Product Description:

The R33HENA-R2-NS-NV-00 is a servo motor built by Pacific Scientific within the R Servomotors series. It is intended for closed-loop motion control where rapid acceleration, repeatable velocity, and precise position are required in industrial automation cells. When paired with a compatible drive, the unit supplies continuous rotary power to conveyors, rotary actuators, and other loads that require coordinated electronic gearing. Its configuration suits machines that need fast response and stable control during repeated motion cycles.

Its continuous stall torque is 2.5 Nm, so the shaft can hold that load at zero speed when adequate cooling is available. For short bursts, it produces a peak output of 6.54 Nm, which supports fast index moves without requiring a larger frame. A rated speed of 6000 rpm supports high throughput when the motor is coupled to gear reductions or direct-drive joints. Rotor inertia is held to 0.093 kg·m² × 10⁻³, which helps the servo loop change speed quickly with less demand on the amplifier. Torque density is increased by rare earth (samarium cobalt) magnets that resist demagnetization during elevated temperatures and high-acceleration duty.

The frame measures 3.25 in square, which suits compact machine layouts, and the mounting pattern follows the English configuration used for the series. Inside, a High Speed winding lowers the electrical time constant so commanded current reaches its target quickly. The laminated stack is only 3 inches long, which helps keep the motor compact and reduces overhung load on the bearings. Primary position data comes from a frameless resolver size 21, and no secondary transducer is installed. The motor comes without a holding brake and without a shaft seal, and it uses the standard housing style for fanless, cabinet-mounted installations.