30218 Tapered roller bearing

A single row tapered roller bearing has an outer ring, an inner ring and a set of tapered rollers enclosed by a basket cage. The outer ring can be separated from the inner ring components. In accordance with the ISO dimensions standard for tapered roller bearings, any standard type of tapered roller bearing outer ring or inner ring components should be able to achieve international exchange with the same type of outer ring or inner ring components. That is, the outer ring of the same type in addition to the external size, tolerance should comply with ISO492 (GB307) provisions, the cone Angle of the inner ring component, component cone diameter must also comply with the relevant provisions of the exchange.