Product Description:

The R63AEAH-R2-NS-NV-00 belongs to the R Servomotors series manufactured by Pacific Scientific. It is an AC servo motor used in industrial automation to provide closed-loop rotary positioning and speed control on machine tool axes, pick-and-place heads, and similar motion tasks. By combining rare-earth magnetic materials with resolver feedback, the motor converts drive current into proportional torque, allowing the control system to maintain commanded motion even when load conditions change quickly during operation. This type of response is useful on axes that require repeatable starts, stops, and speed changes during normal production cycles. Because the motor is intended for closed-loop use, the drive can continuously correct position and speed errors as the machine cycle changes.

This model delivers a continuous stall torque of 8.3 Nm, which is the steady torque it can hold without overheating, while its peak torque reaches 20.5 Nm for short acceleration bursts. Rotor inertia is 0.81 × 10⁻³ kg·m², which supports quick speed changes and helps limit overshoot during rapid moves. The magnetic circuit uses rare-earth samarium cobalt material, improving torque density and thermal stability compared with ferrite designs. A 24 V DC brake is fitted to lock the shaft during power loss and help prevent back-driving on vertical or indexing axes, so the motor can remain stationary when drive power is removed. That combination of torque capability and moderate inertia supports frequent indexing and reversing in automated motion systems.

The motor uses a 5.75-inch square frame that aligns with NEMA mounting dimensions, and the flange uses an English bolt pattern. Primary position sensing is supplied by a frameless resolver mounted at the rear, and no secondary feedback device is included, which keeps the feedback arrangement straightforward. The motor has no shaft seal, so the output end should be protected from fluid ingress in wet or splash-prone locations. The stack depth is 3 inches, which helps keep the housing compact for machinery with limited installation space and tight motor clearances. The square frame format also fits machine layouts that rely on standard face-mount geometry.