We make acquiring quality mounted bearings and accessories easy

At Standard Locknut, we pride ourselves on being a highly collaborative partner to our customers.
Customers across a wide range of industries rely on us to be more than just a source of mounted bearings and assemblies but rather a total solution provider.
We engineer and manufacture only the highest quality mounted bearing pillow blocks, flange cartridges, bearings, adapter assemblies, locknuts, washers and a wide array of accessories to fit individual applications.
We work hard to address a broad range of industrial manufacturing needs from basic component procurement to custom engineering support.
We also design and construct integrated solutions for heavy movable structures found on bridges and in public stadiums.
Our mission is simple: to provide you with a simple, easy process to support your next mounted bearings and assemblies related industrial component project.
Our core values
As your trusted partner, we will strive to consistently deliver against a set of clearly defined core values.
Easy, hassle-free product sourcing
With a broad range of available standard product inventory, rapid fulfillment, and live customer service/support, we pride ourselves on being easy to work with.


Highest-quality, durable products
Our wide variety of industrial products have a track record of reliability and durability. You can count on our products to perform in the field as they were intended when they were originally designed.
Easy access to the technical resources you need
We’re there for you when you need us. Our qualified staff of engineering and support personnel are available by email, phone or text, sometimes on a 24/7 basis.


Strong ROI
Our products are built to maximize the life of your bearings, assemblies and industrial component solutions, providing you a strong return on your financial investment.
More than just a supplier
We work collaboratively to become an invaluable extension to your internal industrial sourcing staff. We work with you to help identify the best solution for your industrial application challenges.

A legacy of industry leadership
For over 75 years, Standard Locknut has delivered the highest quality Made-in-USA mounted bearings, housings, adapter assemblies, locknuts, durable lockwashers, barrier seals and cast-iron pillow block housings for multiple industries.
We are proud of the moments in our history that make us who we are today.

George Miether starts Miether Machine Works (MMW)

Robert F. Waddell founds Standard Locknut and Lock Washer Co.

MMW builds first split pillow block housing for industrial application

Standard enters industrial markets with accessories and pillow blocks

MMW becomes Miether Bearing Products

Standard moves operations to new facility in Westfield, IN

Standard becomes Standard Locknut, LLC

Standard Locknut voted Westfield IN employer of the year

Standard Locknut & Miether Bearing Products merged into Standard Locknut LLC Westfield, IN facility

Tonka Bay Equity Partners acquires Standard Locknut LLC