Tamiya 15111 JR Round Hole Ball Bearing - tuning part for PRO MS chassis racers  [15111]

What the Tamiya 15111 JR Round Hole Ball Bearing provides

The Tamiya 15111 JR Round Hole Ball Bearing is a compact upgrade for Mini 4WD builders wanting cleaner motor rotation inside the gearbox. Designed to work with the PRO MS chassis, it helps keep the motor shaft running true under racing loads.

Chassis fit and motor support

This bearing is made to integrate with the PRO MS chassis geometry, accommodating the double-shaft motor layout. Its design helps reduce lateral play and lowers the friction that can slow down motor response.

Upgrade potential for club racing

Fitting the JR bearing can make the drivetrain more efficient by trimming mechanical losses. For club-level racing this can translate to smoother power delivery and fewer unexpected slowdowns in corners.

Simple installation and alignment advice

Installation is accessible for hobbyists at all skill levels. The round hole configuration aids quick alignment in the gearbox and secures the motor shaft for steady operation once fitted.