
About Us
Building Superior Quality for Superior Customers
At Diamond Case, our commitment to product excellence and swift delivery has set the standard in linear shafting for nearly 20 years. We’ve now expanded this dedication to include a comprehensive line of linear motion products, such as precision steel linear bearings, self-aligning linear bearings, pillow blocks, and shaft end supports. Our new offerings are of world-class quality and available in both open and closed options, ensuring we continue to revolutionize the linear motion industry.

High-Performance Linear Motion Products
Diamond Case offers a comprehensive range of linear motion products, all designed to meet the highest standards of quality and performance.
Our products deliver exceptional performance, helping you achieve maximum efficiency and reliability in your operations. Discover the Diamond Case difference: superior quality, fast delivery, and competitive pricing.

Uncompromising Quality and Service
Quality isn’t just a goal at Diamond Case; it’s our promise. Every shaft we produce meets or exceeds the highest industry standards for case hardness, roundness, cylindricity, straightness, and consistency of finish. Our products, which are induction hardened and precision ground, are crafted to the demanding tolerances required by the linear motion industry.
But our service is what truly sets us apart. At Diamond Case, we’re not just suppliers; we’re partners in your success. Our knowledgeable customer service team is dedicated to understanding and meeting your needs, delivering superior products at surprisingly competitive prices. When you choose Diamond Case, you choose speed, quality, and exceptional service—without compromise.