Profile: SKF (U.K.) Ltd. is a supplier of rolling bearing, seals, mechatronics and lubrication systems. We are an ISO 9000 certified company. We focus on linear motion products, high precision bearings, spindles, and spindle services for the machine tool industry. Our hybrid bearings have rings of bearing steel and rolling elements of bearing grade silicon nitride. In addition to being electric insulators, hybrid bearings have a higher speed capability. Their rolling elements weigh less and have lower inertia. This means less cage stress during rapid starts & stops, and also lower friction at high speeds. Lower friction means cooler running and longer lubricant service life. Hybrid bearings are also suitable for high rotational speeds. Hybrid bearings perform well when lubricated with ultra thin film forming media such as refrigerants enabling oil-free designs. Our needle roller thrust bearings are fitted with a form-stable cage to reliably guide and retain a large number of needle rollers. The diameter deviations of the rollers within one assembly are within 2 µm, enabling these bearings to accommodate heavy axial loads and shock loads. We supply needle roller thrust bearings in two designs: namely, needle roller & cage thrust assemblies, and needle roller thrust bearings with a centering spigot.