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Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Tel: 021-51099639
Fax: 021-51861291
24 hour hotline: 15001823721
Postcode: 410205
Enterprise QQ: Click here to send me a message Pre sale  Click here to send me a message After sale
Email: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China

Shaanxi Yuwei Bearing Manufacturing Co., Ltd
Tel: 029-86696506
Fax: 02890
Enterprise QQ:  Click here to send me a message Pre sale  Click here to send me a message After sale
Email: sales@gifudayo.com
Website: www.ywbearings.com
Address: Qinhan new town free trade zone, Xixian new area, Shaanxi Province

Ceramic ball bicycle bearing

We produce high-precision ceramic ball bicycle bearings, used in various professional high-end racing bicycles, to maximize the potential of bicycles.

Customer type:

*Professional racing bike industry (road, time trial and mountain bike)

*The original manufacturer and manufacturer of bicycles and related accessories.

Product features of ceramic hub bearings for bicycles

Seal: 2 rubber seal rings

Accuracy class: abec-5

Ceramic ball grade: G5 (the standard roundness grade range of ceramic ball is from 2000 to 3, the smaller the number, the higher the accuracy)

Bearing ring material: chrome steel 52100

Ball material: silicon nitride ceramic ball



608 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 8mm outer diameter 22mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


609 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 9mm outer diameter 24mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


626 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 6 mm, outer diameter 19 mm, width 6 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

C3: radial clearance

Application: bicycle gear


686 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 6mm outer diameter 13mm width 5mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: pedals


688 2RS hybrid ceramic bicycle bearing

5mm width: 16mm inside diameter

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


699 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 9mm outer diameter 20mm width 6mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6000 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 10 mm outer diameter 26 mm width 8 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6001 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 12mm outer diameter 28mm width 8mm

Bearing material: chrome steel 52100

Silicon nitride ball ceramic material

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6800 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 10 mm outer diameter 19 mm width 5 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6801 2RS hybrid ceramic bicycle bearing

Size: inner diameter 12mm, outer diameter 21mm, width 5mm

Bearing material: chrome steel 52100

Silicon nitride ball ceramic material

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6802 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 15mm outer diameter 24mm width 5mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6803 2RS hybrid ceramic bicycle bearing

Size: inner diameter: 17mm, outer diameter: 26mm, width: 5mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6804 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 20 mm, outer diameter 32 mm, width 7 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6805 2RS hybrid ceramic bicycle bearing

Dimensions: inside diameter 25 mm outside diameter 37 mm width 7 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6805n 2RS hybrid ceramic bicycle bearing

Dimensions: inside diameter 25 mm outside diameter 37 mm width 6 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub, crank


6806 2RS hybrid ceramic bicycle bearing

Dimensions: inside diameter 30mm outer diameter 42mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6808 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 40mm outer diameter 52mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub, earphone


6900 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 10 mm outer diameter 22 mm width 6 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6901 2RS hybrid ceramic bicycle bearing

Size: inner diameter 12mm outer diameter 24mm width 6mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6902 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 15mm outer diameter 28mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Class: ABEC5 accuracy

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6903 2RS hybrid ceramic bicycle bearing

Size: inner diameter: 17mm, outer diameter: 30mm, width: 7mm

Bearing material: Chrome 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

SRL: Japanese grease

Radial clearance: C3

Application: Bicycle hub


6903 (29.5) 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 17 mm outer diameter 29.5 mm width 7 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


6904 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 20 mm outer diameter 37 mm width 9 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


63800 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 10 mm outer diameter 19 mm width 7 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


Mr1526 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 15mm outer diameter 26mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


Mr17287 2RS hybrid ceramic bicycle bearing

Dimension: 7 mm, inside diameter: 7 mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber sealing

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


Mr18307 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 18mm outer diameter 30mm width 7mm

Bearing material: Chrome 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


Mr2437 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 24mm outer diameter 37mm width 7mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


R4 2RS hybrid ceramic bicycle bearing

Dimensions: 1 / 4 x 5 / 8 x. 196 inch

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber sealing

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


R6 2RS hybrid ceramic bicycle bearing

Dimensions: 3 / 8 x 7 / 8 x 9 / 32 inch

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


R8 2RS hybrid ceramic bicycle bearing

Dimensions: 1 / 2 x 1-1 / 8 x 5 / 16 inch

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub


607 2RS hybrid ceramic bicycle bearing

Dimensions: inner diameter 7mm outer diameter 19mm width 6mm

Bearing material: chrome steel 52100

Ball material: silicon nitride ceramic ball

Retainer material: reinforced nylon

Sealing form: rubber seal

Sealing material: Rubber

Accuracy class: ABEC5

Ball rating: G5

Grease lubrication: Japan synergetic SRL grease

Radial clearance: C3

Application: Bicycle hub

 Shanghai miniature bearing
Shanghai Yuwei Bearing Co., Ltd. (Headquarters)
Tel: 021-51099639
Fax: 021-51861291
Email address: yw@gifudayo.com
Address: 2758 Songjin Road, Zhangyan Town, Jinshan District, Shanghai, China
Shaanxi Yuwei Bearing Manufacturing Co., Ltd
Tel: 029-86696506
Fax: 02890
Email address: sales@gifudayo.com
Address: Qinhan new town free trade zone, Xixian new area, Shaanxi Province
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