Hydropower Bearing – Self Lubricating Bearing

Hydropower Bearings Will Not Swell In Hydroelectric Projects, Nor Will They Deform Or Creep Under Load In Wet Environments. It Is The Ideal Bushing And Bearing Material For Harsh Conditions.

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In the water conservancy project, the connection between the Rolling Wheel and the gate is completed by the wheel shaft, to make the roller rotate with as little friction resistance as possible, the roller is equipped with a self-sliding bearing in the shaft hole. Graphite plugged self-lubricating bearing can meet the high load, lubrication difficulties or can not be lubricated, high-temperature work, and other harsh working conditions.

Hydropower Bearing
Hydropower Bearing

Self-Lubricating Hydropower Bearing in Hydro Power Plants

Hydropower plants are complex systems with numerous moving parts, and maintaining these components can be a daunting task. In particular, the sliding areas in guide vane bearings and vane operating mechanisms are subject to continuous wear and tear. Traditionally, lubricating these components involved the use of grease, which not only added to maintenance loads but also posed a risk of polluting the river water.

For movable blade water turbines, such as Kaplan turbines, lubrication was essential to support the vanes and operating mechanisms. However, this introduced another challenge – the risk of oil leakage into rivers if the runner vane shaft seal packing was compromised. To address these concerns, self-lubricating bearings have gained prominence in configuring sliding areas in runner vane bearings and vane operating mechanisms.

Self-Lubricating Hydropower Bearing in Hydro Power Plants
Self-Lubricating Hydropower Bearing in Hydro Power Plants

Lead-Free Solid Lubricants for Enhanced Performance

Currently, self-lubricating bearings embedded with lead-free solid lubricants are widely used in various critical components of hydropower plants, including Wicket Gate Bushings, Runner Blade Hub Bushings, and vane operating mechanisms.

lead-free solid lubricants like SL464LT, offering improved initial conformability in underwater and minute oscillating motion conditions. These advanced lubricants possess increased spreadability, fluidity, and enhanced lubrication film formation capabilities. Importantly, they achieve this by utilizing the heat generated during relative sliding motion between the bearing and shaft.

The result? Lower and more stable frictional coefficients compared to conventional solid lubricants. Even in low-temperature underwater environments, where traditional materials may falter, these new lead-free solid lubricants excel, further reducing friction and ensuring smooth operation.

Specialized Solutions for Hydropower

The Unseen Heroes of Dams, Gates, and Locks: Self-Lubricating Bearings

Dam, gate, and lock systems often operate under high loads and low-speed conditions, making traditional lubrication methods impractical. Self-lubricating bearings excel in such scenarios, ensuring smooth and reliable operation even under these challenging circumstances.

  • Self-lubricating, avoiding water contamination

  • Outstanding Wear Resistance

  • Dry running – important for pump start-up and priming

  • Low coefficient of friction eliminates vibration and stick-slip effects

  • Long life with little downtime.

  • Self-lubricating bearings are available in a range of standard dimensions, making them adaptable to the specific needs of different dam, gate, and lock systems.

Self-Lubricating Bearings for dams and gates

Bearings For Hydropower

Hydropower bearings are specialized mechanical components used in hydropower plants to support and guide rotating machinery, such as turbines, generators, and shafts. These bearings allow the equipment to operate efficiently and with minimal friction, ensuring smooth and reliable energy production.

Gate Stem - Guide Roller Bushing Material: Graphite-Impregnated Bronze Bushing

Gate stems are commonly found in industrial settings where the controlled flow of fluids or materials is essential. These stems are responsible for the movement of gates and valves, regulating the flow and ensuring operational efficiency.

Graphite-impregnated bronze bushing is a popular choice for gate stem applications due to its unique properties. It consists of bronze material infused with graphite particles, offering enhanced lubrication and wear resistance.

Reduced Friction

Reduced Friction: The presence of graphite particles ensures smooth movement, reducing friction and wear on the gate stem.

Enhanced Durability

Enhanced Durability: Graphite-impregnated bronze bushing exhibits excellent wear resistance, prolonging the lifespan of gate stems.


The graphite particles provide inherent lubrication, eliminating the need for frequent maintenance and lubrication.


