Metal-polymer self-lubricating bearings

Short Description:

The metal polymer self-lubricating bearing mainly bears radial load, and can also bear radial load and axial load at the same time. Its structure is simple, and compared with other types, it is easy to achieve higher manufacturing precision, so it is convenient for mass production, and the manufacturing cost is also low. Low, use the most common. Metal polymer self-lubricating bearing is the most representative rolling bearing, with small friction coefficient, high limit speed, simple structure, low manufacturing cost, easy to achieve high manufacturing precision, mainly bearing radial load, and can also bear a certain amount of axial load . Axial load capacity increases when larger radial clearance is selected.

Product Detail

Product Tags


1). PTFE/Fibre mixture thickness 0.01~0.03mm, provides an excellent initial transferred film, which effectively coats the mating surfaces of the bearing assembly to establish the self-lubricating feature.
2). Sintered bronze powder thickness 0.20-0.35mm, provides strong mechanical bond and excellent thermal conductivity.
3). Steel backing Provides mechanical strength.

 Tech. Data

Max. load Static 250N/mm² Friction coefficient 0.03~0.20
Very low speed 140N/mm² Max.speed Dry running 2m/s
Rotating oscillating 60N/mm² Hydrodynamic operation >2m/s
Max. PV Dry running Short-term operation 3.6N/mm²*m/s Thermal conductivity 42W(m*K)-1
Coefficient of thermal expansion 11*10-6*K-1
Continuous operation 1.8N/mm²*m/s
Operation Temperature range -195℃ ~ +280℃    


1. Strong manufacturing technology
1) With 70 years of manufacturing history, it mainly produces prime movers for gas turbines, thermal power generation, hydropower generation, nuclear power and other power generation, hydraulic control pipes for construction machinery, high temperature components for gas turbines and hydraulic control units.
2) It has a medium-volume production method with the same shape and a monthly output of more than 1,000 points, as well as a single production method with different specifications for each product, and gives full play to its technical advantages.

2. Exquisite welding technology and craftsmanship
We have a team of welders that comply with JIS standards, ASME standards, business partner standards, etc., and are committed to further improving our welding skills.

3. Design technology is accurate
1) Rich experience in designing hydraulic control pipeline module (following trolley) for shield excavator.
2) For the hydraulic control pipeline of construction machinery, 3D CAD is used for efficient design to avoid interference.
3) Rich experience in the design of thermal power, nuclear power circulating water pipelines, buried water supply pipelines, water bridges, water treatment plant pipelines and various facility pipelines.


We are wholeheartedly committed to working with each customer, constantly sharing ideas and gathering critical information on the suitability and performance requirements of your hydraulic cylinder for your specific application. If our standard range is not suitable for your application, we can advise you on custom hydraulic cylinders and we have extensive experience designing them. We do our best to develop dynamic, innovative and reliable hydraulic and machining solutions that exceed your expectations.

Application Field

As a leading hydraulic cylinder manufacturer, we are committed to providing hydraulic cylinders and solutions to meet the needs of a variety of different market segments.
Our products are used in a wide range of applications including mining and construction, agriculture and maintenance, load handling, forestry, lifting, recycling, defense, energy and more.


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