Radiation Hardened Motors Have Been Successfully Installed At:
Radiation Hardened Stepper Motors
15 Family Size - U Series
Individual Motor Specifications
| Model Number | RH-U15 |
| Drawing Number | list |
| Environment | VC |
| Motor | U15 |
| Pricing | RH-U15 |
| NEMA Frame Size | 15 |
| Number of Magnetic Stacks | 1 |
| Step Angle | 1.8 |
| Function | 2 phase hybrid |
| Steps/Revolution | 200 |
| Input Current Per Phase (series) (A) | 1.0 |
| Input Current Per Phase Parallel (A) | 1.8 |
| Inductance per Phase (mh) Ref | 2.39 |
| Accuracy Grade (%) | 3 |
| Holding Torque (oz-in) Min | 17 |
| Dynamic Torque (oz-in) Ref | 11 |
| Detent Torque (oz-in) Ref | 1.0 |
| Static Torque At Thermal Current {unipolar} (oz-in) | 15 |
| Static Torque At Thermal Current {parallel} (oz-in) | 17 |
| Static Torque At Thermal Current {series} (oz-in) | 18 |
| Thermal Current {unipolar} (A) | 1.05 |
| Thermal Current {parallel} (A) | 1.48 |
| Thermal Current {series} (A) | .75 |
| Single Coil Inductance (mH) | 3.50 |
| Single Coil Resistance (ohm) | 2.30 |
| Series Inductance (mH) | 14.00 |
| Series Resistance (ohm) | 4.60 |
| Bearing Type | Ball |
| Bearing Thrust Load (lbs) | 5.00 |
| Bearing Radial Load (lbs) | 10.00 |
| Bearing End Play (10-3 in) | 5.00 |
| Bearing Radial Play (10-3 in) | .70 |
| Shaft Radial Play Max | .0006 |
| Shaft End Play Max (1) | .005 |
| Rotor Inertia (oz-in2) Ref | .136 |
| Body Diameter (in) | 1.51 |
| Length (L) Max | 2.00 |
| Lead Wires (total) | 8 |
| Lead Length (in) | 12 |
| Weight (lbs) Max | 0.7 |
Options:
- Gearboxes
- Feedback Devices
- Brakes
- Cables and Connectors
- Temperature Sensors
Modifications:
- Keyways
- Custom Shafts
Speed/Torque (oz-in) Charts
Frequently Asked Questions (FAQ)
About Radiation Hardened Installations
Part Number Configurator
Select a Model with all Available Options
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.