3RACING 3RB-693-ZZ/2 Double Metal Shield Bearings 3x8x4mm (2 Pack)  [3RB-693-ZZ/2]

3RACING Double Metal Shield Bearing 3 x 8 x 4 mm (2 pcs) - 3RB-693-ZZ/2
Price:
£1.28
Brand:
3Racing
Model:
3RB-693-ZZ/2
Condition:
Brand New
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Precision rolling with 3RACING 3RB-693-ZZ/2

When you need consistent rotation and reduced friction, the 3RACING 3RB-693-ZZ/2 double metal shield bearings at 3 x 8 x 4 mm are a reliable choice. This twin pack is ideal for replacing tired bearings in small drive assemblies.

Suitable installations

These bearings fit common small-scale hubs and intermediate shafts that accept 3 x 8 x 4 mm units. Their compact size and shielded form make them practical for both maintenance and modest performance upgrades.

Shielded design advantages

Metal shields offer a robust barrier against coarse contaminants while letting the bearing run freely. For club tracks and hard-packed surfaces, they provide a sensible balance of protection and low rolling resistance.

Are these bearings compatible with brushless motor bearings?

They can be used where the motor or gearbox specifies a 3 x 8 x 4 mm bearing, but check speed and load ratings for high-RPM motors.

Will metal shields stop all dirt?

They block larger particles but are not fully sealed. For wet or muddy running consider sealed or rubber-shielded bearings instead.

How do I check bearing health?

Spin the bearing by hand and feel for smooth motion, listen for noise, and check for any radial play. Replace if any defect is present.

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