SKF IR 40X45X20 Inner Ring, Metric, 40mm Bore, 45mm OD, 20mm Width

This SKF needle roller bearing inner ring with mounting chamfers serves as an inner roller raceway in applications where the shaft cannot be used as a raceway, and is used with SKF metric series needle roller bearings. It is made of hardened and ground steel, and has mounting chamfers to assist in bearing installation. This SKF inner ring meets International Organization for Standardization standard ISO 492:2002 for quality assurance, and is an accessory for use with SKF metric series needle roller bearings, which are used in various applications, such as automotive and truck transmissions, agricultural and construction equipment, pumps and compressors, and two-cycle engines, among others.Roller bearings use rolling elements to maintain a separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. Roller bearings can be open on both ends (a shaft can pass through) or open on one end and closed on the other. An open end can be sealed or shielded to protect the bearing from solid contaminants and moisture that could reduce its lifespan. If an end is sealed, the sealing component is an elastomer lip that contacts the shaft. If it is shielded, the shielding is a non-contact lip, usually made of metal. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.SKF manufactures bearings, seals, mechatronics, and lubrication systems. The company, founded in 1907 and headquartered in Goteborg, Sweden, meets International Organization for Standardization (ISO) standards 9001, 14001, and TS 16949 for quality assurance.

• Inner ring to provide a hardened and ground raceway for a needle roller bearing
• Use with SKF metric series needle roller bearings (sold separately)
• Mounting chamfers assist in bearing installation