Product Description:

Pacific Scientific manufactures the R45HEAA-RS-NS-NV-00 as part of its R Servomotors series. This brushless servo motor is intended for closed-loop motion axes where precise positioning and velocity regulation are required in automated assembly lines, pick-and-place gantries, and packaging equipment. By converting commanded current from the drive into proportional electromagnetic torque, the unit provides a direct mechanical interface between the electronic control system and the load.

The motor delivers a continuous stall torque of 5.7 Nm, which indicates the steady load it can hold without exceeding thermal limits. During rapid indexing or acceleration, it can momentarily reach a peak torque of 15.1 Nm, giving extra margin for overcoming inertia and friction. Rotor inertia is rated at 0.31 kg·m² × 10⁻³, which helps balance quick response with smooth speed regulation. The motor uses a 4.25-inch square frame, simplifying interchange with other NEMA-style actuators. Internally, a high-speed winding lowers inductance so the current loop can react quickly, and a standard housing style encloses the stator and bearings for general factory environments.

To secure the shaft when power is removed, the motor integrates a 24 V dc brake, which helps prevent drift on vertical or indexing axes. Axial length is limited to 5 inches of laminated stack, so the unit fits tight mechanical envelopes while still delivering the listed torque ratings. Rare-earth magnets made from samarium cobalt increase flux density and thermal stability, supporting high continuous duty cycles. Installation uses an English mounting interface, and the absence of a shaft seal reduces drag in dry environments where contamination ingress is not a concern. No secondary feedback device is provided, so position data relies solely on the primary encoder used by the matched drive.