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Bimetal Thrust Washer , Low Carbon Steel With Aluminum-Tin alloy ( AlSn20Cu )
AlSn20Cu Bimetal Thrust Washer is backed with high quality low carbon steel with Aluminum-Tin alloy (AlSn20Cu) sintered on its surface.
AlSn20Cu Bimetal Thrust Washer is with medium fatigue-resistance, load capacity, good corrosion-resistance and super surface property.
AlSn20Cu Bimetal Thrust Washer is mainly used in main shaft, con rod shaft of internal combustion engine, pressure-squeeze machine and cooling machine.
To effectively decrease abrasion, AlSn20Cu Bimetal Thrust Washer' alloy surface can be machined with oil grooves for easier oil storage. When necessary, an erosion protection coating can be plated on the steel back.
Physical and Mechanical Performance
| Performance Index | Data | Performance Index | Data | |||
| Max. Load | 100N/mm² | Mating Axis | Hardness | ≥270 HRC | ||
| Linear Velocity | Oil Lubrication | 25 m/s | Roughness | Ra=0.16~0.63 | ||
| Max. Working Temperature | 150℃ | |||||
| Max. PV value | Oil Lubrication | 25N/mm²·m/s | ||||
| Friction Coefficient | 0.06-0.17 | |||||
| Anti-tensile Strength | 200 N/mm² | Heat-conducting Coefficient | 47 W/(m*k) | |||
| Alloy hardness | HB 30-40 | Heat-expansion Coefficient | 18*10^-6k | |||
Alloy Chemical Compositions
| Content | Al | Cu | Sn | Fe | Ni | Si | Mn | Ti | Others |
| Remainder | 0.7-1.3 | 17.5-22.5 | 0.5 | 0.1 | 0.7 | 0.7 | 0.2 | 0.5 |
