Product Description:

The SS702E is a single-phase synchronous stepping motor produced by Danaher within the Slo-Syn Synchronous Motors series. Designed for positioning or low-speed rotation in conveyors, indexing tables, and metering pumps, the motor maintains a constant speed when driven directly from the mains, removing the need for an external drive. Its construction includes a rear shaft extension for coupling to an encoder or handwheel and a front shaft suited for keyed hubs. The combination of internal reluctance and permanent-magnet fields provides the start-and-stop repeatability required in industrial automation.

The motor draws a line current of 0.55 A when connected to a nominal 240 VAC single-phase power supply. Under that electrical input, it produces a minimum torque of 700 oz-in, providing sufficient torque margin for indexing applications. With its fixed 20-pole geometry, the rotor turns at 60 rpm on a 50 Hz network and reaches 72 rpm on a 60 Hz network, allowing the supply frequency to determine operating speed. A reflected inertia of 0.42 oz-in-s² at 60 Hz supports controlled acceleration without excessive overshoot. The 6.99 in body length provides the magnetic path needed to sustain pull-in torque during operation.

The housing has a diameter of 4.23 in and seats against a 2.186 in pilot, while its 3.000 in mounting bolt circle accommodates NEMA 34 accessories. The front shaft measures 0.5000 in in diameter, and a rear shaft extension accommodates feedback devices or manual positioning hardware. The motor tolerates an axial shaft load of 50 lb and a radial shaft load of 25 lb, allowing it to support belt tension or end-thrust couplings without additional bearings. Its overall mass is 15.5 lb, which helps dampen vibration during operation. The available pilot, bolt circle, and shaft arrangement support installation with compatible geared reducers, timing-belt drives, and keyed couplings.