3RACING 3RB-MR104-ZZ-10 Double Metal Shield Bearing 4x10x4mm (10 pcs)  [3RB-MR104-ZZ-10]

3RACING Double Metal Shield Bearing 4 x 10 x 4 mm (10 pcs) - 3RB-MR104-ZZ-10
Price:
USD$6.00
Brand:
3Racing
Model:
3RB-MR104-ZZ-10
Condition:
Brand New
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Race-Grade Shielded Bearings

These 4x10x4mm double metal shield bearings from 3Racing are supplied in a 10 pack for use in competitive RC applications. The shielded construction balances contamination resistance with low friction to support sustained high-speed rotation.

Technical Advantages

  • Durability: Double metal shields protect the races from abrasive particles while keeping rotational drag minimal for longer service life under track conditions.
  • Precision Fit: Manufactured to standard 4x10x4mm dimensions to ensure tight tolerances and reduce lateral play in hubs and carriers.
  • Versatile Application: Suitable for drivetrain bearings, idler pulleys and wheel hubs where compact, low-friction components are required.

How do these compare to open bearings for speed runs?

Shielded bearings offer a compromise: slightly more protection than open bearings with minimal additional drag. For dry, clean speed runs open bearings may be marginally faster but require more maintenance.

Recommended lubrication for competition use?

Use a light, high-speed bearing oil to reduce friction without attracting excess dirt; apply sparingly and verify performance during practice laps.

Are these bearings suitable for roller differentials?

Yes, the 4x10x4mm size fits many roller differential assemblies, but confirm internal clearance and axial load limits for your specific diff design.