Describe correct bearing installation to avoid skiving and brinelling.

• A. Hammer the bearing into place to ensure full seating.
• B. Clean surfaces, proper lubrication, use correct size and interference fits, avoid hammering, and apply even pressure with a suitable tool.
• C. Apply heat to the inner race only.
• D. Peen the edges lightly to secure.

Answer: (B)

Proper bearing installation avoids local damage by ensuring clean, correctly fitted parts and even seating force. Clean surfaces and a fresh lubrication film prevent grit or dry metal from skiving the race as it seats. The interference fit must match the shaft or housing so the bearing remains aligned and does not wander under load, which would cause distortions and could lead to brinelling. Never strike the bearing with a hammer or punch—impacts create localized stresses that indent the race (brinell) and can crack or deform the bearing. Instead, use a press or a bearing installation tool that applies even pressure around the circumference, so the load is distributed evenly across the race. If heating is used, follow manufacturer guidance and apply heat appropriately so you don’t distort or misalign the races.