3RACING 3RB-MR104-ZZ-2 4x10x4mm Double Metal Shield Bearing (2 pcs) - Racing Spare  [3RB-MR104-ZZ-2]

3RACING Double Metal Shield Bearing 4 x 10 x 4 mm (2 pcs) - 3RB-MR104-ZZ-2
Price:
USD$1.50
Brand:
3Racing
Model:
3RB-MR104-ZZ-2
Condition:
Brand New
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Race-Ready Bearings by 3RACING 3RB-MR104-ZZ-2

The 3RACING Double Metal Shield Bearing in 4 x 10 x 4 mm format is a compact, serviceable choice for racers and tuners. It delivers predictable rolling behavior suitable for setup work and component swaps.

Shielded Construction for Consistent Runs

Double metal shields provide a barrier against dust and debris, helping to preserve internal lubrication and reduce performance variance over a run. The design supports repeatable behaviour during setup tuning.

Practical Fit for Competitive Setups

These bearings are ideal when a quick bearing change is needed between sessions or when fitting light upgrades to suspension and drivetrain parts. The 4 x 10 x 4 mm sizing makes them a common, easy-to-source option for many race setups.

How do these bearings affect lap consistency?

Consistent rolling from well-sealed bearings reduces drivetrain drag variability, which helps maintain predictable lap times and repeatable setup changes.

Should I prefer metal shielded or rubber sealed bearings for track use?

Metal shields offer lower friction and easier cleaning, while rubber seals block more moisture. Choose based on track surface and cleaning routine.

What is the best practice for swapping bearings at the pits?

Carry a simple bearing driver, clean the housing briefly, press the new bearing squarely into place, and confirm free rotation before reassembling the wheel or hub.