📚 Engineering Resources & Guides

A set screw collar uses one or more screws that dig into the shaft to secure it. This is cost-effective but can damage the shaft. A clamp-style collar uses a split design with a clamping screw, which applies uniform radial force, does not mar the shaft, and offers higher holding torque.

Clamping force depends on the screw torque, screw thread geometry, and friction. A general approach is to use the torque vs. tension relationship: F = T / (K * d), where T is screw torque, K is the nut factor (typically 0.2), and d is the screw diameter. For a detailed guide, refer to our Clamping Force Calculation resource.

For highly corrosive environments, such as marine or chemical processing applications, 316 stainless steel is the preferred material. It offers superior resistance to chlorides and harsh chemicals. For non-metal options, plastic collars (POM) are completely inert to most chemicals.

Yes. We manufacture shaft collars with custom bore sizes, lengths, materials, and special features like keyways, set screw positions, or flanges. Send your 2D/3D CAD for a DFM review.

Our standard bore tolerance is +0.03mm to +0.08mm for slip-fit applications (roughly ISO H8). Tighter tolerances down to +0.01mm are available upon request for precision requirements.