Product Description:

The F45FENA-R2-NS-NV-00 is a brushless servo motor produced by Pacific Scientific for the F Servomotors series. In automated cells it delivers commanded rotary motion to ball screws, gearheads, or direct-drive axes. The unit follows the standard mechanical configuration of the range, employs English mounting dimensions, and is assembled without secondary feedback devices to keep wiring simple. A magnet stack length of 5 is integrated inside its frame, and the housing is built without a shaft seal to minimize drag in clean-area installations.

Under continuous duty the motor sustains 46 lb-in of stall torque, keeping fixtures locked against load while thermal limits are respected. For rapid indexing it can momentarily reach 117 lb-in, giving motion controllers headroom before current limiting occurs. The winding produces 16.3 lb-in/A, so every ampere from the drive has a predictable mechanical result. Back-EMF rises at 193 V/Krpm, a figure that guides bus voltage and protective hardware choice. With a body that measures 4.25 inch across the mounting face, the motor occupies little panel depth yet still provides adequate rotor diameter for the torques above. This combination supports compact axis layouts that still require substantial torque.

The envelope described is carried by a mass of 22.0 lbs, which moderates acceleration while adding mechanical damping to equipment frames. Because the motor is supplied without a holding brake, power-off position retention must come from the drive or an external clamp. Environmental ingress is resisted by the IP65 rating, permitting operation in dusty or splash-prone zones when the shaft end is properly guarded. Magnetic flux comes from ferrite material, which supports the stated voltage constant and resists demagnetization under normal heat rise.