Timken 48385 Tapered Single Row Roller Bearing Cone

Timken 48385 is a precision single-row tapered roller bearing cone engineered to support heavy combined radial and axial loads in demanding industrial rotating equipment. It features a 5.2500 in bore (133.350 mm) and a 1.5625 in inner ring width (39.688 mm), weighs 16.15 lb (7.33 kg), uses a stamped steel cage, and has a maximum shaft fillet radius of 0.140 in (3.600 mm); it is designed to mate with Timken 48320, 48320D, and 48320DC bearing cups for reliable replacements in industrial gearboxes, rolling mills, mining equipment, construction machinery, and other heavy-duty power transmission systems. Key ratings include a dynamic radial load rating of 16,500 lbf (73,300 N) to 63,600 lbf (283,000 N), two-row dynamic radial load ratings of 111,000 lbf (492,000 N) and 28,700 lbf (128,000 N), a dynamic thrust rating of 9,060 lbf (40,300 N), and a static radial load rating of 122,000 lbf (542,000 N). The cone belongs to Timken's 48300 series and is intended for use in industrial gearboxes, rolling mills, mining and aggregate equipment, construction machinery, and other heavy-load power transmission systems where precise shaft alignment and long service life are critical.