RUIST HH258248/HH258210 Tapered Roller Bearing: bore d = 299.975 mm, outer diameter D = 495.3 mm, width/height B = 141.288 mm. All dimensions follow ISO/DIN standards so it drops into existing housings without modification.
Dynamic load rating Cr = 2810 kN and static load rating Cor = 5650 kN. These figures let you calculate the L10 service life under your actual radial and axial loads.
Tapered Roller Bearing of this size are common in electric motors, gearboxes, pumps, conveyors, fans and compressors across heavy-industry plants.
Yes. Because bore 299.975 mm, OD 495.3 mm and width 141.288 mm match ISO dimensions, HH258248/HH258210 is dimensionally interchangeable with major-brand equivalents. Confirm clearance class (C3/C0) before ordering.