TRADEMARK SECURITY AGREEMENT

Exhibit 10.25

EXECUTION COPY

TRADEMARK SECURITY AGREEMENT

This TRADEMARK SECURITY AGREEMENT (this “Trademark Security Agreement”) is made this 30^th day of November, 2004, among Grantors listed on the signature pages hereof (collectively, jointly and severally, “Grantors” and each individually “Grantor”), and XXXXX FARGO FOOTHILL, INC., in its capacity as Agent for the Lender Group and the Bank Product Providers (together with its successors and assigns in such capacity, “Agent”).

W I T N E S S E T H:

WHEREAS, pursuant to that certain Credit Agreement dated of November 30, 2004 (as amended, restated, amended and restated, supplemented or otherwise modified from time to time, including all exhibits and schedules thereto, the “Credit Agreement”) among Altra Industrial Motion, Inc., a Delaware corporation (“Parent”), each of Parent’s Subsidiaries identified on the signature pages thereof (Parent and such Subsidiaries, “Borrowers”), the lenders party thereto as “Lenders” (“Lenders”), and Agent, the Lender Group agreed to make certain financial accommodations available to Borrowers from time to time pursuant to the terms and conditions thereof;

WHEREAS, the members of the Lender Group are willing to make the financial accommodations to Borrowers as provided for in the Credit Agreement, but only upon the condition, among others, that Grantors shall have executed and delivered to Agent, for the benefit of Lender Group and the Bank Product Providers, that certain Security Agreement dated as of November 30, 2004 (including all annexes, exhibits or schedules thereto, as from time to time amended, restated, amended and restated, supplemented or otherwise modified, the “Security Agreement”); and

WHEREAS, pursuant to the Security Agreement, Grantors are required to execute and deliver to Agent, for the benefit of Lender Group and the Bank Product Providers, this Trademark Security Agreement.

NOW, THEREFORE, in consideration of the premises and mutual covenants herein contained and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each Grantor hereby agrees as follows:

1.             DEFINED TERMS.  All capitalized terms used but not otherwise defined herein have the meanings given to them in the Security Agreement and/or the Credit Agreement.

2.             GRANT OF SECURITY INTEREST IN TRADEMARK COLLATERAL.  Each Grantor hereby grants to Agent, for the benefit of the Lender Group and the Bank Product Providers, a continuing first priority security interest (subject to Permitted Liens) in all of such Grantor’s right, title and interest in, to and under the following, whether presently existing or hereafter created or acquired (collectively, the “Trademark Collateral”):

(a)           all of its Trademarks and rights in and to Trademark Intellectual Property Licenses to which it is a party including those referred to on Schedule I hereto;

(b)           all extensions, modifications and renewals of the foregoing;

(c)           all goodwill of the business connected with the use of, and symbolized by, each Trademark; and

(d)           all products and proceeds of the foregoing, including, without limitation, any claim by such Grantor against third parties for past, present or future (i) infringement or dilution of any Trademark, or (ii) injury to the goodwill associated with any Trademark.

3.             SECURITY AGREEMENT.  The security interests granted pursuant to this Trademark Security Agreement are granted in conjunction with the security interests granted to Agent, for the benefit of the Lender Group and the Bank Product Providers, pursuant to the Security Agreement.  Each Grantor hereby acknowledges and affirms that the rights and remedies of Agent with respect to the security interest in the Trademark Collateral made and granted hereby are more fully set forth in the Security Agreement, the terms and provisions of which are incorporated by reference herein as if fully set forth herein.

4.             AUTHORIZATION TO SUPPLEMENT.  Grantors hereby authorize Agent unilaterally to modify this Agreement by amending Schedule I to include any trademarks, registrations, or applications therefor (including, without limitation, extensions or renewals) which become part of the Trademark Collateral under the Security Agreement.  Notwithstanding the foregoing, no failure to so modify this Trademark Security Agreement or amend Schedule I shall in any way affect, invalidate or detract from Agent’s continuing security interest in all Collateral, whether or not listed on Schedule I.

5.             COUNTERPARTS.  This Trademark Security Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such separate counterparts shall together constitute but one and the same instrument.  Any signatures delivered by a party by facsimile transmission or by e-mail transmission shall be deemed an original signature hereto.

[signature pages follow]

2

IN WITNESS WHEREOF, each Grantor has caused this Trademark Security Agreement to be executed and delivered by its duly authorized officer as of the date first set forth above.

GRANTORS:	XXXXXX MANUFACTURING CORPORATION, a Delaware corporation, as a Grantor, WARNER ELECTRIC TECHNOLOGY LLC, a Delaware limited liability company, as a Grantor, FORMSPRAG LLC, a Delaware limited liability company, as a Grantor, BOSTON GEAR LLC, a Delaware limited liability company, as a Grantor
	By:
	Name:			Xxxxxxx X. Xxxx
	Title:			Chief Executive Officer
	AMERIDRIVES INTERNATIIONAL, L.P., a Delaware limited partnership, as a Grantor,
	By:		American Enterprises MPT Corp., its general partner
					By:
					Name:		Xxxxxxx X. Xxxx
					Title:		Chief Executive Officer

AGENT:	XXXXX FARGO FOOTHILL, INC.,
	a California corporation, as Agent
	By:
	Name:
	Title:

[SIGNATURE PAGE OF TRADEMARK SECURITY AGREEMENT]

SCHEDULE I
to
TRADEMARK SECURITY AGREEMENT

Trademark Registrations/Applications

Grantor Country Xxxx Application/
Registration No. App/Reg Date