Kyosho BRG003 4x8x3mm Shield Bearing 4pcs

A set of four 4 x 8 x 3mm shielded ball bearings from Kyosho's universal bearing range.

This is a small bearing used in wheel hubs, steering assemblies and drivetrain positions on smaller-scale Kyosho cars. Small bearings live a hard life because they sit close to the dirt and take load out of proportion to their size, and they are the ones people forget to check.

The metal shield is what makes these worth fitting over an open bearing. Off-road dust and grit will find an unshielded bearing within a couple of runs, and once inside it grinds the races, drags on whatever it is supporting, and eventually seizes. A shield keeps contamination out and grease in, so the bearing keeps rolling freely far longer in exactly the conditions these cars are used in.

Bearings are consumables. If one feels rough or notchy when you spin it between your fingers, replace it rather than trying to clean it, because a dragging bearing costs you runtime and puts load on the motor. Four are supplied. This is a catalogue-wide Kyosho size rather than a model-specific part.