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The PTDA Foundation is...

the charitable arm of PTDA championing education, outreach and PT WORK Force® initiatives relevant to the power transmission/motion control (PT/MC) industry.

Loyalty Circle

The PTDA Foundation continues to pursue its mission to champion education and research initiatives relevant to the power transmission/motion control (PT/MC) industry that enhance the knowledge, professionalism and productivity of industry stakeholders. The companies below have been with the PTDA Foundation every step of the way by making a contribution in at least 16 of the past 20 years. Those listed in blue have given every year for the past 20 years!

Our thanks to their loyalty and dedication to the PTDA Foundation and its mission.



ABB Motors and Mechanical Inc.

Altra Industrial Motion
B & D Industrial

Baldwin Supply Company
Bando USA, Inc.
Bartlett Bearing Co., Inc.
BDI Americas (USA & Canada)
Bearing Service Inc.

Brewer Machine & Gear Co.
Canadian Bearings
Climax Metal Products Company
Continental ContiTech
Daemar Inc.
Daido Corporation of America
Diamond Chain Company

Garlock Sealing Technologies
Gates Industrial
Alan M. Haveson
IBT Industrial Solutions
Isostatic Industries Inc.
J/E Bearing and Machine Ltd.
Koyo Bearings North America, LLC

MAXCO Chain Ltd.
Midpoint Bearing
MPT Drives, Inc.
Nexen Group Inc.
NSK Americas
NTN Bearing Corp. of America
Overly Hautz Motor Base Co.
RBI Bearing Inc.
Regal Rexnord
Regina USA Inc.

The Rowland Company
Stafford Manufacturing Corp.
The Timken Company
Transply, Inc.
U.S. Tsubaki Power Transmission LLC (UST)
W.C. DuComb Company
Webster Industries Foundation