Cylindrical Roller Radial Bearings - Four-Row Timken 880RXK3366

Описание

Timken’s four-row cylindrical roller bearings are designed for the rigors of daily use in applications where moderate and high speeds, high radial loads, elevated temperatures and debris are constant challenges. Designed with well-balanced cross sections, these bearings provide high-radial-load capacity within the bearing envelope. The radial internal clearance (RIC) for the bearing assembly must be included when ordering either a) the complete assembly or b) with the inner-ring set. It is advisable to order the inner-ring set independent of the outer ring set when the final grind of the inner-ring O.D. is accomplished after mounting on the roll neck. The most recent RYL and RXL designs are available in sizes upto 340 mm bore and specifically designed for long-product mills.Standard steel cage and enhanced design features are includedto maximize bearing life, reduce roller drop and optimize bearinghandling. Two outer rings with three rib rings. One-piece tapered bore inner ring. Four pin-type steel cages. Lubrication grooves and holes on outer rings. RXK-1 – with oil-mist nozzles and O-rings in outer rings. Specifications Bore d 880 mm Static Load Rating Co 66400000 N Dynamic Load Rating C11 26600000 N Bearing Dimensions O.D. D 1180 mm Width B 750 mm Width C 750 mm DUR/DOR F/E 945.3 mm Type RXK-2 Mounting Data Chamfer rsmin 7.5 mm Chamfer r1smin2 8 mm Angle of Chamfer r1smin 0 º Backing Shaft Diameter ds 930 mm Backing Housing Diameter Ds 1105 mm Lubrication Data Lubrication Groove g 27.0 mm Lubrication Hole Diameter h 15.0 mm Number of Lubrication Holes 20 Sub Assembly Part Numbers Inner-Ring Set 880ARVKS3366 Outer-Ring Set 945RXS3366