TBM Main Bearings (Cutter Head Bearings)
Three-row cylindrical roller bearings for cutter head of tunnel boring machines
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In tunnel boring machines (TBMs), the cutter head main bearing is an important component that plays a central role in the operation of these machines. The bearing supports and guides the rotation of the main shaft, enduring significant axial loads, radial forces, and overturning moments. This type of bearing is predominantly used in TBMs, pipe jacking machines, and other tunneling equipment.
The cutter head main bearing features a three-row cylindrical roller structure and is available in three forms: internal gear, external gear, and gearless. These bearings are composed of rings (inner and outer rings), rollers, cages, and seals.
A 3-meter diameter TBM main bearing was successfully developed and deployed for the Shenyang Metro construction project. This bearing was important in supporting the large-scale tunneling operations required for the metro system
LYXQL independently developed and produced an 8-meter diameter TBM main bearing, setting a new benchmark in China for TBM technology
The drive disc is a key component in tunnel boring machines (TBMs). This essential part connects the TBM’s main bearing with the cutter head, ensuring smooth transmission of force and torque.
In tunnel boring machines (TBMs), the cutter head main bearing is an important component that plays a central role in the operation of these machines.
Specialists in bearings for wind turbines, marine equipment, and tunneling machines. We deliver quality, expertise, and reliable service.
