Cylindrical Roller Radial Bearings - Four-Row Timken 380RX2087

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 RX bearings are four-row construction, having two single flangedouter races and rib rings for roller spacing. This allowsfor complete disassembly for inspection. The RX style is usuallypreferred in bearings above 400 mm bore. Both brass and pin-type cages are available in this bearing style.Most inners are two-piece assemblies. Two outer rings with three rib rings. Two inner rings. Four pin-type steel cages. RX-1 – with lubrication grooves and holes on outer rings. RX-9 – with oil-mist nozzles and O-rings in outer rings. RX-11 – with lubrication grooves, holes and O-rings on outer rings. Specifications Bore d 380 mm Static Load Rating Co 14760000 N Dynamic Load Rating C11 6900000 N Bearing Dimensions O.D. D 540 mm Width B 400 mm Width C 400 mm DUR/DOR F/E 422 mm Type RX-1 Mounting Data Chamfer rsmin 2 mm Chamfer r1smin2 10 mm Angle of Chamfer r1smin 20 º Backing Shaft Diameter ds 412.8 mm Backing Housing Diameter Ds 502 mm Lubrication Data Lubrication Groove g 16.0 mm Lubrication Hole Diameter h 8.0 mm Number of Lubrication Holes 8 Sub Assembly Part Numbers Inner-Ring Set 380ARXS2087 Outer-Ring Set 422RXS2087