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- Diamond Polished lightweight Silicon Nitride Ceramic Balls
- Sealed on both sides to protect against the elements
- Much more durable, lighter, smoother & faster than standard bearings
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Size:35 x 47 x 7 mm 6807
6807 size ceramic ball bearing from World Champions ACER Racing. Commonly used in BB30 adapters but can be used anywhere a 35x47x7mm ball bearing is required.