Roller bearing for at least two rows of rolling elements, in particular for tunneling

摘要

The roller bearing comprises an inner ring 14, an outer ring 16, at least one row of rolling elements 18, 20, 22 disposed between the rings to form an axial stop adapted to transmit axial forces and a series of rolling elements 24, which are arranged between the rings to form a radial stop, which is capable of transmitting radial forces. The inner ring includes an annular groove 36 which extends inwardly from an outer surface 14c of the ring and forms a raceway for the rolling elements 24 of the radial stop.