The Flooring Expert

WE|Heavy Duty Three Row Roller Slewing Bearing for Tunnel boring machine

The three row roller slewing bearing is a kind of three row’s roller type pivoting support structures as claimed in claim 1 is characterized in that: the inner ring mounting hole that on inner ring, offers axial setting; On outer ring, offer the outer ring mounting hole of axial setting; Distance between the axis of the axis of inner ring mounting hole and main shaft is less than the distance between the axis of the axis of outer ring mounting hole and main shaft ; Offer a last trim ring mounting hole that cooperates with inner ring mounting hole at last trim ring, last trim ring offers trim ring mounting hole on another that cooperates with outer ring mounting hole.

A tunnel boring machine (TBM), also known as a “mole”, is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They may also be used for microtunneling. They can be designed to bore through anything from hard rock to sand. It always use the three row roller slewing bearing.

The slewing bearing can rotate independently in three directions; the slewing bearing has simple, compact and reasonable structure; and the slewing bearing has high cost performance, is convenient to maintain, and satisfies the requirements of accuracy, bearing and multi-function of the device.

Please see attached slewing ring catalogue to find out which model you need.