Black-bearing Black Bearing 61903-2RS 17 X 30 X 7 Mm

Black Bearing B5 bearings are steel ball bearings, they are fitted as standard by the vast majority of manufacturers of cycles (frames, wheels, pedals …), of urban sports (Rollerblades, scooters, Skateboard, BMX … ), motorcycle, quad, model making ….
The bearings of the B3 range are manufactured in the largest factories, they have been selected for their reliability, efficiency and their quality / price ratio.

A replacement bearing compatible with your original bearings.

Details:

• Dimensions: 17 x 30 x 7 mm
• Steel (standard)
• ?2RS? seals: Latest generation double lip labyrinth seals. Better resistance to water and dust, combined with low friction.
• Ground bearings for better fluidity and longer life.
• Superior quality lubricant.
• High quality balls, label “abec 5”.
• Maintains balls by metal cage.
• Sold individually

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