Description
6203ZZ bearings are used in a variety of applications including wheels, transmissions, gearboxes, and various other GY6/QMB139 engine components. The 6203ZZ series is sometimes referred to as the 6203Z series. They are single-row, deep groove ball bearings. Designated as light-weight bearings, they come with 17 mm bore hole inner diameter.
Check your existing bearings for the series number, which is usually etched directly onto the side of the bearing.
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Specifications
Diameter (Inner): 17 mm
Width: 12 mm











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