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| Brand Name: | VIIPLUS |
| Model Number: | Self-lubricating bearing |
| MOQ: | Negotiable |
| Price: | Negotiable |
| Supply Ability: | casting bimetal bushing, China, manufacturers, suppliers, factory, wholesale, Metric Self Lubricating Bushing, Self Lubricating Bushings, Journal Bronze Bearings, Bimetal With Graphite Bearing, Metallic Bearings, Flanged Bimetallic Plain Bearing |
Steel CuPb10Sn10 bimetal bearing bushes are widely used in the connecting rods of automotive engines due to their exceptional wear resistance and load-bearing capabilities. These bushes are composed of a steel backing with a CuPb10Sn10 alloy overlay, which provides superior tribological properties for engine applications.
The steel backing offers strength and rigidity, while the CuPb10Sn10 overlay exhibits excellent sliding properties, high fatigue strength, and good thermal conductivity. The copper-based alloy is composed of copper, lead (Pb), and tin (Sn) in a 10% each ratio, which provides a balance between strength, ductility, and wear resistance.
The bimetal construction of these bearing bushes allows for the optimal combination of material properties. The steel backing ensures durability and rigidity, while the CuPb10Sn10 overlay provides the necessary tribological characteristics for efficient engine operation. This combination of materials results in a bearing bush that can withstand the high temperatures, pressures, and dynamic loads generated by the reciprocating motion of the connecting rod.
In addition to their material properties, the precision manufacturing process ensures that the bearing bushes fit precisely into the connecting rod and crankshaft journals. This precise fit reduces friction and wear, improving engine efficiency and durability.
Overall, Steel CuPb10Sn10 bimetal bearing bushes are a reliable choice for automotive engine connecting rods. Their superior wear resistance, load-bearing capabilities, and precise fit make them essential components for ensuring the smooth and efficient operation of automotive engines.
For bitzer semi-hermetic compressor crankshaft bushingBIMETAL BEARINGS CUPB30 CATALOG.pdf
Bimetallic bearings to the high-quality low-carbon steel substrate, the surface of the sintered copper alloy having a low friction characteristic (CuPb10Sn10, CuPb6Sn6Zn3, CuPb24Sn4, CuPb30, AlSn20Cu, CuSn8Ni) as a wear layer bearing copper alloy surfaces can be processed in accordance with the use of a variety of conditions need type tank, oil hole, oil hole, so as to fit in unsustainable fuel refueling or difficult situations. Secondary extrusion material through the secondary sintering can be a good bonding strength and optimum carrying capacity.
Material | Steel + CuPb10Sn10 |
Typical Application | con-rod of automobile engines, engineering, and agriculture machinery, heavy-duty construction machinery, etc. |
Max Dynamic Load | 140N/mm² |
Max Line Speed (Grease) | 2.5m/s |
Max PV Value Limit (Grease) | 2.8N/mm².m/s |
Friction Coefficient (Grease) | 0.05~0.15 |
Max Line Speed (Oil) | 5m/s |
Max PV Value (Oil) | 10N/mm².m/s |
Friction Coefficient (Oil) | 0.04~0.12 |
Max Working Temperature | Grease 150ºC, Oil 250ºC |
Mating Axis | Hardness ≥53HB, Roughness Ra=0.32~0.63 |
Alloy Layer Hardness | 60-90HB |
Thermal Conductivity | 47W/MK |
Coefficient Of Linear Expansion | 18×10-6/K |
We can also develop according to customers special request while out of this table | |
| Nominal Thickness | Tolerances+ of Series B (non-machinable) | Tolerances of Series C (non-machinable) |
| 1.0 | -0.025 | +0.25 +0.15 |
| 1.5 | -0.030 | +0.25 +0.15 |
| 2.0 | -0.035 | +0.25 +0.15 |
| 2.5 | -0.040 | +0.30 +0.15 |
| 3.0 | -0.045 | +0.30 +0.15 |
| 3.5 | -0.050 | +0.30 +0.15 |
The standard sizes are fitted with lubrication indents on the running surface. For standard bearings is normally the steel backing copper plated to improve the corrosion resistance. The layer of lead bronze makes it possible to use these bearings with relatively long lubrication intervals.
Bimetal-bearings can be manufactured with a thicker lead bronze layer for applications where the bearing has to be machined after mounting. The material of the layer can be fitted to the special needs of the application in question.
Steel Backing and Leaded Bronze Overlay
Steel + CuPb10Sn10 with indents
| Material: | Copper plated steel backing, lead bronze layer (CuPb10Sn10) |
| Yield point: | (Rp0,2) ca 240 N/mm2 |
| Tensile strength: | (Rm) ca 350 N/mm2 |
| Hardness: | ca 90 – 110 HB |
| Friction: | Depends on the material and the performance of the layer. |
| Max speed: | 3,0 m/s |
| Temperature range: | -100 / +260 °C |
| Load | Speed |
| Ca: 240 N/mm2 | 0 m/s |
| 120 N/mm2 | 0,01 m/s |
| 40 N/mm2 | 2,0 m/s |
Rather a high load capacity.
Possibility to machine the inside diameter after mounting.
High-level thermal conductivity.
Good chemical resistance.
Wide range of temperature.
| Dry | Poor |
| Oil-lubricated | Good |
| Grease lubricated | Very Good |
| Water lubricated | Poor |
| Process fluid lubricated | Poor |
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