Welcome to Tri-State Bearing Company, Inc. Ball & Roller Bearings, V Belts, Sheaves, Pulleys, Idlers, Sprockets, Roller Chain, Clutches, Brakes, Couplings, Cylinders, Oil Seals, Retaining Rings, Speed Reducers, Gearmotors, Electric Motors, Tools, Lubricants & Supplies Tri-State Bearing is a leading distributor of bearings, mechanical power transmission, and motion control products in Indiana, Southern Illinois, and Western Kentucky. Contact us to find the right product for your application.