Withstanding the toughest of operating conditions in metal production. ROLLING MILLS ,the roll-neck bearings feature a four-row, taper setup that effectively supports both radial and axial loads. Most bearings are available with seals, and the bearing boxes can be designed in ROLLING BEARINGS FOR STEEL MILLS compact configurations since thrust bearings are eliminated. Ｒoll-neck bearings are also available with EA™ surface treatment and RustGuard™ corrosion preventative for especially harsh applications. EA prefix designates the use of case-carburized bearing steel that has a special surface heat treatment modification. This combination gives the bearing significant protection against shock loading, as well as greatly extended fatigue life when operating in contaminated lubrication. If corrosion is a concern, RustGuard™ is a manganese phosphate SKF 6312 Bearing coating applied to bearing rings and rolling elements. This special coating extends bearing life by up to 100% and is especially effective for controlling downtime-induced rust.