Product Description:

The R46SENA-TS-ED-NV-02 servo motor is produced by Pacific Scientific and belongs to the R Servomotors series. Designed for closed-loop motion axes in packaging lines, material-handling gantries, and other automated stations, it transforms drive current into precise shaft rotation and torque. The unit serves as the primary rotary actuator that pairs with a digital drive to regulate position, velocity, and acceleration within industrial control architectures.

It delivers a continuous stall torque of 7.6 Nm, allowing the shaft to hold load without motion when energized. For rapid indexing, a 20.2 Nm peak torque margin supplies the extra impulse needed to overcome system inertia. A 4.25-inch square frame aligns with standard mounting patterns in motor plates and gearheads, while the rotor inertia is 0.40×10⁻³ kg·m², which supports responsive tuning and helps limit oscillation in belt or pulley drives. Flux is generated by rare earth samarium cobalt magnets that maintain strong field intensity and resist demagnetization at elevated temperatures. The motor uses English mounting dimensions, so the bolt circle, pilot, and thread sizes match inch-based hardware used in North American machinery.

Its stack length measures 6 inches, which increases the active iron and copper volume and raises continuous torque capacity without increasing the frame width. Tachsyn primary feedback combines tachometer and resolver functions, providing both velocity and absolute position data to the servo amplifier through a single transducer. The motor ships with no holding brake, so external braking or counterbalance is required for vertical axes. A standard housing is supplied, and there is no shaft seal, so the motor is best suited for relatively clean, dry environments where added ingress protection beyond the bearing shield is not required.