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- Corrosion resistance BEARPHITE
Corrosion resistance BEARPHITE
Corrosion resistant sintered bearings are usable bearings in environment where corrosion easily occurred such as in fuel or exhaust gas was developed.
Characteristics
- Low cost is realized by adopting aluminum bronze material, which is developed as the world’s first sintered bearings
- Excellent corrosion resistance compared to cupronickel material.
- Friction and anti-wear properties improved by optimizing the material composition.
Examples of use
- Fuel pumps
- Exhaust gas recirculation system
Salt spray test
Test temperature : 35 ℃ / Salt concentration : 5% / Test time : 120h
Developed material | Cupronickel based material |
---|---|
![]() Before the test → After the test |
![]() Before the test → After the test |
No corrosion | corroded |
→ Achieve the corrosion resistance equal or better than the over cupronickel.
Anti-wear test
PV value : 25MPa・m/min Test time : 1h
Developed material | Cupronickel based material | |
---|---|---|
Specific wear rate3 / (N・m) | 3.2 × 10-7 | 30 × 10-7 |
Wear resistance is cupronickel 9-times more than cupronickel
Compared with cupronickel based material
- Equal or better corrosion resistance
No corrosion generated in JIS salt spray test - Same 0.1 or less coefficient of friction
- 9-times or more wear resistance