Spherical Roller Bearings NTN with bores from 25 to 1800 mm, available with cylindrical or tapered bore. Most tapered bore bearings require the use of an adapter or withdrawal sleeve for mounting on the shaft. Most bearings are equipped with a groove and lubrication holes in the outer ring. Bearings with metal cages can operate at temperatures of up to +200°C. The dimensional stability of the steel is guaranteed by means of specific heat treatment.Spherical Roller Bearings NTN is available in a wide range of series designed to cater to the broadest spectrum of usages depending on your requirements in terms of loads, speeds and dimensions.