Product Description:

The R46GSNA-TS-NS-NV-11 belongs to the R Servomotors series from Pacific Scientific and serves as a rotary actuator for closed-loop motion axes in industrial automation. By converting controlled electrical power into mechanical rotation, this servo motor enables precise positioning of machine components such as pick-and-place arms, indexing tables, or packaging spindles. It is suited to applications that require repeatable torque delivery and compact mounting.

The electromagnetic package provides a continuous stall capability of 7.6 Nm, which is the torque the motor can deliver indefinitely without exceeding its thermal limits. When rapid acceleration is demanded, the drive can momentarily rise to a peak torque of 20.2 Nm, allowing it to overcome inertial loads before settling at operating speed. The square mounting frame measures 4.25 inches on each side, simplifying flange interchange within standardized mechanical layouts. A stack length of 6 inches increases the active iron volume without changing the footprint. Rotor inertia is limited to 0.40×10⁻³ kg·m², giving the axis quick dynamic response while still providing sufficient damping for servo stability.

The motor housing follows a standard configuration to fit common brackets, and the magnets are made from rare-earth (samarium cobalt) material, which sustains magnetic flux at elevated temperatures for consistent torque density. Primary velocity feedback is supplied through a Tachsyn transducer that combines tachometer and resolver functions in a single package, eliminating the need for a secondary sensor. The motor has no brake for power-off holding, and the shaft exits the enclosure with no shaft seal, so external contamination control must be managed by the machine design. The winding and housing styles are standard, and no secondary feedback channel is present, keeping the electrical interface straightforward for drive amplifiers that accept Tachsyn input.