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The ROTOR UBB 4630 with steel bearings for BBRight Press Fit frames is part of the high-end ROTOR UBB family (universal bottom bracket) and is compatible with all ROTOR cranks that have a 30 mm axle diameter.
Unlike most other Press Fit bearings, it uses a threaded sleeve to connect both bearing cups. This connection reduces the tension usually exerted onto Press Fit sleeves. It also balances the size tolerance of the bottom bracket shell, so the bearings are more parallel, for smoother running and less noise.
The outer bearing cups also increase the stiffness and the excellent fit of the bearing/sleeve unit reduces the load on the bearings, for increased durability. In addition, the inner sleeves protect against damages or friction that cables or hoses might otherwise cause to rotating parts.
• Suitable for road bike frames with BBright Press Fit (79 mm width, Ø 46 mm)
• Suitable for ROTOR cranks with a 30 mm axle
• Material: 7075 T6 aluminium, steel
• Weight: approx. 109 g
In the box:
• 1 ROTOR UBB 4630 bottom bracket for BBright Press Fit
ONLY compatible with ROTOR cranks with an axle diameter of at least 30 mm. NOT compatible with cranks from other manufacturers!
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