Product Description:

The R65HENA-TS-MZ-NV-00 servo motor is manufactured by Pacific Scientific as part of the R Servomotors series. It supplies controlled rotary power to industrial actuators, positioning stages, and other closed-loop motion axes. A stack length of 5 inches keeps the motor short, while the standard housing style supports straightforward panel or base installation. Inch-based mounting dimensions also allow direct installation on many North American brackets and couplings, which helps the motor fit existing machine layouts. This makes it suitable for packaging equipment, transfer units, and indexing mechanisms that need repeatable starts and stops.

The motor provides a continuous stall torque of 13.6 Nm, allowing the shaft to hold static loads without overheating. It can also deliver up to 33.3 Nm of peak torque during short acceleration events. The rated speed is 4300 rpm, and the reflected rotor inertia of 1.26 kg·m² × 10⁻³ helps the axis respond quickly during indexing and reversals. The combination of torque reserve and moderate inertia supports fast changes in command speed. Its 5.75-inch square frame gives the motor a clear mounting envelope for machine spacing and airflow around the housing.

Motion feedback is provided by a Tachsyn, which combines tachometer and resolver functions so the drive can monitor speed and position without a separate external encoder. Torque production is supported by rare-earth samarium-cobalt magnets, and a high-speed winding helps the motor operate effectively during fast cycling. The motor is supplied without a holding brake and with no shaft seal, so external load holding may be needed when the axis is stopped and the shaft area should remain free of liquids and heavy contamination. For wet or washdown areas, external protection would be required because the shaft opening is not sealed.