H-Liner® Polymer Bushings
HEF Polymer bushings are the result of intensive research and development in the field of self-lubricated and zero-maintenance bearings. These polymer bushings are of woven structure, and made of PTFE and epoxy resin providing tensile strength that is vastly superior to injection molded polymer bushings – and vastly more resistant to high loads, seizure and galling.
They are well-suited to rotation and oscillation applications, and high-speeds. High-load polymer bushings from HEF are chemically inert, and have low water absorption. Their maximum working temperature range is up to 320°F (160°C).
H-Liner M are manufactured with an homogeneous woven polymer material, on the complete wall thickness. This product is completely re-machinable and also available as flanged bushings, washers and slides. They are also widely used for when low water absorption or mis-alignement resistance is required.
H-Liner S is manufactured from a high strength composite fiberglass backing with an woven liner.
H-Liner S1 is made from high strength composite fiberglass backing with an improved wear resistance liner.
|
|
Dyn. Load N/mm2) |
Max Speed (m/s) |
Max Temp (°C) |
Low-Maintenance |
Wear resistance |
Low water absorption |
H-Liner M |
|
80 |
0.5 |
+130°C |
+++ |
++ |
+++ |
H-Liner S |
|
100 |
0.5 |
+160°C |
+++ |
++ |
+ |
H-Liner S1 |
|
140 |
0.5 |
+160°C |
+++ |
+++ |
+ |
For optimal performance we recommend using a grinded pin with a roughness lower than Ra 0.4 μm and hardness higher than 400 HB. HEF DURFERRIT PEL® OX pins are particularly appropriate against H-Liner Bushings.
Advantages: |
Applications: |
- Maintenance free
- Weight reduction
- Noise reduction
- Corrosion resistance
- Good chemical resistance
- Insulating material
- Misalignment accommodation
|
- Off-shore / oil & gas
- Harbor
- Hydropower Energy
- Conveyor rollers
- Handling equipment
- Railways
- Recycling industries
|