Established in 1964 and serving the needs of industrial OEMs, Oconomowoc Manufacturing is the largest privately held manufacturer of custom precision-machined bearings in North America. Related products we manufacture include Five-O-Mega™ chain-driven conveyor components and engineered assemblies. For higher-precision and higher-capacity bearing applications, we are an engineering industrial distributor of standard and custom ABEC precision-ground bearings and assemblies.

With more than 50 years of custom bearing engineering and manufacturing experience, 2,000 product designs and an extensive inventory, our combined experience is unparalleled when it comes to ingenuity, versatility, and reliability. ISO 9001:2008 certified and with all of our products backed by Midwestern character and accountability, our 85,000 square foot Oconomowoc, Wisconsin manufacturing facility is conveniently located in the American industrial belt and fueled by many of the finest craftsmen in the industry.