Condensed Consolidated Statements Of Earnings (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Condensed Consolidated Statements Of Earnings
Net Sales	$ 681,785	$ 584,181	$ 1,344,440	$ 1,091,499
Cost of Sales	531,116	440,677	1,028,960	817,080
Gross Profit	150,669	143,504	315,480	274,419
Operating Expenses	95,860	76,705	196,551	144,855
Income From Operations	54,809	66,799	118,929	129,564
Interest Expense	4,814	4,480	9,905	9,541
Interest Income	419	514	736	1,155
Income Before Taxes	50,414	62,833	109,760	121,178
Provision For Income Taxes	14,429	20,058	32,952	38,535
Net Income	35,985	42,775	76,808	82,643
Net Income Attributable to Noncontrolling Interests	1,655	1,055	3,641	3,161
Net Income Attributable to Regal Beloit Corporation	$ 34,330	$ 41,720	$ 73,167	$ 79,482
Earnings Per Share of Common Stock:
Basic	$ 0.89	$ 1.09	$ 1.89	$ 2.10
Assuming Dilution	$ 0.88	$ 1.07	$ 1.87	$ 2.05
Cash Dividends Declared	$ 0.18	$ 0.17	$ 0.35	$ 0.33
Weighted Average Number of Shares Outstanding:
Basic	38,667,034	38,310,371	38,646,873	37,878,189
Assuming Dilution	39,212,535	38,954,418	39,182,215	38,796,187