Timken 30308 Single Row Tapered Roller Bearing

The Timken 30308 single-row metric tapered roller bearing is a matched cone-and-cup assembly (X30308 cone and Y30308 cup) designed to support combined radial and axial loads while maintaining precise shaft alignment. It features a 40 mm bore, 90 mm outside diameter, and 25.25 mm overall width (inner ring width 23.00 mm; outer ring width 20.00 mm), weighs approximately 0.70 kg, and uses a pressed steel cage for durability. The bearing set delivers a dynamic radial load rating of 117,000 N (C1) and 30,300 N (C90), a static radial rating of 102,000 N (C0), and a dynamic axial load rating of 17,900 N (Ca90), making it suitable for heavy-duty applications. Its separable cone and cup design simplifies installation, adjustment, and maintenance, while the precision-ground raceways and optimized internal geometry support long service life in gearboxes, wheel hubs, conveyors, electric motors, pumps, and other power-transmission equipment.