Nature of Operations	12 Months Ended
	Jan. 02, 2021
Nature of Operations [Abstract]
Nature of Operations	Nature of OperationsRegal Beloit Corporation (the “Company”) is a United States based multi-national corporation. The Company is comprised of four operating segments: the Commercial Systems segment produces fractional to approximately 5 horsepower AC and DC motors, electronic variable speed controls, fans, and blowers for commercial applications; the Industrial Systems segment produces integral motors, generators, alternators and switchgear for industrial applications, along with aftermarket parts and kits to support such products; the Climate Solutions segment produces small motors, electronic variable speed controls and air moving solutions; and the Power Transmission Solutions segment produces, sells and services belt and chain drives, helical and worm gearing, mounted and unmounted bearings, couplings, modular plastic belts, conveying chains and components, hydraulic pump drives, large open gearing and specialty mechanical products.