Product Description:

The SS700E is a permanent-magnet stepping motor manufactured by Danaher in the Slo-Syn Synchronous Motors series. It functions as an open-loop drive element that indexes machine axes at a fixed position increment during each half-cycle of the mains supply, making it practical for conveyors, feed screws, and timing wheels in industrial automation environments. It operates as a synchronous unit that locks its rotor to the applied line frequency, so motion accuracy depends on power-line stability rather than encoder feedback. This operating characteristic simplifies control circuits in packaging, printing, and material-handling equipment.

With a rated supply of 120 VAC, the single-phase winding draws 1.1 A from a 60-hertz mains source. A split-phase network consisting of a 12.5 µF run capacitor and a 150 Ω series resistor establishes the quadrature phase shift required for synchronous locking. Under these conditions, the motor develops a minimum holding torque of 700 oz-in while maintaining a shaft speed of 72 rpm. The 0.42 oz-in-s² load inertia value indicates how much rotating mass can be driven without losing step alignment. Electrical timing is referenced to 60 Hz, so speed stability reflects the quality of the incoming utility power. Installation uses a 3.000-inch bolt circle that aligns the faceplate with common gear reducers.

For mechanical integration, the cylindrical body is limited to 6.99 in in overall length and has a frame diameter of 4.23 in. The shaft can accept up to 50 lb of axial thrust and 25 lb of radial side load, supporting belt drives or spur gears without additional bearings. The total motor mass is 15.5 lb, which must be considered when selecting mounting plates and supporting hardware. The rear shaft extension provides a convenient attachment point for an encoder or manual handwheel. Its cylindrical housing can fit compact equipment layouts while leaving the output shaft accessible for direct coupling to the driven mechanism.