Part number: 6004-2RS Dimension (d): 20mm Dimension (D): 42mm Dimension (B): 12mm Dynamic Load Rating: 2120 LBS Static Load Rating: 1140 LBS Limiting Speed (Grease): 10000 RPM Weight: 0.067kg Brand:VSPZ/Customized brand Item: Chrome Steel-Radial Ball Bearings Type: Deep groove ball bearings Closures: 2 Rubber Seals Lubrication: Self Lubricated (Grease) Lightweight, stable and with good spinning characteristics. The deep groove ball bearing 6004-2RS is a true all-rounder and, due to its balanced properties, it is suitable for a variety of applications. Main dimensions according to DIN 625-1. Wheel hub bearings are key components for automobile, which are applied to chassis system. The main function is to support the weight and guide the rotation of wheel hub. They allow each wheel to spin freely and at the desired speed. Wheel bearings take a steady amount of abuse. They support the entire weight of your vehicle while traveling over rough roads, potholes and other rugged terrain. Wheel bearings are one of the longest lasting steering and suspension parts, but it really depends on driving habits, driving conditions and other factors.