BALL-BEARING DESIGNED TO EQUIP A WHEEL OF A ROLLER SKATE OR SKATE BOARD OR THE LIKE

摘要

Ball bearing (1) of the present invention has the thickness (50) corresponding to wheel to being equipped and including the raceway (17) at least three balls, and it includes directly directly for wheel (50) to be mounted on object equipped with the wheel (50) to the bearing with internal part (5) that the bearing of external component (3), which includes that the main body (33) of tool (29) connects,.