Product Description:

The R63FSNA-HS-NS-VS-02 is a brushless servo motor manufactured by Pacific Scientific as part of the R Servomotors series. It is built to deliver closed-loop torque and speed regulation for indexing tables, packaging axes, and other position-controlled machinery in industrial equipment. By pairing a permanent-magnet rotor with an electronic drive, the motor converts electrical power into repeatable mechanical motion while maintaining the accuracy required for automated processes. This type of motor is well suited for applications that need responsive starts, controlled stopping, and stable operation across repeated motion cycles.

This model supplies a continuous stall torque of 8.3 Nm, meaning it can hold that load indefinitely without overheating when properly cooled. Rotor inertia is specified at 0.81 × 10⁻³ kg·m², and this low value lets the axis accelerate and decelerate quickly during frequent start-stop motion. The square frame measures 5.75" on each side, so the motor fits common mounting patterns used in compact machinery. Its rotor uses rare earth samarium cobalt magnets that provide high magnetic flux density and resist demagnetization at elevated temperatures. For short bursts such as rapid starts, the unit can reach a peak torque of 20.5 Nm, allowing temporary overload capacity during demanding motion segments. These characteristics make the motor suitable for systems that need fast response without giving up controlled torque output.

Primary position information is supplied by Hall sensors, and there is no brake, so holding force during power-off must be provided externally when the application requires it. A Viton shaft seal limits the ingress of coolant and dust at the output end, and the housing uses the standard style for this series. With a laminated steel stack length of 3 inches, the motor balances thermal mass and package size while maintaining rated torque. The unit does not include a secondary feedback channel, which keeps wiring simpler when commutation from the primary sensing method is sufficient. This layout supports straightforward integration in motion systems that use basic feedback and external holding methods.