DAITHERMO DTK57
This is an environmentally friendly, lead-free bearing material. Copper-tin alloy is sintered onto a steel backing, and the bearing surface is a mixture of polyetheretherketone resin (PEEK) and a special filler. It exhibits excellent wear resistance and durability under boundary and fluid lubrication conditions, and has good sliding characteristics due to PEEK, the special filler, strength of the metal material and dimensional stability.
Product Details
Features
- High load capability equivalent to that of metal material.
- Low friction and high wear resistance with boundary and fluid lubrication.
- Excellent chemical resistance.
- Broad temperature range.
- Machinability of inside diameter.
Major Applications
Fuel injection pumps
Characteristics
| Specific Load MPa | Sliding Speed m/min | Service temp. Range °C (Min. to Max.) | Friction Coefficient μ | Tolerance of Foreign Particles | ||
|---|---|---|---|---|---|---|
| Normal | Max | Normal | Max | |||
| Below 49.0 | 100 | Below 180 (Boundary lubrication) | 240 (Boundary lubrication) | -150 ～ 250 | 0.1～0.3 | Low |
- On the actual application, the best performance in all categories would not be expected to be exerted simultaneously.
- Thermalloy, Daislide and Dailubo have general-to-special grades to meet various customer needs.
Target Properties
| Structure | Sliding Layer Component | Wear Resistance | Load Resistance | ||||
|---|---|---|---|---|---|---|---|
| No Lubrication | Grease | Boundary and Fluid | No Lubrication | Grease | Boundary and Fluid | ||
| With steel backing | PEEK+α | 2 | 5 | 5 | 2 | 5 | 5 |
| Tolerance of Foreign Particles | Sliding Speed | Friction Coefficient | Effect of Various Atmospheres | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No Lubrication | Grease | Boundary and Fluid | No Lubrication | Grease | Boundary and Fluid | In Air | In Vacuum | In Water | In Vapor | In Acid or Alkali | |
| 3 | 2 | 5 | 5 | 2 | 5 | 5 | 5 | 5 | 3 | 3 | 3 |
- 5=Excellent 4=Very good 3=Good 2=Inadequate 1=Failure
- ※ In an acid/alkaline atmosphere, the evaluation may bring different results. We recommend a sample test in such case. Please feel free to contact us with questions about the application under special conditions.
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