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Power Transmission Distributors Association is...

more than 300 power transmission/motion control distribution and manufacturing companies, representing over $20 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 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
Daemar Inc.
Daido Corporation of America
Dichtomatik Americas
ErieTec, Inc.
Garlock Sealing Technologies
Gates Industrial
Alan M. Haveson
IBT Industrial Solutions

Isostatic Industries Inc.
J/E Bearing and Machine Ltd.
JKEKT North America Corporation/Koyo Bearings
Kaman Industrial Technologies Corporation
Koyo Bearings North America, LLC

Megadyne America – Jason Industrial
Midpoint Bearing
MPT Drives, Inc.
Nexen Group Inc.
Nidec Motor Corporation
NSK Americas
NTN Bearing Corp. of America

Purvis Industries, LLC
RBI Bearing Inc.
Regal Power Transmission Solutions
Regina USA Inc.

Rexnord Industries, LLC
The Rowland Company
MAXCO Chain Ltd.

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

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Power Transmission
Distributors Association

230 W. Monroe St.
Chicago, IL 60606-4703



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