Timken 48385 Single Row Roller Bearing Cone

The Timken 48385 is a single-row tapered roller bearing cone with a 5-1/4 inch bore, engineered to support heavy combined radial and axial loads in demanding industrial rotating equipment. It is commonly installed in industrial gearboxes, rolling mills, mining and aggregate equipment, construction machinery, heavy-duty axles, and power transmission systems, and it is designed to operate with compatible Timken 48320 family cups (48320, 48320D, or 48320DC) for precise load distribution and long service life. Key specifications include Series 48300; Design Units: Inch; Bore 5.2500 in; Inner Ring Width B 1.5625 in; Cage Material stamped steel; Weight 16.15 lb; Static Radial Load Rating C0 122,000 lbf; Dynamic Radial Load Rating C90 16,500 lbf; Dynamic Radial Load Rating C1 63,600 lbf; Two-Row Dynamic Radial Load Rating C1 111,000 lbf; Two-Row Dynamic Radial Load Rating C90 28,700 lbf; Dynamic Thrust Rating Ca90 9,060 lbf; Maximum Shaft Fillet Radius 0.140 in; Shaft Backing Shoulder Diameter – Frontface da 5.59 in; Shaft Backing Shoulder Diameter – Backface db 5.83 in; Effective Center Location -0.16 in; Geometry Factor Cg 0.121; K Factor 1.82.