Consolidated Statements Of Income (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 31, 2010
Net Sales	$ 3,166.9	$ 2,808.3	$ 2,238.0
Cost of Sales	2,395.9	2,142.3	1,688.6
Gross Profit	771.0	666.0	549.4
Operating Expenses	458.2	410.3	311.6
Income From Operations	312.8	255.7	237.8
Interest Expense	44.5	31.1	19.6
Interest Income	1.6	1.7	2.5
Income Before Taxes	269.9	226.3	220.7
Provision For Income Taxes	69.6	68.3	66.0
Net Income	200.3	158.0	154.7
Less: Net Income Attributable to Noncontrolling Interests, net of tax	4.7	5.7	5.3
Net Income Attributable to Regal Beloit Corporation	$ 195.6	$ 152.3	$ 149.4
Earning Per Share Attributable to Regal Beloit Corporation:
Basic	$ 4,680,000.00	$ 3.84	$ 3.91
Assuming Dilution	$ 4,640,000.00	$ 3.79	$ 3.84
Weighted Average Number of Shares Outstanding:
Basic	41.8	39.7	38.2
Assuming Dilution	42.1	40.1	38.9