Product Description:

The R46GSNA-SS-NS-VS-04 is a servo motor manufactured by Pacific Scientific as part of the R Servomotors series. It serves as a compact rotary actuator that delivers regulated torque and velocity for positioning tables, feed drives, packaging equipment, and other motion functions in automated cells. Connected to a digital drive, the motor receives command currents and responds with tightly controlled shaft movement, allowing machinery to reach programmed positions and maintain steady process speeds during repeated operating cycles.

Its continuous stall capability of 7.6 Nm is the load it can hold indefinitely once thermal equilibrium is reached, while the peak output of 20.2 Nm covers short acceleration bursts needed during indexing. System dynamic response is shaped by an inertia of 0.40 × 10⁻³ kg·m², giving moderate resistance to abrupt speed changes and helping stabilize servo response. A 4.25-inch square mounting footprint matches NEMA-style brackets, and the magnetic core extends over 6 inches of stack length to increase flux interaction without enlarging the frame. The rotor uses samarium cobalt rare-earth magnets, raising air-gap flux density so that the standard winding can achieve rated torque at lower current. A standard housing encloses the stator laminations and winding package, supporting compatibility with other motors in the series.

For applications that rely on external holding methods, the motor ships with no factory-installed brake, so power-off torque retention must come from mechanical locks or drive torque. Position data are handled solely by the primary encoder because there is no secondary feedback, which reduces cable count and simplifies wiring. A Viton shaft seal is fitted to limit lubricant migration into the bearing cavity and help keep contaminants away from internal components. The standard winding style is intended for general-purpose drive outputs used in common servo applications.