For hobbyists servicing or tuning models, the Yokomo BB-1140-2 bearings are a dependable choice. These 4x11x4mm bearings install cleanly into many RC chassis to reduce friction and deliver quieter, smoother rotation.
The BB-1140-2 bearings fit a range of Yokomo chassis including SDR-020, MDR-020, and variants such as SDR-020P and MDR-020R. Double-check axle and hub dimensions to ensure a correct fit before installation.
Installing these bearings improves wheel spin and reduces wear on driven parts, helping to maintain consistent lap times and lengthen component life. Regular inspection and light lubrication will keep them running well through many sessions on the track.
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