Established in 1964 in southeastern Wisconsin, Oconomowoc Manufacturing Corp. is one of the largest privately held manufacturers of custom unground bearings in North America. ISO9001:2008 certified, related products we manufacture include Five-O-Mega™ chain-driven conveyor components; precision-turned parts; Talma Fastener™ cold headed parts; and engineered assemblies often incorporating the above. For higher-precision and higher-capacity bearing applications, we offer the Oconomowoc ORA™ brand.