3RACING 3RB-MR115-ZZ/2 High Precision Double Shield Bearings 5x11x4mm (2)  [3RB-MR115-ZZ/2]

3RACING Double Metal Shield Bearing 5 x 11 x 4 mm (2 pcs) - 3RB-MR115-ZZ/2
Price:
USD$1.50
Brand:
3Racing
Model:
3RB-MR115-ZZ/2
Condition:
Brand New
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Precision Double Metal Shield Construction

The 3RACING 3RB-MR115-ZZ/2 bearings use double metal shields to control contamination while maintaining low running friction. Their 5 x 11 x 4 mm form factor and consistent internal clearance make them suitable for drivetrain and wheel applications where predictable behaviour is required.

Performance Oriented Details

  • Metal Shield Protection: CNC-friendly shielded races reduce particle ingress and support longer intervals between maintenance.
  • Standard Sizing: The 5 x 11 x 4 mm dimension conforms to common racing mounting points, easing replacement and spares management.
  • Reliable Performance: Manufactured to stable tolerances to preserve rotational balance and handling consistency under load.

Installation and Maintenance Notes

Press bearings with uniform force to prevent brinelling and verify axial and radial clearance after installation. Inspect periodically for contamination and apply light bearing oil where needed to retain optimal rotation without affecting balance.

What tolerances should I expect from these bearings?

Expect consistent internal clearance suitable for general racing use; these bearings are intended for repeatable fitment and stable rotational behaviour under normal hobby loads.

Are these bearings appropriate for high precision gearboxes?

They are suitable where the 5 x 11 x 4 mm size and shielded protection meet gearbox requirements; verify shaft runout and housing alignment to maintain gearbox efficiency.

Recommended lubrication approach for racing setups?

Use minimal, low-viscosity bearing oil to reduce drag while preserving bearing life; avoid heavy greases that can upset high RPM performance.