To increase application performance and help ensure safety, refer to these “Technology & Maintenance Council (TMC) Recommended Maintenance Practices (RPs)” when handling wheel or drivetrain bearings.

Follow this six-step procedure for nut torquing and back off to adjust wheel bearings to meet correct end play specifications.

hen adjusted properly, wheel end setting should not change significantly during early operation. Over time, wear causes small changes, which worsen with poor cleanliness and improper maintenance practices. For proper wheel end cleaning and maintenance procedures, refer to TMC RP 622.

To service pre-adjusted wheel ends and maximize performance, follow the DOs and DON’Ts below. Note: A spacer between the inner and outer bearings can identify a pre-adjusted wheel end.

Skill Level: Easy | Special Tools: None Timken recommends replacing the bearing cone (inner race) and bearing cup (outer race) at the same time and that both components come from the same manufacturer. Avoid Mixing Parts from Different Bearing Manufacturers Common Problems Caused By Mixing Parts • Incompatible internal bearing profile • Overall bearing width…