3Racing 3RB-MR74-ZZ/10 4x7x2.5mm Double Metal Shield Bearings - Race Tune Pack  [3RB-MR74-ZZ/10]

3RACING Double Metal Shield Bearing 4 x 7 x 2.5 mm (10 pcs) - 3RB-MR74-ZZ/10
Price:
USD$6.30
Brand:
3Racing
Model:
3RB-MR74-ZZ/10
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3Racing shield bearings for competitive setups

For racers and serious tuners, the 3Racing 4x7x2.5mm Double Metal Shield Bearings provide a predictable reduction in friction with tight manufacturing tolerances. These bearings are suited to high RPM assemblies where consistent bearing behaviour improves setup repeatability.

Engineering and race benefits

The double metal shield construction balances contaminant protection with minimal rolling resistance, delivering stable axle and pinion rotation under load. Consistent bearing geometry helps maintain alignment and reduces variance between runs.

Installation and tuning advice

Fit bearings with light lubricant on the inner race and ensure housings are free of burrs or paint that could cause binding. For competitive use, inspect bearings regularly and rotate spares into service to monitor wear patterns and maintain lap time consistency.

Where in a race car do these 4x7x2.5mm bearings perform best?

They are ideal for small hub bearings, gearbox shafts, and low clearance idler positions where low drag and repeatable spin are required.

Is the 3RB-MR74-ZZ/10 pack suitable for practice and race use?

Yes, the 3RB-MR74-ZZ/10 pack supplies 10 matched bearings that can be cycled between practice and race duties to monitor wear and performance.

Any setup tips for minimising bearing drag?

Use minimal lubricant on the inner race, check for precise seat fit, and avoid over-tightening end hardware which can introduce preload and increase drag.