Feature

●Inner Dia(d): 17mm
●Outer Dia(D): 30mm
●Width Dia(B): 7mm
●Feature: High precision, High speed, Low noise,
●Application: Bicycles, Non-standard Equipments, ...etc

[10pcs 6801RS 12x21x5 Silver]

Description

Model NO.: 6903-2RS
Inner Dia(d): 17mm
Outer Dia(D): 30mm
Width Dia(B): 7mm
Material: Chrome Steel
Sealed Type: 2RS Black Rubber Seals
Precision: ABEC-3
Lubrication: Grease
Feature: High precision, High speed, Low noise,
Application: Bicycles, Non-standard Equipments, ...etc
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