Reliance B77Y9968S Gear Motor 129.7:1 Ratio 0.5 HP 1725 RPM 208-230 460V

Reliance B77Y9968S Gear Motor is a 0.5 HP, four-pole gearmotor designed for industrial three-phase service in 208-230/460 V systems. It pairs a standard 1725 RPM motor with a precision gear reducer offering a 129.7:1 reduction, yielding substantial torque at a low output speed. With a 60 Hz input, the output shaft speed is approximately 13.3 RPM, subject to load and efficiency. This configuration provides high torque in a compact package, suitable for drive tasks where slow, controlled rotation is required. The model is built to operate on either 208-230 V or 460 V three-phase power, offering flexibility for installation in facilities that run mixed voltage levels. The B77Y9968S designation identifies a specific Reliance Electric gearmotor variant, aligning with the brand’s line of four-pole, high-torque gearmotors. This gearmotor is commonly used in automated equipment and material-handling systems where a compact footprint and a reliable, consistent torque output are critical. Its four-pole design supports smooth startup and predictable torque across typical load conditions, helping equipment maintain steady performance.