Innovation in Motion


Standard ABEC Bearings
Product Solutions
Custom, Non-Standard, Special Bearings

Established in 1964 to serve the needs of industrial OEM motion requirements, Oconomowoc Manufacturing is the largest privately held manufacturer of custom precision-machined bearings in North America. With over 2000 designs, related products we manufacture both domestically and in dedicated offshore facilities include Five-O-Mega™ chain-driven conveyor components, architectural casters, metal and polymer components, and engineered assemblies. For higher-precision and higher-capacity bearing applications, and utilizing this same 55 year bearing pedigree, we also provide unmatched value on standard and custom ABEC precision-ground bearings and assemblies.

Latest News 

COVID-19 Response

December 2020


Please click below to view the latest information available regarding OMCo's COVID-19 response. This page will be updated with all developments regarding policy and disruption.

Custom Hubless Casters

Google Rolls with OMCo

April 2018


When Google wanted to reinvent the wheel (and the whiteboard), they turned to OMCo for a custom, high-performance architectural caster utilizing and improving upon our patented hubless wheel design.