Bearings with " W " groove profileW … / W… X Series Track Roller Bearings are the main components of the Linear Motion System,Website:http://www.rihooindustry.com, can be widely used in the industrial robot, cutting machine, motion track, production flow and so on.The surface of the outer ring is the " W " profile formed by the two " V " with an angle of 90 degrees. The internal or external side face can be matched separately with the concave or protrudable or cylindrical track.Bearings feature the internal design of the double row angular contact ball bearing and a thick-walled outer ring.Bearings are made of the high – quality bearing steel, Can provide the wheels with the concentric or eccentric bushing, the wheels also can be made from the corrosion resistance stainless steel.