Product Description:

The F46GEBA-R4-NS-NV-00 is a brushless servo motor manufactured by Pacific Scientific and supplied in the F Servomotors series. It is intended for precision rotary positioning and speed regulation in automated machinery where repeatable motion profiles are required for packaging stations, pick-and-place heads, or light machining spindles. By combining electronic commutation with permanent-magnet excitation, the unit delivers consistent torque without brush wear and integrates readily with digital servo drives used throughout industrial automation. This arrangement suits machines that need repeatable starts, stops, and short positioning moves over long service intervals.

The motor can sustain a continuous stall torque of 61 lb-in, which is the load it can hold continuously without overheating. A frame width of 4.25 inches sets its mounting envelope for English-dimensioned flanges, and the standard configuration keeps shaft and flange geometry in line with legacy Pacific Scientific layouts. For rapid indexing, the electromagnetic system can reach a peak torque of 155 lb-in. Torque production rises with current at a constant of 11.0 lb-in/A, and the generated back EMF follows a voltage constant of 130 V/Krpm, which helps with drive sizing and velocity loop tuning. A ferrite magnet set with a stack length code of 6 provides the magnetic flux, and the assembly uses no secondary feedback because commutation sensing is handled through the primary resolver or encoder used by the drive. Mounting hardware follows the English shaft standard, which helps with coupling selection.

A factory-installed holding brake rated at 100 V draws only 0.22 A and delivers a static holding torque of 72 lb-in, allowing vertical axes to remain locked when power is removed. The housing meets IP65, which protects the motor against dust and low-pressure water jets. No shaft seal is present, so the coupling area should be protected from direct fluid spray in wet installations. Total mass is 27.4 lbs, which keeps the motor manageable for gantry or robotic arm mounting while still supporting stable motion during acceleration and deceleration. The brake and enclosure features make the unit suitable for controlled motion systems that need holding capability and a sealed housing.