Bimetall wrapped bearings, such as those made from CuPb10Sn10 (a copper-lead-tin alloy), are commonly used in applications requiring high load capacity, good wear resistance, and reliable performance under lubrication. Here's a breakdown of the key aspects of this material and its application in bearings:

Material: CuPb10Sn10
Composition:

Copper (Cu): Base material, providing good thermal conductivity and strength.

Lead (Pb): ~10%, improves anti-friction properties and embeddability (ability to absorb dirt or debris).

Tin (Sn): ~10%, enhances hardness, wear resistance, and corrosion resistance.

Properties:

High load-bearing capacity.

Good fatigue resistance.

Excellent compatibility with steel shafts.

Suitable for both lubricated and marginally lubricated conditions.

Moderate corrosion resistance (improved by the tin content).

SAE-797 Specification
SAE-797 is a standard specification for bimetallic bearings, typically consisting of a steel backing with a layer of bearing material (e.g., CuPb10Sn10) bonded to it.

The steel backing provides structural strength, while the CuPb10Sn10 layer offers the necessary bearing properties.

These bearings are often used in automotive, industrial, and heavy machinery applications.

Lubricated Metal Bushes
Lubrication:

CuPb10Sn10 bearings are designed to operate with lubrication (oil or grease) to reduce friction and wear.

The lead content in the alloy helps maintain a lubricating film even under marginal lubrication conditions.

Applications:

Engine bearings (crankshaft, connecting rods).

Gearbox bearings.

Industrial machinery bearings.

Pumps and compressors.

Advantages of CuPb10Sn10 Bearings
High Load Capacity: Suitable for heavy-duty applications.

Wear Resistance: Tin content improves durability.

Conformability: Lead allows the bearing to adapt to minor misalignments.

Embeddability: Can tolerate small particles in the lubricant without significant damage.

Thermal Conductivity: Copper helps dissipate heat, reducing the risk of overheating.

Typical Applications
Automotive: Engine bearings, transmission components.

Industrial: Hydraulic systems, compressors, and heavy machinery.

Marine: Propeller shafts and rudder bearings.

Considerations
Ensure proper lubrication to maximize bearing life.

Avoid excessive temperatures, as lead can soften at high temperatures.

Use compatible shaft materials (e.g., hardened steel) to prevent excessive wear.

If you have specific application requirements or need further details, feel free to ask!

Bimetal Wrapped Bearings Material CuPb10Sn10 SAE-797 are lubricated metal bushings that offer superior wear resistance and load-bearing capabilities. The CuPb10Sn10 alloy, also known as tin-lead bronze, combines the strength and ductility of copper with the wear resistance and lubricity of tin and lead. SAE-797 is a standard specification for this type of material, ensuring consistent quality and performance.

These bushings are wrapped with an outer layer of metal, typically steel, that provides additional strength and durability. The CuPb10Sn10 alloy is then pressed or sintered into the inner diameter of the bushing, creating a bimetallic structure that combines the benefits of both materials.

The lubricated nature of these bushings allows them to operate with minimal friction and wear, even under high loads and speeds. This makes them ideal for applications where reliability and long service life are critical, such as in automotive transmissions, engines, and other heavy-duty machinery.

The CuPb10Sn10 SAE-797 material is also resistant to corrosion and oxidation, further extending the service life of the bushings. Additionally, the material is easy to machine and form, allowing for precise fitment and installation in a variety of applications.

In summary, Bimetal Wrapped Bearings Material CuPb10Sn10 SAE-797 Lubricated Metal Bushings offer a superior solution for applications requiring high wear resistance, load-bearing capability, and reliability.

Bimetal Bearing Bushes cupb10sn10, bushes - metric size  Steel Backing and Leaded Bronze Overlay Steel + CuPb10Sn10 with indents

Bimetal bearing bushes lead free bimetal bearing,with low carbon steel as base material,sintered with CuSn6.5P0.1 alloy layer.It is of good performance in anti-fatigue,anti-load,and sliding performance.For many working conditions,it can be substitution of bimetal bushings with lead or bronze bushings.

Bimetal Wrapped Bearings made to order from china. Steel shell backed with a lead bronze lining bearing material for oil lubricated applications. Chemical Composition Material Alloy composition International standard Alloy hardness JF‐800 CuPb10Sn10 SAE‐797,JF‐720,CuPb24Sn4 ,SAE‐799 ,JF‐700 CuPb30 ,JF‐J20 AlSn20Cu .This material has high load capacity and good fatigue properties.

Bearing forms made to order: cylindrical bushes and thrust washers with non-standard dimensions, sliding plates, customized bearing designs

bimetal bearings.pdf

It is widely used in automotive applications such as compressors, steering gear, power steering, pedal bearings, king‐pin bushes, tailgate pivots, mechanical handling and lifting equipment, hydraulic motors, agricultural machinery etc.

Custom Designed and Manufactured Bearings and Bushings Anti - Wear Bimetal Bearing Bushes , Bronze Steel Flanged Bushing For excavator Arm Bushing & Bearing of excavator,chassis walking mechanism bearings

VIIPLUS Bearings The working range and performance of Small and Middle Size Engineering Machines: Bulldozer, Excavator, Loader. And Impact hammer.
 

