Combined Thrust & Journal Bearings

Integrated Radial and Axial Load Support for High-Performance Rotating Equipment

Dawopu Combined Thrust & Journal Bearings are advanced hydrodynamic bearing assemblies designed to support both radial loads and axial thrust loads within a single integrated unit. These precision-engineered bearings are widely used in heavy-duty rotating machinery where compact design, high load capacity, and long-term operational stability are essential.

In many industrial machines such as steam turbines, compressors, pumps, generators, and large electric motors, rotating shafts are subjected to complex loading conditions. Radial forces are generated by shaft rotation and imbalance, while axial thrust loads arise from fluid dynamics, pressure differences, and rotor weight. A combined thrust and journal bearing system integrates both bearing functions into a unified housing, ensuring precise rotor positioning, improved load distribution, and simplified machine design.

Dawopu designs and manufactures high-performance combined bearing systems using advanced hydrodynamic lubrication principles. During operation, a stable oil film forms between the rotating shaft and the bearing surface, preventing metal-to-metal contact while providing excellent damping and vibration absorption. This oil film lubrication mechanism significantly reduces friction, wear, and heat generation, enabling reliable long-term operation even in demanding industrial environments.

Our combined thrust and journal bearings are engineered for high-speed rotating equipment operating under continuous service conditions. The integrated design helps reduce installation complexity, minimize alignment errors, and improve machine reliability.

Key Features of Dawopu Combined Thrust & Journal Bearings

Integrated Bearing Design

The combined configuration allows a single bearing assembly to simultaneously handle radial loads and axial thrust forces, reducing the number of components required in the rotor support system. This compact structure simplifies installation and improves mechanical efficiency.

High Load Capacity

Dawopu combined bearings are designed to support large radial loads and high thrust forces generated by heavy industrial rotors. The optimized hydrodynamic lubrication geometry ensures stable load distribution across the bearing surface.

Hydrodynamic Oil Film Lubrication

The bearing operates using a full fluid film lubrication system, creating a pressurized oil layer that separates the rotating shaft from the bearing surface. This lubrication method reduces wear, enhances durability, and provides excellent vibration damping.

High-Speed Stability

These bearings are suitable for high-speed rotating machinery, maintaining shaft alignment and rotor stability even under dynamic load variations.

Excellent Thermal Management

The bearing design incorporates oil grooves, cooling channels, and optimized surface geometry to efficiently dissipate heat generated during operation, ensuring reliable performance under elevated temperatures.

Long Service Life

Using high-quality bearing materials and precision machining, Dawopu combined bearings deliver extended operational life with minimal maintenance requirements.

Typical Technical Specifications

The exact parameters depend on the specific application and equipment design. However, typical operating ranges for Dawopu Combined Thrust & Journal Bearings include:

Shaft Diameter Range
50 mm – 600 mm (custom sizes available)

Maximum Radial Load Capacity
Up to 500 kN or higher depending on design

Maximum Axial Thrust Load
Up to 800 kN depending on bearing size and configuration

Operating Speed Range
1,000 – 15,000 RPM (application dependent)

Lubrication Type
Hydrodynamic oil film lubrication

Operating Temperature Range
-20°C to 200°C depending on lubrication system

Bearing Materials

Typical bearing lining materials include:

• Babbitt (White Metal)

• Tin-based bearing alloy

• Copper alloy backing

• Steel bearing housing

Surface Finish

Precision-machined bearing surfaces ensure optimal oil film formation and stable rotor support.

Applications of Combined Thrust & Journal Bearings

Dawopu combined bearing systems are widely used in industrial equipment that requires simultaneous radial and axial load support. Typical applications include:

• Steam turbines

• Gas turbines

• Industrial compressors

• Power generation turbines

• Centrifugal pumps

• Large electric motors

• Turbo-expanders

• Petrochemical rotating machinery

• Marine propulsion systems

• Heavy industrial gearbox systems

These bearings are especially suitable for equipment operating under continuous duty cycles, high loads, and high rotational speeds.

Industries Served

Dawopu supplies combined thrust and journal bearing solutions for a wide range of heavy industries worldwide.

Power Generation

Used in steam turbines, generators, and turbine-driven equipment in thermal and combined-cycle power plants.

Oil and Gas

Applied in compressors, pumps, and rotating equipment used in refineries and petrochemical facilities.

Marine and Offshore Engineering

Supporting propulsion systems, offshore pumps, and marine turbine machinery.

Petrochemical Processing

Ensuring stable rotor operation in process compressors and rotating plant equipment.

Heavy Industrial Manufacturing

Used in steel mills, mining operations, and large-scale industrial processing machinery.

Water Treatment and Pumping Systems

Reliable support for high-capacity pumps and fluid handling equipment.

Engineering and Manufacturing

At Dawopu, all combined thrust and journal bearings are manufactured using advanced machining technology and strict quality control standards. Each bearing assembly undergoes careful design analysis to ensure optimal oil film performance, load capacity, and long-term reliability.

Our engineering team can also provide custom-designed bearing solutions tailored to specific rotor systems, operating conditions, and equipment requirements. Customization options include bearing dimensions, material selection, lubrication system design, and load capacity optimization.

Through continuous engineering innovation and strict manufacturing standards, Dawopu delivers reliable bearing solutions for critical rotating machinery around the world.