Product Description:

The R8AHENA-R2-NS-NV-00 is a servo motor manufactured by Pacific Scientific for the R Servomotors series. Supplied in a standard housing, the unit converts drive-amplifier current into precise rotary motion for automated conveyors, pick-and-place arms, and other position-controlled axes. Closed-loop control over speed and position is achieved when the motor is paired with a compatible drive, making it suitable for repeatable, high-cycle automation tasks. Its standard housing also suits general industrial installations that use separate motor and drive components.

The motor has a continuous stall torque of 53.4 Nm, which enables it to hold loads steadily without overheating. When rapid acceleration is required, it can generate a peak torque of 109 Nm for short intervals, allowing fast index moves before returning to continuous limits. The winding supports a rated speed of 2600 rpm, so full torque is available throughout typical machine spindle and transfer-axis ranges. Rotor inertia is 10.8 kg·m²×10⁻³, which balances responsiveness with load matching and helps prevent oscillation in high-gain servo loops. Position data is supplied by a frameless resolver of transmitter type in size 21, eliminating the need for optical encoders while supporting accurate rotor feedback. No secondary feedback device is fitted, so the drive relies entirely on the primary channel for commutation and regulation.

The motor has a 7.5" Square frame and an overall stack length of 10 inches, giving it a compact footprint while still providing the required torque density. Rare earth (samarium cobalt) magnets raise flux density and support the motor’s High Speed winding during elevated thermal cycles. English mounting dimensions suit equipment built around inch-based machine layouts. The shaft end is supplied without a brake and without a shaft seal, so external components must be selected when static holding torque or ingress protection is required.