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Product drops, insider updates & more...
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SPECIFICATIONS
NAME: 18307-2RS / 6903/18-2RS
OUTER DIAMETER: 30mm
INNER DIAMETER: 18mm
HEIGHT: 7mm
Black Bearing radial bearings are machined and assembled to precise tolerances. They are offered in four material/build options to suit a broad range of applications at any budget.
BLACK BEARING - 18307-2RS / 6903/18-2RS RADIAL SEALED BEARING
SPECIFICATIONS
NAME: 18307-2RS / 6903/18-2RS
OUTER DIAMETER: 30mm
INNER DIAMETER: 18mm
HEIGHT: 7mm
Black Bearing radial bearings are machined and assembled to precise tolerances. They are offered in four material/build options to suit a broad range of applications at any budget.
These bearings are best suited to components that undergo continuous rotation - think hubs, bottom brackets, or any part that spins. While they can be used in suspension pivots, the full-complement MAX versions are best suited to this application for optimum load management and longevity.
B3 - CHROME STEEL
B3 bearings are ABEC-3 grade and deliver reliable performance at a sharp price. The quality is comparable to the bearings that are typically specified as original equipment (OE) from many component manufacturers.
B5 - PREMIUM CHROME STEEL
B5 Bearings are ABEC-5 grade. They will upgrade the performance of many stock bearings, rolling faster and smoother with exceptional durability.
B5 STAINLESS - STAINLESS STEEL
The bearing of choice for use in wet conditions. B5 Stainless bearings are highly corrosion-resistant, maintaining consistently smooth and fast performance under challenging conditions.
CERAMIC HYBRID
Upgrade to Black Bearing Ceramic Hybrid bearings for ultimate performance. Premium silicon nitride balls have incredible durability and smoothness. These are precisely assembled into an ultra-low friction bearing unit optimised for competition and premium performance.
