Product Description:

The F43GENA-R2-NS-NV-00 is a brushless servo motor produced by Pacific Scientific within the F Servomotors series. In automated cells, it supplies closed-loop rotary power to gearheads, belt drives, or direct-coupled loads where rapid reversals and accurate tracking of motion profiles are required. The motor uses a primary resolver integrated into the stator and does not include a secondary feedback device. This arrangement supports precise speed and position control when the motor is paired with a compatible servo amplifier. English mounting dimensions also support compatibility with legacy hardware that uses inch-based mechanical interfaces.

The motor provides a continuous stall torque of 32 lb-in, allowing it to hold a constant load without overheating during steady operation. For short acceleration bursts, it can reach a peak torque of 81 lb-in, which gives inertia-limited axes additional short-term output. A square laminated frame measuring 4.25 inch across houses the windings and helps the motor fit into tightly spaced multi-axis layouts. The torque constant is 10.8 lb-in/A, while the voltage constant is 128 V/Krpm, so the selected drive must be electrically matched to the motor over its operating speed range. This combination of steady torque, short-term overload capability, and electrical response makes the motor suitable for repeated starts, stops, and direction changes. The motor is supplied with no holding brake, so static holding force must be provided by the drive or by external mechanical components when the axis is at rest.

A magnet stack length code of 3 and the use of Ferrite magnets balance output capability with thermal stability during cyclic duty. The housing is sealed to IP65, but there is no shaft seal, so that protection does not extend to the shaft interface. The configuration is standard, and the shaft follows the English sizing convention used on inch-based machinery. Because the motor has no integral brake, any stopping or holding requirement must be handled elsewhere in the machine design. The overall layout is suited to applications that need compact servo performance with resolver feedback and straightforward mechanical integration.