Doppler Gear has over 50 years of experience in custom gear manufacturing

Our four manufacturing facilities in the upper Mid-West United States of America serve the component needs of domestic and international corporations. Large organizations rely on us to provide competitively priced parts with uncompromised quality. Small companies and individuals look to us to support their projects with technical expertise and thousands of stocked standard tools.

We understand that your requirements include quality, delivery, support, and competitive pricing. Our mission is to provide the right combination of these attributes to meet the specific needs of each customer.

Doppler Gear Company Locations:

1920 Oakcrest Ave, Ste 8, Roseville, MN 55113

39873 State HWY 47, Isle, MN 56342

119 Iowa Avenue E, Newfolden, MN 56738

810 South Airport Road, Phillips, WI 54555


Doppler Custom Gear Cutting
As an expert in gear finishing Ben held numerous patents in multiple countries.
Toolcast, American Society of Tool Engineers
Ben also wrote the popular green covered reference book, Modern Methods of Gear Manufacture, and the Gear Finishing section in the ASTME Tool Engineers Handbook.
Ford Article on Jim Bregi Sr.
In 1986 Jim left his position as President of the Metals Division of ME International to purchase a small gear company from Charles Doppler.
Jim Bregi Sr. of Doppler Gear

In 1998 Jim Bregi, Jr. became President of Doppler Gear Company. He holds an MBA from the University of St. Thomas, has served as a Director for multiple organizations, and is a former Chairman of the American Gear Manufacturers Association. He remains active in committees and activities across the Industry.

The company has continued to grow and now operates 4 manufacturing facilities in two states to serve a wide assortment of industries including construction, recreational vehicles, torque multiplication, and OEM equipment manufacturers.

Ben F. Bregi began in the gear production field in 1931 at Michigan Tool. In 1933 he moved to National Broach and Machine Company. He received his mechanical engineering degree in 1937 and his PhD in 1966. He rose through the ranks from tool engineer at National Broach to President of the company.
Ben F. Bregi
Ben lectured all over the world and was active in AGMA technical committees and the National Machine Tool Builders Association.
The Iron Age, The National Metalworking Weekly, June5, 1958
James F. Bregi, Sr. received his Mechanical Engineering degree from Michigan Technological University. He began his career at Ford Motor Company in Dearborn, MI and later took an executive position at Minneapolis Electric Steel Casting Company.
Ready to Serve You, Doppler Gear Co.
His long career in engineering and executive management has spanned the automotive, mining, and aerospace industries and included several board positions in companies such as Cirrus Aircraft and Hitchcock Industries (now part of Consolidated Precision Products).
Jim Bregi, Jr. and Jim Bregi, Sr.
Doppler Gear Company continues to build on a rich history of engineering and technology for the benefit of our customers.