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Tin-Based Babbitt Bushing (babbitt bearing sleeve) is the core load-bearing component in steam turbine shafting and steam turbine sliding bearing systems, whose performance directly determines the operational stability, safety and service life of large rotating equipment. Our high-strength tin-based babbitt alloy bushing uses high-strength alloy steel as the base material, with 90% of the working surface lined with high-density tin-based babbitt alloy, specially engineered for high speed, high temperature and heavy load harsh conditions. It is a critical basic part to protect rotor journals and avoid unplanned downtime for industrial clients.
Our tin-based babbitt alloy bushing delivers excellent anti-galling properties, outstanding embeddability and conformability. Even under fluctuating lubrication or short-term abnormal operation, it effectively protects high-value rotor journals from wear, greatly reducing equipment damage risk and unscheduled maintenance costs for industrial clients.
The inner surface oil groove adopts optimized hydrodynamic design, matched with high-precision machining and manual scraping technology, which can quickly form a stable uniform oil film, effectively reduce friction coefficient and equipment vibration, and significantly improve long-term operation smoothness of steam turbines.
Through precise control of babbitt alloy composition and centrifugal casting process, our products achieve dense alloy structure, strong bonding force and uniform thickness, ensuring long-term operation without peeling or delamination under alternating heavy loads.
Parameter | Standard Value & Customization Range |
Base Material | High-Strength Steel / Alloy Steel (Customizable) |
Lining Material | Premium Tin-Based Babbitt Alloy |
Structure Type | Solid / Split (Customizable) |
Applicable Bearing Types | Journal Bearing, Thrust Bearing, Tilting Pad Bearing |
Key Surface Roughness | Ra0.4 to Ra0.8 |
Non-Destructive Testing | UT / PT Full Inspection |
Adaptation Standard | Compatible with Multiple International Industrial Standards |
Our steam turbine sliding bearing babbitt bushing is widely adapted to core equipment in heavy industries, including industrial steam turbines, power generation steam turbines, marine propulsion systems, hydropower and thermal power units, and various large rotating machinery. It maintains stable performance under long-term harsh working conditions, fully meeting strict requirements of industrial operation, power generation and marine engineering projects.
We strictly select high-strength steel or alloy steel as the base material, with high-purity tin-based babbitt alloy as the lining, with strict element composition control to ensure stable material performance.
The standardized machining process includes:
Rough and finish turning of the outer circle to control roundness and dimensional accuracy;
Precision milling of keyway with strict tolerance control;
Precision boring of inner hole to ensure coaxiality and surface precision;
Manual scraping of working surface to meet oil film formation requirements of white metal bearings.
After finish machining, the inner hole size is measured and calibrated. Measuring tools are used to detect the inner diameter size, ensuring compliance with drawing and technical requirements.
After finishing the main machining process, the bushing is subjected to Ultrasonic Testing (UT), which is used to check whether internal material defects such as inclusions, shrinkage cavities, or cracks are present.
Measurement and Calibration
UT
Relying on mature machining processes and strict quality control procedures, our company can machine the connecting rod bush according to drawings, ensuring good load-bearing capability and operating stability after assembly. This product is widely used in bearing systems of marine, hydropower, thermal power, and various industrial rotating equipment, and is one of the important basic parts ensuring long-term safe operation of the shaft system.
We adopt a multi-layer protective packaging solution:
Inner layer: Critical surfaces are coated with anti-rust oil and wrapped with VCI anti-corrosion paper to isolate air and moisture;
Cushioning layer: Pearl cotton, foam and customized positioning blocks to avoid impact and displacement;
Outer layer: Heavy-duty export wooden case, suitable for sea, land and air transportation.
Fully customized packaging solutions are available according to client requirements, including protection level, cushioning method, fixing structure and outer case design, to adapt to different transportation conditions and project needs.
TOTEM MACHINERY focuses on high-precision bearing component manufacturing for heavy industries, with mature casting and machining processes, strict full-process quality control system and complete non-destructive testing capabilities.
We have long-term service experience for industrial equipment manufacturers, power plant operators, shipbuilding contractors and engineering project integrators worldwide, providing high-reliability products, flexible customization and professional technical support to help clients reduce operation risks and improve equipment efficiency.
