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Power Transmission Distributors Association is...

more than 370 power transmission/motion control distribution and manufacturing companies, representing over $16 billion in product sales.

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 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.



Altra Industrial Motion

B & D Industrial
Baldwin Supply Company
Bando USA, Inc.
Bartlett Bearing Co., Inc.
BDI Americas (US & Canada)
Bearing Service Inc.
Brewer Machine & Gear Co.
Canadian Bearings
Climax Metal Products Company
Daemar Inc.
Daido Corporation of America
Diamond Chain Company
Dichtomatik Americas
Garlock Sealing Technologies
Gates Industrial
Alan M. Haveson
IBT Industrial Solutions

Isostatic Industries Inc.
JKEKT North America Corporation/Koyo Bearings
Kaman Industrial Technologies Corporation
Midpoint Bearing
MPT Drives, Inc.
Motion Industries Inc.
Nexen Group Inc.

Nidec Motor Corporation
NSK Americas
NTN Bearing Corp. of America
RBI Bearing Inc.
Regal Power Transmission Solutions
Rexnord Industries
The Rowland Company
Stafford Manufacturing Corp.
The Timken Company
Transply, Inc.
U.S. Tsubaki Power Transmission LLC (UST)
W.C. DuComb Company
Webster Foundation (Webster Industries Inc.)