Product Description:

The R45GCAA-R2-NS-VS-00 is a servo motor manufactured by Pacific Scientific and supplied as part of the R Servomotors series. Within an automation cell, this motor receives commanded current from a digital drive and converts it into proportional shaft torque. That operating principle supports tight speed and position regulation on gantries, index tables, and packaging spindles where repeatable rotary motion is required.

The motor can sustain 5.7 Nm of continuous stall torque, meaning it resists load without motion whenever the drive maintains rated current. When rapid acceleration is required, it delivers a peak torque of 15.1 Nm, a short-duration limit used for overcoming inertia and friction. Dynamic response is supported by a rotor inertia of 0.31 kg·m² × 10⁻³, which helps the drive react quickly to changing commands. The housing uses a 4.25-inch square frame, and the motor has a NEMA face mounting pattern for attachment to compatible brackets or gearboxes. Rare-earth samarium-cobalt magnets provide strong air-gap flux, and a standard winding supports stable torque production during continuous operation. The housing style is standard, matching the usual enclosure proportions used in this motor line.

For load holding during power loss, the motor includes a 24 V DC brake that engages automatically and releases when power returns. A Viton shaft seal helps block lubricant leakage and airborne contaminants at the output end, supporting cleaner operation around the bearings. Primary feedback is provided by a frameless resolver, transmitter type, size 21, which sends analog position data to the controller, and there is no secondary feedback channel. The laminated stator stack is 5 inches long, giving the motor an active magnetic length that supports its thermal capacity. No additional cooling ports are included because the standard housing dissipates heat generated by the winding during continuous duty.