Product Description:

The R63GENA-NP-RW-VS-02 is a brushless servo motor produced by Pacific Scientific as part of the R Servomotors series. Within automated machinery, it functions as a torque-controlled actuator. It converts commanded current from a drive into precise angular displacement. This allows indexing tables, conveyors, and pick-and-place heads to reach target positions quickly and repeatably during normal motion cycles.

The motor sustains a continuous stall torque of 8.3 Nm, allowing the shaft to hold static loads for long periods without exceeding thermal limits. When rapid acceleration is required, it can momentarily develop a peak torque of 20.5 Nm so inertial loads can overcome static friction. The motor has a rated speed of 3400 rpm, which is the maximum continuous operating velocity under nominal voltage and frequency. Dynamic response is influenced by a rotor inertia of 0.81 kg·m² × 10⁻³, and this moderate inertia supports quick acceleration with stable speed control. The electromagnetic circuit uses rare earth samarium cobalt magnets, providing high energy density that keeps the frame compact while maintaining torque output across a wide temperature range.

The frame measures 5.75 inches square and follows the English mounting pattern for direct replacement on existing brackets. A Viton shaft seal limits oil and dust ingress at the output end, supporting installation in mild industrial environments matched to the motor’s standard housing. The active magnetic stack is only 3 inches long, which shortens the overall package and helps minimize overhung load on the driven equipment. Because the unit is supplied with no holding brake, vertical axes require drive torque or an external mechanical lock when power is removed. This arrangement also reduces rotor mass and improves acceleration in horizontal applications.