Product Description:

The R43GE-A-R2-NS-NV-00 is a servo motor produced by Pacific Scientific as part of the R Servomotors series. Designed for closed-loop industrial automation, it provides controlled torque and speed so machine axes can follow programmed motion profiles with minimal position error. The motor is intended for applications that rely on feedback to correct speed and position errors as load conditions change during operation. This makes it suitable for packaging, indexing, and other motion-control equipment that needs repeatable response from a compact motor.

The motor delivers a continuous stall torque of 3.9 Nm, allowing it to hold loads without overheating during steady-state operation. Its frame is 4.25-inch square, giving it a compact footprint that fits standard NEMA-style mounts in packaging or material-handling equipment. At the rated speed of 1500 rpm, the winding and magnet system balance thermal rise with mechanical output for general-purpose duty cycles. For short accelerations, it can reach a peak torque of 10.4 Nm, giving the drive additional headroom during indexing or deceleration. Rotor inertia is 0.22 kg·m²×10⁻³, so the axis can respond quickly to command changes without excessive overshoot. The magnetic circuit uses samarium cobalt, a rare-earth material that resists demagnetization at elevated temperatures and helps maintain consistent torque density over long service life.

Primary position sensing is handled by a frameless resolver transmitter in size 21, which supplies analog sine-cosine signals for fine resolution while keeping the overall stack length to 3 inches. There is no shaft seal, so the motor is better suited to relatively clean environments or to installations that add external sealing hardware when fluids or dust are present. The housing style and winding designation are both standard, and the English mounting interface matches inch-based machinery. No secondary feedback device is fitted, so the drive must close the loop solely with resolver signals and the motor can be integrated without added feedback wiring.