Jiaxing Joyreap Precision Machinery Co.,Ltd
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ZR-034 AlSn20Cu Tin Aluminum Bimetal Bushings JF-720 Steel Back Bimetallic Bushing Bearing
ZR-034 Steel back tin aluninum alloy bimetal bearing is made of low carbon steel with AlSn20Cu sintered bronze alloy.ZR-034 bimetal bearing has good oil corrosion resistance feature.Smooth surface and has outstanding embeddability and anti-seizure performance. This type of bimetal bush is suitable to be used to mate with soft shaft. The OD of the bearing is machined to a high precision grade and ID is machinable after assembling. This material is conformed to the ROHS regulation 2000/53/EC.
Material Structure
Sintered Tin Aluminum Alloy AlSn20Cu1, thickness 0.2-0.5mm, provides good self lubricating feature of the bearing
Steel Backing, provides the mechanical strength of the bearing.
Characteristics
Availability
Application
Technical Data
| Materail | Steel+AlSn20Cu |
| Alloy layer hardness HB | 30-40HB |
| Max dynamic Load P N/mm² | 100 |
| Max.Speed V m/s(Oil Lubrication) | 15 |
| Max.PV limit N/mm²·m/s(Oil Lubrication) | 8 |
| Friction Coefficient u(Oil Lubrication) | 0.05-0.2 |
| Max temperature ℃(Greased) | 150℃ |
| Max temperature ℃(Oil Lubrication) | 250℃ |
| Thermal conductivity W/mk | 47 |
| Coefficient of linear expansion | 18×10-6/K﹣¹ |
| Match the axis hardness HRC | ≥270 |
| Match the axis roughness Ra | 0.16~0.63 |