URB bearing all come in a wide variety of configurations and materials, which include, cast iron, ductile iron , stainless steel, thermoplastic and nickel-plated. Roller bearing split housings (plummer blocks) with adaptors are also available. URB bearing is working to develop special URB Slewing Ring Bearing products that match customer requirements, and manufactures products according to demand and specifications. Among the range of products the company offers: elctric motors, track cover components, steel wire rope & accessories, plastic bearings, slewing ring, pushback wheels and many more. URB series slewing bearing specialize in KOYO 6304 Bearing slewing bearing,slewing ring bearing，slewing ring ... URB series slewing bearing. Specification and drawing of Cross roller slewing bearing.