Light weight, small size, stable and reliable action are the requirements for the braking system of modern railway vehicles. INA needle roller bearings, sealed drawn cup needle roller bearings, thrust needle roller bearings, drawn cup needle roller clutches and support rollers have unparalleled advantages in braking systems and can lead the development of new products. Schaeffler Industrial offers a wide range of bearing options for brake calipers, wedge brakes, brake tie rod adjusters, wear compensation systems or brake compressors. In the above cases, standard specimen bearings or special bearings with integrated other functions are often used. Because of their safety concerns, these brakes and bearings must also function properly in extreme climatic conditions. Needle roller bearings consist of machined outer rings, needle rollers and cage assemblies. If necessary, needle roller bearings can be combined with a separate inner ring. Low radial section height enables compact design. It can be supplemented with grease through the outer ring and can also be equipped with seals on request. It has a very high radial load capacity. Open and sealed drawn cup needle roller bearings consist of thin-walled outer rings, needle rollers and cage assemblies, and can also be equipped with seals on request. Compared with needle roller bearings, this type of bearing can have a smaller radial section height. Sealed drawn cup needle roller bearings have a closed end to prevent the ingress of moisture and dirt. Modern brakes feature automatic compensation for brake pad wear. This unit incorporates a drawn cup needle roller clutch for wear compensation. Bolt type rollers, support type rollers, ball bearing type rollers are used in wedge brakes and are positioned by inner rings or bolts. The optimized outer ring profile can effectively reduce the contact pressure. Suffix Description ZW Double Row PP has plastic flat washers and molded sealing lips on both sides of the support rollers to form a tertiary seal. RR Corrosion-resistant design with INA coating RS Contact seal on one side 2RS Protective lip seal on both sides of the backed roller 2RSR Radial contact lip seal on both sides of the backed roller Other designs available on request .