Pancake slip rings

Pancake or “platter” type slip rings are in a flat disk form with concentric conductor rings to provide a maximum number of conductor rings within a minimum amount of axial length.

Pancake slip rings are custom designed and manufactured by The Sibley Company to meet the exact electrical, mechanical and operating conditions for each specific application. Slip rings of this type can be supplied as a set consisting of a slip ring and a mating brush block assembly or as fully self contained unit with internal bearings.

Pancake slip rings can be supplied from less than 1 inch (25 mm) in diameter to over 4 feet (1225 mm). Through bore diameters are determined by the ring band width needed to accommodate shafts or other internal center structures. Electrical channels can be low current signals or high Amp power channels with combinations of both determined by the electrical and mechanical considerations which are subject to constraints of the customers application.

Send us an inquiry about the pancake slip rings you need manufactured.


Our products are made in the U.S.A. and our production lead times range from 4 – 10 weeks depending upon slip ring complexity and after design completion.

Put our slip ring expertise to work for you! We are your slip ring specialists.