R43GEBA-R2-NS-NV-00 Pacific Scientific
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The Pacific Scientific R43GEBA-R2-NS-NV-00 is a servo motor from the R Servomotors series with a continuous stall torque of 3.9 Nm and a peak torque of 10.4 Nm. It has a 4.25 inch square frame size, standard winding type, and features a 100V DC holding brake. The motor uses rare earth samarium cobalt magnets and primary feedback is provided by a frameless resolver, transmitter type, size 21.
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Product Description:
The R43GEBA-R2-NS-NV-00 is a brushless permanent-magnet motor built by Pacific Scientific for the R Servomotors series. It is used in industrial automation systems that require accurate velocity and position control, connecting directly to digital drives that command packaging machinery, material-handling gantries, or light machining axes. A standard housing and an English mounting interface simplify mechanical integration with NEMA-style gearheads and existing base plates.
The motor delivers a continuous stall torque of 3.9 Nm, allowing it to support static loads without overheating while the drive maintains rotor lock. At the application’s duty point, it turns at a rated speed of 1500 rpm, balancing torque production with the winding’s thermal limits. For rapid indexing, the electromagnetic circuit can reach a peak torque of 10.4 Nm, providing short bursts of additional force to overcome inertia or friction. A compact 4.25-inch square frame concentrates this output and reduces the installation footprint in multi-axis assemblies. Rotor position is reported by a frameless transmitter-type resolver in size 21. This analog sensor provides absolute angular information over a full rotation, enabling the servo amplifier to maintain synchronous position and velocity control without incremental homing.
Dynamic response is aided by a rotor inertia of 0.22 kg·m² × 10⁻³, so acceleration commands create limited overshoot while the motor continues to damp load disturbances. An integrated 100 V DC brake secures vertical or safety-critical axes whenever power is removed. Torque is generated by a rare-earth samarium-cobalt magnet stack that maintains magnetic flux at elevated temperatures. The magnet stack is three inches long and is paired with a standard winding. The motor has no shaft seal, so it should be installed in a clean environment or behind external sealing hardware. The unit does not include secondary feedback, allowing the primary resolver to provide the rotor-position signal used by the connected drive.
