Product Description:

The R45GCAA-R2-NS-NV-00 is manufactured by Pacific Scientific as part of the R Servomotors series. This brushless servo motor supplies closed-loop rotary motion for automated machinery where accurate positioning, velocity regulation, and repeatable duty cycles are required. Its standard housing style is built around a 4.25-inch square frame that suits compact drive spaces on conveyors, pick-and-place systems, and small gantry axes. It is intended for machines that need predictable motion during repetitive indexing and transfer tasks.

During continuous operation the motor can deliver 5.7 Nm of stall torque, while short bursts can reach a peak of 15.1 Nm. These values indicate the available continuous and peak torque for the motor. Dynamic behavior is influenced by a rotor inertia of 0.31 × 10⁻³ kg·m², giving a balance between fast acceleration and speed stability. This balance helps the axis respond quickly to command changes while remaining stable through normal speed transitions. The motor uses a 4.25-inch square flange, and a NEMA Face mounting pattern permits direct attachment to gearboxes or machine plates without custom adapters.

A 24 V DC brake holds the shaft when power is removed, preventing drift on vertical axes or during emergency stops. The rotor uses samarium cobalt magnets, and the magnetic stack has a 5-inch stack length to increase torque without enlarging the frame. Position feedback to the drive is provided by a frameless, transmitter-type size 21 resolver, and no secondary feedback device is present. That feedback arrangement supports commutation and position monitoring without a second encoder. The motor has standard windings and ships without a shaft seal, so an external seal can be added only when it is needed for washdown or oil-splash environments.