Product Description:

Danaher produces the SS241T within its Slo-Syn Synchronous Motors series. The unit is a single-phase synchronous step motor intended for industrial automation tasks that require predictable low-speed rotation without electronic feedback. By locking its rotor to the line frequency, the motor delivers repeatable indexing for conveyors, metering pumps, and turntables where constant speed and positional integrity are necessary.

The electrical ratings show how the SS241T interfaces with control panels. It is designed for line supplies at 120 VAC, and the winding draws a steady 0.4 A, which simplifies fuse and drive sizing. Operation is synchronized to the North American utility standard of 60 Hz. At this frequency, the shaft reaches a synchronous speed of 72 rpm, completing one revolution approximately every 0.83 seconds. Minimum developed torque is specified at 240 oz-in, enabling the motor to maintain position against static process loads without stalling. The motor accepts a single-phase input but produces torque on every half-cycle by using an internal shading coil, allowing smooth rotation without external capacitors. The overall length of 4.05 inches keeps the package compact, and a terminal box simplifies field wiring inside enclosure layouts.

The frame follows the NEMA 34 outline, and the 3.88-inch bolt circle with 0.223-inch mounting holes lets the housing attach directly to standard gearheads or brackets. The ground-steel shaft has a diameter of 0.500 inch, permitting rigid coupling to sprockets or timing pulleys without reducers. Axial thrust capacity reaches 50 lb, while the radial load limit is 25 lb; these limits support moderate belt tension and vertical loads. Maximum reflected inertia is 0.10 oz-in-s², helping preserve step accuracy when the motor is coupled to light fixtures or cams. The assembled motor weighs 4.1 lb, easing installation on slide stages and mobile platforms without upsetting balance or increasing counterweight requirements.