When an anti-friction bearing is fitted on a shaft in a fixed position, how is it held in place?

The most effective method for securing an anti-friction bearing in a fixed position on a shaft is through the use of stabilizer rings. These rings are specifically designed to maintain the proper alignment and positioning of the bearing, preventing any lateral or axial movement that could compromise the performance or lifespan of the bearing. Stabilizer rings effectively distribute the load and help to minimize any vibrations that could occur during operation, ensuring a stable and reliable relationship between the bearing and the shaft.

While set screws, shaft collars, and locknuts can all serve various fastening purposes in different contexts, they do not provide the same level of stability and alignment that stabilizer rings offer for anti-friction bearings. Set screws might not secure the bearing adequately against movement, shaft collars may not be suitable for all bearing types, and locknuts can introduce additional complexity without addressing the specific alignment needs of anti-friction bearings. Therefore, stabilizer rings are the optimal choice for this application, ensuring the bearing remains securely in place.