3RACING 3RB-693-ZZ/2 Double Metal Shield Bearings 3 x 8 x 4 mm (2 pcs)  [3RB-693-ZZ/2]

Durable bearing swap - 3RACING 3RB-693-ZZ/2

The 3RACING 3RB-693-ZZ/2 double metal shield bearings measure 3 x 8 x 4 mm and come as a pair for replacing worn hub or gearbox bearings. They help restore smooth wheel and shaft operation in sport and hobby models.

Installation and common uses

These bearings press into typical small hubs and carriers without modification when 3 x 8 x 4 mm is the required size. They are a useful spare for routine rebuilds and weekend track work.

Why metal shields are practical

Metal shields prevent larger particles from entering while keeping rotation efficient. For dusty tracks or mixed-surface running, they offer a cost-effective maintenance upgrade.