Tamiya 15111 JR Round Hole Ball Bearing - compact upgrade for PRO MS chassis performance  [15111]

Summary of the Tamiya 15111 JR Round Hole Ball Bearing

The Tamiya 15111 JR Round Hole Ball Bearing is designed to improve Mini 4WD drivetrain behaviour by supporting cleaner motor rotation inside the gearbox. It pairs with the PRO MS chassis to give reliable support to the motor shaft.

Designed fit and mechanical role

This bearing fits into the PRO MS chassis configuration, complementing the double-shaft motor arrangement. Its presence reduces internal resistance and helps the motor run with less mechanical drag.

Practical advantages for racers

Using the JR bearing can sharpen drivetrain efficiency and help the car maintain consistent speed through longer runs. The reduction in friction supports better energy use from the motor, helping lap time consistency.

Fitting notes for model builders

Installation is straightforward and suitable for builders at different experience levels. The round hole design makes alignment in the gearbox easy and provides a snug seating for dependable motor support.