Cema Bearing #6806 (30 x 42 x 7mm)


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CEMA SRC Bearing series are specially designed for bicycle related applications such as wheel hubs, bottom brackets, and chain tensioner pulleys.

Ceramic Bearings have been proved to reduce riders pedalling watts. CEMA SRC ceramic bearing series use G5 grade super high roundness silicon nitride ceramic balls, to meet the highest cycling requirements and bearing clearance. The seal design and excellent lubrication delivers a smooth and durable life-span.

  • Dimensions: 30 x 42 x 7mm
  • Chrome steel or ceramic available
  • BB30 and PF30