Magnetic disk couplings from Sterling Instrument (ISO 9001:2000+AS9100B Registered Manufacturer) feature no friction or wearing parts, use no electricity and no magnetic particles to leak. These units, identified as the S50DCM (inch) and S50DCMM (metric) Series, are stocked in eight different bore sizes ranging from .1875" to 1.000" (5 mm to 19 mm). The couplings consist of two opposing disk halves with rare earth magnets. The torque applied to one disk is transferred through an air gap to the other disk. Because of its flat design, one can have angular misalignment of up to 3 degrees or parallel misalignment of up to 1/4" and still transmit nearly full rotational torque.

These 416 stainless steel couplings incorporate an NdFeB, nickel plated magnet. The hub sections are offered singularly and with or without a keyway. They are fastened to shafts with an included set screw. The coupling O.D. ranges from 1.72" to 2.86" (43.7 mm to 73 mm). Other features include repeatable torque control and no friction, since there is no physical contact between driving and driven parts.

Applications include material handling such as for conveyor belts, film transport, capping of syringes or bottles, shrink wrapping, constant wire tension coil winding and film tensioning. Quotes, online orders and 3-D CAD Models are available at www.sdp-si.com/eStore.

Detailed specifications are contained in Catalog D795, available free upon request from Sterling Instrument.