Black Bearing is a famous manufacturer of high quality bearing dedicated to bicycle and urban sports. This bottom bracket fit all frames with T47 threading bottom bracket interface and it's compatible with both Sram DUB spindle cranksets wich diameter is 28.99 mm. Each Black Bearing bottom bracket is available in 3 different bearing quality : B5 Bearing, B5 Stainless Bearing or Ceramic Bearing.
Features
- Cups material : Machined aluminium
- Cup installation : Threaded in a T47 Frame
- Frame compatibity : with T47 Thread and 68/73 mm width
- Crankset compatibility :
- 28.99 mm diameter spindle (Sram DUB)
- GXP 22/24 mm spindle thanks to the adapter that comes with the BB (type Truvativ, Sram)
- Bearing quality :
- B5
- B5 Inox
- Céramic
- Colour : Black
- Mounting key delivered
Bearing features
- Seal « 2RS » : Bearing with rubber seal on both sides that provides a better seal with optimized rolling friction
- Rectified Ball bearing groove to reduce friction and increase life time
- High quality inner lube
- High quality ball bearing (ABEC 5)
- Ball bearing reatainer: steel cage
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