8x12x3.5 Ball Bearings (4) for Mini Spyder MT - Serpent 440163  [SER440163]

Direct replacements for Mini Spyder MT hubs and diffs

The product is a set of four 8x12x3.5 ball bearings intended as direct replacement parts for the Serpent Mini Spyder MT model. They suit RC drivetrain positions that call for 8x12x3.5 bearings, helping to return worn hubs and differentials to smooth operation.

Primary compatibility is with the Mini Spyder MT chassis where the factory component uses the 8x12x3.5 size. The package includes four pcs, ideal for periodic servicing or swapping out bearings that have been compromised by dirt ingress during off-road use.

Fitment advice: these bearings are drop-in replacements where hubs and diff carriers accept 8x12x3.5 sizes. Check bearing seats for damage or contamination, ensure full seating and free rotation after installation, and consider replacing bearings in sets to maintain equal drivetrain loading. Regular checks and light lubrication will extend operational life under normal RC conditions.