Product Description:

The R45HENA-NP-NS-NV-00 is a brushless AC servo motor manufactured by Pacific Scientific for the R Servomotors series. In automated machinery, it supplies controlled torque so position, velocity, and acceleration profiles follow the commands generated by the drive controller. The motor is supplied without an integral holding brake, and neither primary nor secondary feedback devices are factory installed, allowing external sensors to be selected to match the control architecture.

During continuous standstill, the motor can deliver 5.7 Nm, a level that permits static load holding without overheating. The envelope is kept compact by a 4.25-inch square frame, easing installation in tight multi-axis assemblies where mounting clearances are limited. Rare-earth magnets made from samarium cobalt supply high flux density, raising torque output while resisting demagnetization at elevated temperatures. Rotary dynamics benefit from an inertia of 0.31 kg·m²×10⁻³, enabling rapid speed changes with moderate drive current. The motor bolts to machinery using the English mounting pattern, and its housing is the standard style used in the series for a consistent external form.

For transient events such as acceleration, the motor can reach a peak of 15.1 Nm, giving extra headroom when loads momentarily exceed the continuous rating. The windings are optimized for a high-speed operating range, so commanded rpm can be elevated without loss of torque linearity. Electromagnetic length is established by a stack measuring 5 inches, balancing power density against thermal rise. Because there is no shaft seal, the motor should be used in environments where dust and fluid exposure are controlled. With a standard housing and no holding brake, the motor is intended for applications that rely on external mechanical restraints and clean ambient conditions.