This is a pack of four replacement ball bearings sized 6.35x9.5x3.2mm intended for RC-scale Mini Spyder MT applications. The set is supplied as a direct replacement for worn or damaged bearings used in wheel hubs and driveline points on the Mini Spyder MT platform, helping restore smooth rotation and reduce play where bearings are fitted.
Installation is straightforward for those familiar with hobby-grade maintenance: remove the wheel or component, extract the old bearing, and press or seat the new bearing into the hub or carrier until it is flush. Use the correct tools to avoid damaging the bearing seal or housing, and confirm the inner bore dimension (6.35mm) matches the shaft or spacer in your assembly before final reassembly.
For tuning and upkeep, clean bearings periodically, inspect for side play and roughness, and apply a light bearing oil if recommended by your maintenance routine. Replacing a set of bearings can noticeably reduce drivetrain drag and improve steering responsiveness on small-scale monster truck setups.
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