Luoyang Xinqianglian Slewing Bearing Co., Ltd.
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Luoyang Xinqianglian Slewing Bearing Co., Ltd.
TBM Main Bearings (Cutter Head Bearings)

TBM Main Bearings (Cutter Head Bearings)

Three-row cylindrical roller bearings for cutter head of tunnel boring machines
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TBM Main Bearings (Cutter Head Bearings)

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.

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Basic Information
  • Material: Typically, 42CrMo4-L is used unless the customer specifies otherwise, with induction hardening applied to the raceways. Other steel grades are available based on customer requirements
  • Manufacturing capacity: The largest bearing processed so far has an outer diameter of 8.010 meters, with a maximum gear module of m=30.
  • Customization: Non-standard products can be customized to meet specific user requirements
  • Repair services: In addition to designing and manufacturing main bearings for TBMs, we also provide inspection and repair services for these bearings
  • Company strengths: We are one of the drafters of the industry standard JB/T14575-2023 for main bearings and has inspected and repaired over 100 main bearings in recent years
TBM Main Bearings (Cutter Head Bearings)
TBM Main Bearings (Cutter Head Bearings)
TBM Main Bearings (Cutter Head Bearings)
Study Cases
Shenyang Metro Project, China
Shenyang Metro Project, China

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

8-Meter Diameter TBM Main Bearing
8-Meter Diameter TBM Main Bearing

LYXQL independently developed and produced an 8-meter diameter TBM main bearing, setting a new benchmark in China for TBM technology

Related Products We Offer

Our main products include wind turbine main bearings, yaw bearings, pitch bearings, gearbox bearings, marine equipment slewing bearings, tunnel boring machine bearings and components, wind turbine shrink discs, and high-speed couplings.

TBM Cutter Head Rotation Drive Discs
TBM Cutter Head Rotation Drive Discs

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.

TBM Main Bearings (Cutter Head Bearings)
TBM Main Bearings (Cutter Head Bearings)

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.

Luoyang Xinqianglian Slewing Bearing Co., Ltd.
Slewing Bearing Solutions

Specialists in bearings for wind turbines, marine equipment, and tunneling machines. We deliver quality, expertise, and reliable service.

sales@lyxql.cc
+86-379-62811060
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Other Products
Slewing Bearings for Large Marine Equipment
Slewing Bearings for Large Marine Equipment Read More
Bearing Components
Bearing Components Read More
Spherical Plain Bearings
Spherical Plain Bearings Read More
Slewing Bearings / Slewing Rings
Slewing Bearings / Slewing Rings Read More
Wind Turbine Bearings
Wind Turbine Bearings Read More
Luoyang Xinqianglian Slewing Bearing Co., Ltd.
Luoyang Xinqianglian Slewing Bearing Co., Ltd.
Slewing Bearing Solutions
sales@lyxql.cc
+86-379-62811060
Contact us
Why Us
  • R&D
  • Manufacturing
  • Quality Control
Service
  • Customized Bearings Production
  • Bearing Mounting & Commissioning
  • Bearing Inspection & Maintenance
  • Bearing Replacement & Repair
  • Spare Parts Supply & Shipping
Products
  • Slewing Bearings / Slewing Rings
  • Spherical Plain Bearings
  • Wind Turbine Bearings
  • Tunnel Boring Machine Bearings
  • Slewing Bearings for Large Marine Equipment
  • Bearing Components
Application
  • Energy
  • Tunneling
  • Ferris Wheel
  • Port Equipment
  • Construction Equipment
  • Mining Equipment
  • Stacker Reclaimer
  • Floating Crane
  • Machine Tool
  • Metallurgical Equipment
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