Product Description:

The R65HEAA-R2-RM-NV-02 is a servo motor produced by Pacific Scientific within the R Servomotors series. Intended for closed-loop motion tasks, it follows velocity and position commands from a digital drive to move conveyor sections, feeders, or pick-and-place heads with repeatable accuracy. A frameless resolver transmitter installed inside the rear housing returns high-resolution rotor data, allowing the controller to reduce following error during rapid reversals and settle to the commanded position without overshoot. This arrangement supports smooth servo response in machinery that requires frequent starts, stops, and directional changes.

The motor’s continuous stall capability is 13.6 Nm, meaning it can hold a static load indefinitely without thermal overload when proper cooling air is present. During acceleration events it delivers up to 33.3 Nm of peak torque, giving the headroom needed for quick indexing or tensioning cycles. A high-speed winding permits a rated speed of 4300 rpm, so line speeds can be raised without gear reduction. Rotor inertia of 1.26 × 10⁻³ kg·m² balances responsiveness with stability, staying low enough for fast start-stop sequences while still resisting load disturbances. Torque production is supported by rare earth samarium cobalt magnets, which provide strong magnetic flux and good thermal stability.

Mechanical integration is aided by a 5.75-inch square frame that aligns with standard NEMA bolt patterns, while the stack length of 5 inches keeps the package compact for tight machinery bays. The rotor is held during power-off by a 24 V DC brake, which helps prevent drift on vertical axes or other loads that must remain in place when drive power is removed. Because there is no shaft seal, the motor is better suited to clean areas or applications that isolate contaminants at the coupling or gearbox. A standard housing and inch-based mounting threads support installation on equipment that uses U.S. customary hardware.