CRB is separable bearing for easy installation and removal. Comparing with same dimension ball bearing, CRB has bigger load capability. CRB with cage can run under heavy radial load and high speed. Full complement bearing is for low speed and heavy load application. Per the rows of roller, we have single row, double row and four rows options. The most widely used one is single row with cage. This kind of bearing is easy for installation and removal especially interference fitting applied to shaft and housing. Contact between roller and raceway is modified line contact and removes edge force.
Single Row CRB Introduction
For single row CRB, rollers are always guided by solid rib.
Double rows CRB introduction
this kind of bearing has advantage like compact geometry, good stiffness, heavy load capability and small deformation under load etc
Four rows CRB
Four rows CRB is installed on roll neck with interference fit especially high rolling speed mill.