American Enterprises MPT S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 12.1

ALTRA HOLDINGS, INC.
RATIO OF EARNINGS TO FIXED CHARGES

	Year-ended			Year-ended			Year-ended		Year-ended		Year-ended
	12/31/09			12/31/08			12/31/07		12/31/06		12/31/05
Net income (loss)		(2,314	)		6,494			11,511		10,363		4,444
Adjustments to net income (loss):
(Gain) loss from discontinued operations					(224	)		2,001		—		—
Interest expense		32,976			28,339			38,554		23,522		17,065
Interest component of operating rental expense		288			437			356		528		344
Income taxes		(2,314	)		16,731			8,208		6,352		3,917
Earnings		28,636			51,777			60,630		40,765		25,770
Fixed charges:
Interest expense, net		32,976			28,339			38,554		23,522		17,065
Interest component of operating rental expense (see calculation below)		288			437			356		528		344
Total fixed charges		33,264			28,776			38,910		24,050		17,409
Ratio (1) (2)		—			1.80			1.56		1.70		1.48

( 1 )	For purposes of calculating the ratio of earnings to fixed charges, earnings represent income before income taxes, discontinued operations, cumulative effect of change in accounting principle charges and fixed charges. Fixed charges represent interest expense and a portion of rental expense which we believe is representative of the interest component of rental expense.
( 2 )	Earnings were insufficient to cover fixed charges in the year ended December 31, 2009 by $4.6 million.