8.30
56P:7-RA G2500036 7 0.1 90% 7.39 28 3888 6076 5.10
56P:10-RA G2500036 10 0.1 90% 7.39 28 2767 4150 2.49
56P:16-RA G2500037 16 0.17 85% 9.53 43 5396 8433 16.25
56P:22-RA G2500037 22 0.17 85% 9.53 43 5482 8567 8.61
56P:28-RA G2500037 28 0.17 85% 9.53 43 5542 8661 5.29
56P:40-RA G2500037 40 0.17 85% 9.53 43 5627 8794 2.58
56P:49-RA G2500037 49 0.17 85% 9.53 43 4273 6677 5.02
56P:55-RA G2500037 55 0.17 85% 9.53 43 5127 8012 2.49
56P:70-RA G2500037 70 0.17 85% 9.53 43 4328 6763 2.45
56P:100-RA G2500037 100 0.17 85% 9.53 43 2543 3814 2.42

Gearboxes for stepper motors and brushless motors are designed for the accurate positional functions desired of such systems.
All of the planetary gearheads provide "in line" power transfer so there is no offset from the motor shaft to the output shaft of the gearhead.
Vacuum rated gearboxes have all the materials selected or replaced with items that are compatible with VC, VS, or VX grades. The VS and VX grades are cleaned in the same exacting fashion as other components of this vacuum level.
For VX grade we offer dry film lubrications as an option, while the vapor pressure is lower on dry film lubrications, the wear life is also lower. The application specifics must be considered to make the decision.
Planetary gearboxes are available for stepper motors from size 17 to size 65, adapted versions of these same gearboxes can be mounted to brushless servo motors as well.

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