Sherwood Electromotion Inc. (SEI) supplies new and remanufactured slip rings, delivers a complete range of slip ring services, and provides an extensive selection of replacement parts.

Slip rings, in electrical rotating machines, are mechanical devices that enable permanent contact between a wound rotating component and a stationary structure of an electrical machine. Slip rings are mounted on the shaft of a rotating component and are connected to the rotor’s winding, but are electrically insulated from the shaft.

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SEI's Slip Ring Scope of Supply

SEI's Scope of Supply offers a world-wide customer base the Optimal Choice and Value for slip rings, related Parts, and required Services.


SEI has dedicated engineering and manufacturing programs to ensure the availability of high quality parts and sub-assemblies.


SEI is proud to offer its customers a wide choice of standard and application specific services.

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