The indirect mounting method is used for mounting which type of bearings?

• A. Ball bearings
• B. Radial bearings
• C. Tapered bearings
• D. Spherical bearings

Answer: (C)

Indirection mounting uses a helper component such as a sleeve or installer to apply mounting force to the bearing through the proper surface, protecting the race from direct impact and ensuring correct seating. This approach is especially important for tapered bearings, which rely on precise interference fits and correct axial preload. By mounting with an installation sleeve or appropriate fixture, the outer race is seated in the housing and the inner race onto the shaft without hammering on the races themselves, preserving race geometry and enabling accurate alignment. Ball bearings or spherical bearings can often be mounted directly with suitable tools, but the demanding fit and preload requirements of tapered bearings make indirect mounting the preferred method.