rubber gaskets
LP gas components
Goodyear tubing
Parker Pushlok tubing
specialty rubber rings
brass fittings
Parflex products
Parker products

Rubber Products
& Fittings

Great Lakes Rubber & Supply is a well-established rubber products and fittings distributor. Centrally located with modern facilities in Wisconsin and Illinois, our Midwest warehouses serve customers across the USA. Additionally, GLR has access to engineers for the purpose of designing seal solutions for hundreds of OEM applications. Our stocking warehouses inventory over 30,000 items from more than 100 quality manufacturers. Convenient blanket and automated ordering are available for enhanced efficiency. Great Lakes Rubber & Supply is your best source for quality rubber products and fittings!

We specialize in custom applications and offer savings through innovative programs and capabilities such as:

  • Packaging and Kitting
  • Sub Assembly
  • EDI
  • Bar Coding
  • Parker Hannifin Engineering Services and Software
  • Dedicated Inventory
  • Qualified Quality Supplier

Great Lakes Rubber
New President

Great Lakes Rubber is pleased to announce the promotion of George Hunkel Baumann to President, effective immediately.

George Baumann

George represents the 3rd generation of the Baumann family to assume the role of President at GLR. He proceeds both his grandfather and founder George Henry Baumann, and his father Thomas Hunkel Baumann. Tom will continue to serve as Chairman of the Board.

George has been active in the organization for the past seven years serving as an Account Manager and then Senior Operations Manager. He holds a bachelors Degree in Economics from Middlebury College and graduated with Honors from the University of Chicago Booth School of Business in 2017.

During this transition period, we would like to emphasize that there will be no change in the service we provide and your key contacts will remain the same. You can have our absolute assurance that there will be continued delivery of high quality services.

We sincerely thank you for your past and future support and invite you to join us as we embark on this exciting new chapter of our journey. If you have any questions during this transition period, please do not hesitate to contact your sales contact.

Who We Are

Great Lakes Rubber & Supply, Inc.

In 1954, Great Lakes Rubber & Supply, Inc. was founded by George H. Baumann. Initially, there were two employees located in a 500 square foot building at 735 N. Jackson St., Milwaukee. At the start, business was confined to distributing hose, belting, gaskets and teflon.

Within two years, we outgrew this facility and moved to a 1500 square foot plant at 3118 N. Teutonia. It was during this year, 1956, that we were appointed a Parker Seal distributor. Our responsibilities with Parker included the stocking and selling for their O Ring, Packings and O Seal Divisions. Over the next 28 years, expansion and addition to our Teutonia plant increased its size to 7500 square feet.

With the continuous increasing demands for our products and our strong customer acceptance, we moved in August 1984 into our current facility. This modern warehouse and manufacturing plant has 25,000 square feet. This new plant has enabled us to increase our inventory of Parker Seal products along with expanding our capabilities in the hydraulic and gasket departments. We currently employ thirty-two people.

Tom Baumann

In response to our customers needs and demands, we opened a branch operation in 1989 at Rockford, Illinois. Sales have grown rapidly and Great Lakes Rubber & Supply, Inc. is recognized as the "Seal People" of Rockford.

I would like to offer my special thanks to all of our customers who were responsible for making Great Lakes Rubber & Supply, Inc. a prominent force in the industry. Through the years of our growth and expansions, we have never lost sight of the principles and concepts that have made us strong. We will now, as we have in the past, continue to supply our customers with the highest quality product in the manner and methods that you desire.

Now, more than ever, we are dedicated to the principles of total quality. Please take advantage of our team's services.

Thomas H. Baumann

Management Team

George Baumann


I joined Great Lakes Rubber in 2011. As president, I am responsible for internal operations and sales management, strategic planning, customer account management, and new business generation in North America, Europe, and Asia.

I would like to ensure to all of our customers that we take pride at GLR to provide the best service possible. GLR has 60 years of track record dedicating itself to our customers and making our company a prominent player in the Midwest.


Ed Kelley

I joined Great Lakes Rubber in 1991. I am the Sales Manager in charge of mitigating agreements between GLR and our customers, as well as helping our outside Sales team with any support they need. My prior experience included working for some of our current suppliers in sales of hose, fittings, and seal products.

Our inside/outside sales staff’s organizational skills, experience, and product knowledge has proven to be a perfect combination to meet our customer’s requirements through our product and service offerings. I am proud to be a part of GLR’s development, quality performance, and positive company values. These attributes have positioned our business to be uniquely qualified and profitable. This has yielded favorable results by extending our current growth rate and market share.


Kevin O'Neill

I’ve been with Great Lakes Rubber since 1995. I am the Warehouse Manager with responsibilities that include production, distribution, quality, and human resources. I am also responsible for our warehouse team and work on NAFTA and other export related quality issues. As part of the management board at GLR, I’d like to extend my thanks to all our customers and would like to ensure we stand by our quality and timeliness standards.

My hobbies include golf, basketball, reading, and enjoying time with my grandchildren.

Contact Milwaukee: (414)352-8800 or
Rockford/Loves Park: (815)654-8188

Strategic Statement

Great Lakes Rubber strives to meet our customer's global requirements through excellent customer service, alignment with world class suppliers, and continuous improvement of our quality management system.


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