When precision shells are installed, they will extend past the face of the bearing housing. This is called?

The scenario where precision shells extend past the face of the bearing housing is referred to as "crush." This term describes the intentional design feature that ensures the bearing shell is held firmly in place by the bearing housing. When the shell is installed, the slight extension past the face allows for a controlled deformation that improves contact pressure between the bearing and the housing. This enhances the stability and performance of the bearing assembly, leading to better load distribution and increased lifespan.

Understanding the term "crush" is essential in the context of bearing installations, as it highlights the importance of proper fit and the mechanical properties of the materials involved. Adequate crush helps prevent any potential movement or shifting of the bearing during operation, which is critical for maintaining alignment and performance in machinery. This is particularly relevant in applications where high precision is required, and every aspect of installation must be considered to achieve optimal functioning.