Exhibit 32.2

CERTIFICATION PURSUANT TO SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report on Form 10-K of Altra Industrial Motion Corp. (the "Company”) for the year ended December 31, 2022 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Todd B. Patriacca, the Executive Vice President, Chief Financial Officer and Treasurer of the Company certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

By:	/s/ Todd B. Patriacca
	Name: Todd B. Patriacca
	Title: Executive V.P., Chief Financial Officer
	and Treasurer, Chief Accounting Officer

Date: March 1, 2023