Quality you demand.
Support you can trust.
For decades, Standard Locknut has been setting the standard for the highest quality mounted bearings, housings, and accessories for mission critical industrial applications.
Standard Locknut makes it easy to source a broad range of high-quality industrial power transmission components for distributors and OEMs for various industries.
We also provide a simple order and fulfillment process, ready access to engineering support, and customized solutions to suit your needs.
The I-Power series of roller bearings expands our engineered bearings lineup while setting a new standard for engineered mounted roller bearings that offer advanced performance features and durability.
Our new line includes Type E mounted tapered roller bearings and S2000 mounted spherical roller bearings.
Full Standard Locknut and Miether product catalog available for download.
For over 75 years Standard Locknut has been a leading manufacturer of high quality, precision engineered Mounted Bearings and Accessories. Our product range is one of the most extensive in the market offering products with shaft sizes from 1-3/8" to 50" in both standard and customized products. We are proud to be a U.S. based company with headquarters and manufacturing in Westfield, IN.
We keep our warehouse stocked with on-hand inventory of our complete standard line of precision industrial bearings and related accessories. We strive to deliver shorter lead-times and accelerated delivery options.
Standard Locknut engineered industrial machinery bearings are built to support moveable bridges, stadium roofs, dam gates, and other heavy moveable structure applications. Learn more about our HMS capabilities!
Precision | Performance | Partnership
Who we are
For over 75 years, Standard Locknut has delivered the highest quality cast iron, ductile iron and steel pillow blocks, flange cartridges, housings, adapter assemblies, durable locknuts, washers and barrier seals for a wide range of heavy industries.
Our Made-in-USA products are engineered to conform to the tightest specifications and perform dependably in the most demanding operating conditions.
We pride ourselves on being easy to work with and we strive to build long-term collaborative partnerships with our customers.
Our company offers the highest quality engineering expertise and custom machining capabilities to modify existing products or engineer new designs to that maximize performance.
What we do
Our products: We offer a wide range of high-quality housing solutions, locknuts, durable oil and advanced barrier seals, adapter assemblies, and withdraw sleeves.
Custom engineering: Our engineering team works with you to design modified standard products or custom-design new products to meet specific application requirements.
Customized machining: Our manufacturing facility has the machining capabilities to respond to virtually any custom solution of our product offering and bearing solution.
OEM development: Our in-house engineering and machining capabilities enable us to help our OEM customers optimize their designs while fabricating component and bearing-related solutions for specific industrial applications.
Core Restore: Save money and extend the life of your bearing and assembly systems by sending us your used housings for our team to review and potentially restore.
The Standard Locknut difference
Our products provide a great value and maximize the return on your bearing investment.
We strive to be your trusted partner to find the right solution for your individual application.