This bearing is made of chrome steel which is more durable and better than carbon steel. Its deep ball grooves in both races support high radial and axial loads,its straight bore fits conventional cylindrical shafts, and its nylon cage prevents the balls from coming into contact with each other during use, reducing friction, vibration, and noise. The Removable rubber contact seals on both sides protect well against exposure to dust, dirt, and moisture and retain lubrication applied at manufacture. This bearing has an 8 mm bore diameter, a 22 mm outside diameter, and a 7 mm width. Its precision is rated at ABEC 1 by the Annular Bearings Engineers Committee (ABEC), allowing higher speeds and creating lower friction than less-precise ball bearings, and its radial internal clearance is C3 for radial slack between the inner and outer rings is greater than CN (normal) to compensate for thermal expansion. This ball bearing is suitable for use in skate boarding, inline skating, and other skating applications.
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