Tobies Beteiligungsgesellschaft mbH
TL-EHP Bushings
SELF-LUBRICATING PLASTIC BUSHINGS
TL-EHP bushings incorporate friction and wear reducing additives throughout the plastic layer structure ensuring consistent performance in limited-motion applications and resistance to shock and vibration loads.
Applications
Product characteristics
TL-EHP Bushing is materials designed for extreme high pressure applications. The bushing component elastomeric plastic bonded in a metallic shell.
Design operation load
| Static pressure max (MPa): | 95 |
| Dynamic pressure max (MPa) Speed (m/s): | 70 |
| Speed (m/s): | 0.5 |
Standard tolerances
| Housing: | H7/H8 |
| Shaft tolerances: | H7/H8 |
| Optimal shaft roughness: | Ra < 0.2 -0.6 |
Advantages of TL-EHP Bushing
- Maintenance free
- High load bearing capacity
- Lowest coefficient of friction
- High resistant shock loading
Assembly instructions
TL-EHP Bushings supplied with fully finished machining and size to suit the actual dimension approval by customer.
For further information, please contact Tobieslager Bearing before use
Mating shaft
TL- EHP Bushing were developed to run without lubrication. Therefore, counter shafts should be treated against corrosion.
For optimum performance, a final machined mating surface finish of 0.2 to 0.6 micro- Ra is recommended
Material data sheet
| Property | Unit | Value |
| Density - Plastic layer | 1.37 | |
| Hardness | Shore D | 82 ÷ 85 |
|
Max pressure: -Static -Dynamic |
MPa |
95 70 |
| Compressive strength | MPa | ≥ 605 |
| Dry friction coefficient | - | 0.05 – 0.14 |
| Abrasive wear ( drum rotary -ASTMD696) | mm3 | 190 |
| Thermal expansion coefficient | mm/mm.oC | 4 ×10 -5 |
| Temperature Range | oC | -40 ÷ 130 |
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