Product Description:

The R8AFENA-R2-NS-NV-00 is an AC servo motor produced by Pacific Scientific for the R Servomotors series. It converts drive current into controlled rotary motion for automated machinery, providing precise speed and position control when paired with a matched amplifier and feedback loop. The motor serves packaging lines, indexing tables, and material-handling axes where compact size and high torque density allow short cycle times without additional mechanical gearing.

The motor has a continuous stall torque of 53.4 Nm, allowing it to hold static loads without overheating when ventilation is limited. For transient events such as acceleration or impact loads, it can reach a peak output of 109 Nm for short intervals before thermal limits are approached. The rotor’s reflected inertia is 10.8 × 10⁻³ kg·m², which balances fast dynamic response with stable servo tuning when coupled to typical machine inertias. Mechanical integration follows a 7.5-inch square frame, so the mounting pilot and bolt circle match standard NEMA patterns in that size class. High energy density comes from a rare earth samarium cobalt permanent magnet set, which sustains magnetic flux at elevated temperatures and resists demagnetization under high current surges.

The motor body uses the series’ Standard housing and a stack length of 10 inches, providing the thermal mass and copper volume needed for the listed torque values. The motor uses an English mounting configuration, so thread sizes and bolt spacing conform to inch-based hardware. Position feedback is delivered by a frameless resolver transmitter in size 21 that is integrated at the rear, and no secondary sensor is installed. The motor is supplied without a holding brake and without a shaft seal, making it suitable for dry, clean enclosures where external mechanics or drive torque maintain load position during power-off conditions.