The role of the hydraulic turbine generator guide bearing is: to bear the radial mechanical unbalance force and electromagnetic unbalance force of the rotating part of the unit, to maintain the stable operation of the main shaft of the unit within the bearing clearance.

Dam Gate

Radial Gate Trunnion Bushing, Roller Dam Gate Roller Bushing

Excellent Wear Resistance/Extended Service Life

Oil-Free And Lead-Free Self-Lubricating Materials

Self-lubricating Bearing with solid lubricant -the right hydropower-bearing solution for your application, removing the need for toxic lubrication.

Oilless Bushing At The Ship Lock

Oilless Bushing At The Ship Lock

An oilless bushing with both grease grooves and self-lubricated plugs is being installed at the ship lock

We proudly operate our own foundry, dedicated to the development of our exclusive bronze alloy. Our self-lubricated plugs are crafted from a proprietary material that incorporates solid lubricants.

These oilless, self-lubricating bronze bushings find essential use in regulating the water flow at turbine inlet and outlet valves. In the context of turbine inlet valve projects, we have supplied flanged bushings that exceeded 68 inches in diameter and weighed nearly 2,000 pounds.

The choice of bronze and plug materials is meticulously tailored to each customer's unique application. Considerations such as load, speed, and motion in each application necessitate specific material recommendations. Our diverse material options enable us to provide customized solutions to meet our customers' precise requirements.

Ultimately, the key lies in gathering comprehensive information about each distinct application to deliver the most suitable and effective solution that aligns with the customer's needs.

High-Performance Hydropower Self-Lubricating Bearings

Types of Hydropower Bearing Used in Hydropower Plants

  • Thrust bearings are designed to handle axial loads generated by the weight of the rotating machinery and the water pressure on the turbine runner. They help maintain the proper position of the rotating parts and ensure that the force is evenly distributed.

  • Journal bearings support radial loads and are used primarily to support the weight of the rotating shafts. They allow for smooth rotation of the shaft while minimizing friction and wear, ensuring efficient energy transfer from the turbine to the generator.

  • Guide bearings, also known as radial or sleeve bearings, are responsible for guiding and maintaining the alignment of the rotating shafts. They prevent lateral movement and keep the shafts stable during operation.

  • Long life with little downtime.

Hydropower Bearing Used in Hydropower Plants
Hydropower Bearings

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Key Components And Materials Of Hydropower Bearings

Bearing pads are the primary contact point between the rotating shaft and the bearing. They help distribute the load and minimize friction. Depending on the type of bearing, they can be made from a variety of materials, including Babbitt metal, bronze, or high-performance polymers.

Bearing Materials

The choice of bearing material is crucial for the performance and durability of hydropower bearings. Some of the most common materials include Babbitt metal, bronze, and self-lubricating polymer-based materials. Each material has its advantages and disadvantages, depending on the specific application and environmental conditions.

Maximize Your Hydropower Output With Our Superior Bearings

Hydropower Bronze Bushing

Hydropower Bronze Bushing Applications

Water Turbine Application

  • Wicket gate/guide vane bushings
  • Wicket gate/linkage bushings
  • Operating rings/guide plates
  • Main shaft/guide bushings, seal bearings
  • Kaplan runner/blade bushings
  • Inlet butterfly valve/bushings

Water Gates Application

  • Radial gate/trunnion bushings
  • Roller gate/roller bushings
  • Ship lock gate/pintle bearings, cylinder bearings

Water Gates Application -Bearing Bronze With Graphite Inserts

Water gates are essential components of water management systems. They are used to control the flow of water, whether for irrigation, flood control, or hydroelectric power generation. To ensure the efficient operation of water gates, it is important to use high-quality materials for their construction.

Bearing bronze with graphite inserts is an excellent material for water gates application. wear resistance, underwater, portability, and ease of assembly and operation. These inserts provide continuous lubrication over the entire sliding surface. Additionally, these zero-pollution bearings eliminate the possibility of water contamination by removing the need for toxic lubrication.

Don't Let Traditional Bushings Hold You Back. Upgrade To Our Innovative Oilless Solutions


Cam Unit

Our standard cam units are used to punch, cut, and form sheets and plates. It Change vertical movement into horizontal or inclined movement by the use of inclined wedges and sliding blocks.