3RACING 3RB-MR128-ZZ/2 Double Metal Shield Bearing Pair 8x12x3.5 mm  [3RB-MR128-ZZ/2]

3RACING Double Metal Shield Bearing 8 x 12 x 3.5 mm (2 pcs) - 3RB-MR128-ZZ/2
Price:
£1.20
Brand:
3Racing
Model:
3RB-MR128-ZZ/2
Condition:
Brand New
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Quality Bearings for Regular Maintenance

The 3RACING Double Metal Shield Bearing, sized 8x12x3.5mm and sold in pairs, is a sensible replacement for worn components. These bearings are chosen by modellers who want straightforward parts that help restore low-friction rotation.

Metal Shields Improve Longevity

Shielding made from metal reduces ingress of dust and small debris, slowing down wear on the race and balls. That makes these bearings suitable for a variety of running conditions, from club tracks to light off-road trails.

General Compatibility and Uses

With a common 8x12x3.5mm footprint, these bearings are compatible with many standard RC hubs and moving parts, allowing quick swaps without specialised tools. The pair format is handy for replacing both sides at once.

Do these bearings suit vintage kits?

If the original specification calls for 8x12x3.5mm bearings they are often a direct swap that improves rotation and reduces noise on older models.

Is extra sealing required for beach runs?

Metal shields reduce sand entry but do not fully seal; avoid heavy saltwater exposure and rinse and relube after sandy or salty conditions.

Can I mix these with other bearing brands?

Mixing brands in the same assembly is possible but for best balance replace matched positions together to keep running characteristics consistent.

How do I check bearing fitment?

Measure the inner bore and outer diameter of the component or compare to the old bearing; if the dimensions match 8x12x3.5mm the part should fit correctly.

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