Condensed Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 29, 2014	Mar. 30, 2013
Income Statement [Abstract]
Net Sales	$ 801.2	$ 778.2
Cost of Sales	606.8	578.7
Gross Profit	194.4	199.5
Operating Expenses	124.7	123.6
Income From Operations	69.7	75.9
Interest Expense	10.4	10.6
Interest Income	1.7	0.7
Income Before Taxes	61.0	66.0
Provision For Income Taxes	16.0	15.3
Net Income	45.0	50.7
Less: Net Income Attributable to Noncontrolling Interests	1.2	1.2
Net Income Attributable to Regal Beloit Corporation	$ 43.8	$ 49.5
Earnings Per Share Attributable to Regal Beloit Corporation:
Basic	$ 0.97	$ 1.10
Assuming Dilution	$ 0.96	$ 1.09
Cash Dividends Declared	$ 0.20	$ 0.19
Weighted Average Number of Shares Outstanding (in millions):
Basic	45.1	45.0
Assuming Dilution	45.4	45.3