Bearings
TECHNICAL SPECS
Model: 638 2RS
Structure: Deep Groove Ball
Material: Bearing Steel
Grade: ABEC-7
Bore Dia (d): 8 mm
Outer Dia (D): 28 mm
Width (B): 9 mm
Closures: Sealed (2RS)
Lubrication: Grease
Clearance: C0
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Hign-concerned Chemical : None
Material : Bearing Steel
Model Number : 638RS
Bearing Model : 638RS
Bearing Sizes : 8x28x9 mm
ID (inner diameter) : 8 mm
OD (outer diameter) : 28 mm
Width : 9 mm
Bearing Grade : ABEC-7
Bearing Characteristics : Silent operation and high speed
Bearing Material : Bearing Steel
Ball Material : Bearing Steel
Bearing Type : Deep Groove Ball Bearing
Application : Bicycle Bottom Brackets