Precision grade ABEC-1, max rpm 34000 with grease. Pre-lubricated with grease, less friction, no maintenance needed. Single-row radial ball bearing for applications that support radial and axial loads. Easily removed and reinstalled. Ideal for moderate load uses such as skateboards, inline skates, scooters, electric motors, bicycle wheels, motorcycle wheels, and various rolling applications. Suitable for replacing worn bearings in skateboards, scooters, inline skates, electric motors, bicycle and motorcycle wheels, automobiles, electric hand tools, and other rolling applications. Please verify dimensions, size, and precision grade to ensure compatibility with your device. This 608-2RS miniature radial ball bearing features red double seals and a steel cage, meeting the ABEC 1 precision standard. This light-duty bearing has an 8 mm bore diameter, a 22 mm outer diameter, and a 7 mm width. Its ABEC 1 precision rating allows for higher speeds and reduced friction compared to less-precise ball bearings. The radial internal clearance is C3, meaning the radial slack between the inner and outer rings is greater than CN (normal), helping to compensate for thermal expansion. Heat-treated for increased hardness and wear resistance. Deep ball grooves in both races support high radial and axial loads. Straight bore design fits standard cylindrical shafts. Nylon cage prevents ball-to-ball contact during operation, reducing friction, vibration, and noise. Removable single-lip contact seals on both sides protect against contaminants and retain factory-applied lubrication. Suitable for use in skateboarding, inline skating, and similar rolling applications. Color: Silver + Black Material: Carbon Steel Size: 8 x 22 x 7 mm Package Contents: 50 x 608-2RS C3 Bearings Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance is +/- 1-3 cm.