Product Description:

The R46GSNA-TS-NS-NV-08 is a brushless servo motor built by Pacific Scientific within the R Servomotors series. In automated machinery, the unit converts commanded current into controlled rotary torque, allowing axes to accelerate, decelerate, and hold position with tight feedback. It integrates with matched drives in material handling, packaging, and general motion systems where accurate speed and torque regulation are required. This operating role makes it suitable for positioning axes that need repeatable motion during starts, stops, and direction changes.

Its continuous stall torque is 7.6 Nm, which the motor can deliver indefinitely without exceeding its thermal rating when properly cooled. For transient acceleration or load spikes, it can generate up to 20.2 Nm, but that peak torque must be limited to brief duty cycles to avoid overheating. The square mounting flange measures 4.25-inch square, giving the motor a standardized footprint for direct replacement or retrofit. Rotor inertia is 0.40 kg m² × 10⁻³, balancing quick response with mechanical stability for mid-range load inertias. Magnetic flux is produced by samarium cobalt rare-earth magnets, which provide high energy density without enlarging the frame.

The active iron stack reaches 6 inches in length, providing additional winding volume while still fitting the chosen frame. Because the motor is supplied with no brake, any holding function must be achieved through drive torque or an external locking device during power-off conditions. Velocity feedback is furnished by the Tachsyn, an analog resolver-style transducer that sends real-time speed information to the drive for closed-loop control. With no shaft seal and a standard unvented housing, the design is intended for clean, dry enclosures where oil spray or coolant intrusion is not expected. A standard winding and the absence of secondary feedback keep the electrical arrangement straightforward and reduce overall system complexity.