This 6203-2RS has deep groove geometry for high speeds and supporting both radial and axial loads. Its steel construction makes it and resistant to deformity under heavy loads. The rubber seals on both sides of the bearing keep lubricant in and contaminants out, and it comes pre-lubricated so that no additional lubrication is required. Feature - - Material: Steel. - Size: About 4 * 4 *1.2 mm / 1.57 * 1.57 * 0.47 inch (L * W * H). - Applications: involve combined radial and axial loads and a need for high running accuracy at high rotational speeds. Such applications include clutches, drives, , compressors, pumps, turbines, and printing and textile machines, among others. - Commonly used for electric motors, wheel bearings, agricultural, conveying and much more. - Usable with: All RC Cars, Heli, and Planes such as / / / HPI / and other electronic appliances. Package list: 1 * Pack of 2pcs 6203-2RS Shielded Deep Groove Ball Wheel Bearing ATV DIRT BIKE