Product Description:

The SS451-1035 is a synchronous stepping motor manufactured by Danaher as part of the Slo-Syn Synchronous Motors series. Designed for fixed-ratio drive tasks, it converts utility power directly into regulated rotary motion, eliminating the need for a separate frequency inverter. The motor’s rotor aligns with the stator field created by the supply line, delivering repeatable position increments that are useful in indexing tables, labeling stations, and small conveyors. By locking its rotation to the electrical cycle, the product supports straightforward motion control in industrial equipment.

The motor is rated for a 120 VAC single-phase input and draws 0.8 A while operating at a utility frequency of 60 Hz. With the included 14 µF phase-shift capacitor, the stator creates a quadrature field that keeps the rotor synchronized at 72 rpm. Under this operating condition, the motor delivers a minimum running torque of 450 oz-in, enabling it to drive moderate-friction or belt-coupled loads without additional gearing. The low current draw helps reduce the required wiring size. Its fixed synchronous speed also simplifies timing calculations in machines connected to the same power source.

The shaft can sustain an axial load of 50 lb and a radial load of 25 lb, allowing overhung pulleys or thrust collars to remain within the bearing capacity. Dynamic behavior is governed by a reflected load inertia of 0.23 oz-in-s², allowing the rotor to start and stop predictably when line power is switched. The 0.3750 in steel shaft has a keyed section with a usable flat length of 1.00 inch for rigid coupling. Installation uses a 3.875-inch bolt circle with 0.223-inch holes centered on a 2.875-inch pilot. The motor weighs 6.5 lb, which keeps mounting hardware requirements moderate while providing a stable assembly for fixed industrial installations.