VIIPLUS Bimeytal bushings Specialized in wholesale bushingsspare parts, such as excavator, loader, asphalt concrete paver, road roller, grader, and mixing plant.

Self-lubricating bearing is widely suitable for hydraulic excavator, skid loader, wheel loader, road machinery, bridge machine, mining machinery and so on.

Crushing hammer Maintenance-free bearing solution,Such as Self-lubricating bearings for loader and scraper attachments

Manufacturers of construction equipment and other off-road equipment may use stainless steel fabric bearings, which are lubricated, maintenance-free and have a long service life;And, provides superior performance, reduces the cost, moreover does not need the maintenance the automatic lubrication system.

Construction machinery Bushing & Bearings

Reliable, light, free of lubrication solutions are widely used in construction equipment, sliding bearing used in the most demanding conditions, still has high reliability, such as heavy earth moving equipment, mining equipment, sorting machine, excavator, concrete pump, driver, lifting equipment such as forklifts, pallet trucks, scissors lift and maintenance platform and all kinds of cranes, container transport system.
 

Without lubrication, self-lubricating bearings provide customers with more environmentally friendly operation advantages.Our self-lubricated bearings are clean, light weight, environmental protection, and more reliable than conventional lubricated copper bearings.

High performance maintenance-free bearings have the following advantages:

1. lower cost of ownership, maintenance-free operation and extended service life

2. Lightweight, compact, rugged bearing design with excellent shock resistance, shaft misalignment and wear for higher productivity, bearing replacement maintenance and replacement without downtime.

3. Composite bearing structure provides excellent chemical corrosion resistance

4. Environmentally friendly drying operation can eliminate soil pollution in oil pollution

5. Reduce equipment costs without the need for lubrication systems, conduits, hoses, joints/parts and

6. expensive oil-retaining seals

VIIPLUS bearings are used in the mining industry, links and excavator loaded in front of the machine.Our company has independently developed excavator bearings.

Thin wall bearings are supporting the hydraulic motor on the steering gear used, excavators, gas turbines, winches and other mechanical devices.Bimetal bushing is backing on low carbon steel, sintered with CuPb10Sn10 or CuSn6Zn6Pb3 bronze powder, which has the highest load capacity among the bi-metal bushings. the application including balance suspensions of heavy-duty trucks, track roller of bulldozers, auto chassis etc.The Bi-Metal Bushing is composed of bronze material as inner layer and tough steel material as outer layer. The strong and tough steel material as outer layer reinforces the Bi-Metal Bushing, enable to extend Bi-Metal Bushing's life cycle, and improve job quality. It is not only can replace high price of all bronze Bushing but also reduce the production cost.

Bimetal bushing is backing on low carbon steel, sintered with CuPb10Sn10 or CuSn6Zn6Pb3 bronze powder, which has the highest load capacity among the bi-metal bushings. the application including balance suspensions of heavy-duty trucks, track roller of bulldozers, auto chassis etc.
It is a kindly of high load and low speed bushing, with wide application.

Structure Characteristics and Applications

Bi-metal bushing can be used in undercarrigae parts and engines of auto industry, construction machined etc.
 

Specification:
 

Load capacity: 120n/mm2
Temperature limit: -100~+200
Speed limit: 6m/s
Chemical compo-sitions: Cu80pb10sn10
Hardness: Hb60~90

Character

1. Middle load capacity and middle anti-fatigue
2. Applied in middle speed. High impact conditions
3. Good anti-corrosion, and sliding capability
 

VIIPLUS VSB-80 bimetal bushing is backed with high quality low carbon steel with tin-lead-bronze alloy(CuSn10Pb10)sintered on its surface. To effectively decrease abrasion, its alloy surface can be machined with ball shaped oil sockets for easier oil storage. When necessary, it could be plated copper or tin on the steel back. It can be applied to conditions of mediate load with mediate or high running belocity and conditions with enormous impact load. In mechanical applications, VSB-80 is used to make wrapped bushes, thrust washer and bushes on connecting rod level of gas engine.
Materiai:Steel＋CuPb10Sn10

Typical application

Excavator chassis crawler wheel bushing
Application: con-rod of automobile engines, engineering and agriculture machinery, heavy duty construction machinery etc.

This material is recommended to be used under the medium speed and medium load condition with oil or grease lubricating. It is widely used for motor rod ends, Kingpin bushing, undercarriage rollers, hydraulic cylinder rod eyes of construction machines and spherical joint bearings of agricultural machines. Because this material is with lead, the specific parts are not allowed to be used according to certain laws or regulations.

Bimetal Bearings​ Gleitlager Bearings standard size table 

• Bimetal bearing with steel backing and bronze overlay

• Particularly suitable for high specific loads with oscillating motion and low frequency

• Applicable in rough operation conditions

• High load capacity, very good resistance to fatigue strength at higher temperatures

1.Sintered bronze Layer: Good wears resistance and excellent load-carrying capacity.
 
2.Steel backing: Setting the foundation of the bushings, the steel back provides exceptional stability, load carrying, and heat dissipation characteristics.

Steel Backing and Leaded Bronze Overlay
Steel + CuPb10Sn10 with indents

• Cylindrical bushes

• Thrust washers

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