TRUSTED BY:
Arnold A.F.B.
Argonne National Labs
Boeing
CTA Space Systems
European Space Agency
J.P.L./Hughes
U.C. Santa Cruz, Lick Observatory
Los Alamos National Labs
Optical Coating Labs
NASA/Langley AFB
Smithsonian Observatory
Space Industries
U.C. Berkeley Space Sciences Lab
Stanford Linear Accelerator
Ontario Hydro, Canada
Tokai Works, Japan
Taiwan Nuclear Power Commission
Public Nuclear Commission, Japan
Materiel
Brookhaven National Labs
General Electric Nuclear Fuels Div.
Martin Marietta/Oak Ridge National Lab
Empire Magnetics
Frame 56 Planetary Gearboxes
Specifications
| 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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Government Projects & Defense Applications
Empire Magnetics has been awarded and completed US Navy contracts in excess of $100,000 as a prime contractor. The Cage code number assigned was OYMU1, CEC code 19665900H. As a subcontractor to RSI/Comsat, SAIC, Lockheed Martin, Westinghouse, General Electric and other prime contractors for the US Government, contracts in excess of $200,000 have been awarded and completed.
Nationwide & International Distributors for Specialty Motors & Complete Motor System Solutions
Empire Magnetics products are distributed by a nationwide and international network of motion control sales professionals. Your local distributor carries the drives and controls, and the accessories needed to build a complete motion control system.