Bimetallic bearing， Bimetallic self-lubricating bearing
Connecting Rod Bushing Manufacturer
As a supplier and exporter specializing in bimetal bearings, we offer replacement connecting rod bushings and crankshaft bushings, catering to various industrial needs. Our competitive advantage lies in our production facility, which guarantees export-quality products at factory-direct prices. Our range includes Bimetal Bearings, Welded Sleeves, and bearings for Bulldozers, Excavators, and Conveyors.
about the company
Bimetal Bearing Bushing
We offer connecting rod bushings and bimetal bearings at factory direct prices. Our products include bimetal bearings, welded sleeves, bulldozers, excavators, and conveyor bearings. The connecting rod bushing, an essential engine component, serves as the linkage between the piston and crankshaft. Typically constructed from bimetal material, it features a steel backing coated with a sintered bronze alloy. This composition offers a high load-bearing capacity and resistance to wear, making it well-suited for heavy-load applications and challenging operational conditions. Recognized as a type of bimetal bearing, the bimetal connecting rod bushing is valued for its self-lubricating feature, low maintenance requirements, and long-lasting durability. These bushings find use in various connecting rod scenarios and are available from numerous suppliers at competitive market rates.
Product Quality Index
Energy Generation
A connecting rod bushing is an essential component in internal combustion engines, particularly in the reciprocating engine’s connecting rod assembly.
Bimetal Bearing Bushing
At Bronzelube.com, we offer a diverse range of car and truck parts and accessories, focusing on engines and engine parts with volume discount pricing. Our collection includes Connecting Rods & Parts, featuring various types of connecting rod bushing materials. Our bimetal bushings are designed to enhance wear resistance in full-floating connecting rods, effectively reducing engine friction and ensuring smooth operation. We provide an extensive selection of Car Engine Connecting Rods & Parts for sale, along with Spherical Plain Bearings & Rod Ends. Our products come in various finishes, including Brushed, Matte, Painted, Polished, Polished Chrome, Unfinished, and Zinc Plated, catering to a wide range of preferences and requirements.
Solutions for Connecting Rods Bearings and Steering Column Bush Specification
Connecting rods in engines endure both compressive and tensile stresses during their operation. To meet these challenges, connecting rod bushings are crafted from bimetal materials, offering a broad range of bimetal bushings suitable for various connecting rod applications. A connecting rod plays a crucial role in a piston engine, linking the piston to the crankshaft. We are thrilled to announce the launch of our new replacement connecting rod bearings parts, specifically designed for heavy equipment. made in china, these bimetal bearing bushings are engineered to deliver peak performance and enduring durability for heavy-duty machinery.
Connecting rods and crankshafts, as critical engine parts, often come at a high price. Our Connecting Rod Bushing and Bimetal Bearings, sourced from China, are reliably manufactured from start to finish, ensuring quality and efficiency.
Utilization of Bimetallic Connecting Rod Bushing These bimetallic connecting rod bushings are crafted using a combination of a copper-lead alloy and a steel back bi-metal strap, specifically designed for heavy-duty truck engines. Practical experiments have demonstrated that this material composition possesses excellent properties suitable for demanding applications.
Summary This paper presents the manufacturing process of connecting rod bushings for heavy truck engines, utilizing a steel-backed copper-lead alloy. Usage tests have confirmed the superior performance of this material in demanding conditions.
Connecting Rod Bushings the small end bushings of connecting rods are predominantly made as integral copper bushings. These are still viable for general small and medium power engines. However, with the continuous enhancement of engine power, the integral copper bushing is increasingly unable to meet the evolving demands. In practice, there have been instances where the connecting rod fails due to the slipping, chipping, or detachment of these integral copper bushings.
Advantages of Bimetal Bushings
Bimetal bushings present several benefits over traditional solid cast tin bronze bushings:
- Enhanced Fit and Stability: The steel back of the bimetallic bushing boasts a high elastic modulus, roughly double that of tin bronze. This ensures a snug fit with the connecting rod seat hole, significantly reducing the likelihood of slippage within the seat hole.
- Greater Shock Load Capacity: Bimetal bushings can endure higher shock loads. Additionally, their wall thickness can be thinner compared to solid bushings, offering a more compact design.
- Copper Savings: The bimetallic bushing incorporates a 0.3 to 0.5 mm layer of copper-lead alloy on the steel back, which significantly conserves copper usage.
To enhance engine reliability and meet user demands, we have tested bimetallic materials produced by copper-lead sintered junctions. These materials are fashioned into snap-type connecting rod bushings to replace the original solid tin bronze bushings. After conducting rapid overload bench tests and user usage tests, we achieved the desired results. This innovation is particularly beneficial for high-speed supercharged diesel engines, providing a robust foundation for bimetallic connecting rod bushings.
Key Properties of Bimetallic Materials
The metallographic structure of the alloy layer includes a finely distributed lead phase and a well-connected, granular copper phase. The hardness of the alloy layer ranges between HR15T65 and 85. The steel back is typically made from 08 or 10 steel. The bond strength between the alloy layer and the steel back meets the gouge test standard, with a fatigue strength of 122.6 to 137.3 MPa.
Fitting the Bushing to the Connecting Rod Seat Hole
The bushing and the small end seat hole of the connecting rod use an interference fit. To prevent slipping under operational conditions, the interference must be adequately large. However, excessive interference could lead to high assembly stress, impacting the strength of the connecting rod’s small end. When installing the bushing into the connecting rod’s small end hole, it’s crucial to align the center of the bushing with the center of the seat hole accurately, avoiding any skewness, and press it in using the specified pressure.
Materials Used in Bimetallic Bearings for Engines & Engine Parts
Bimetallic bearings incorporate a variety of materials to cater to different engine requirements:
Base Material: Primarily composed of low carbon steel, the outer surface of these bearings can be plated with copper or tin to enhance corrosion resistance.
Inner Wall Copper Layer: This layer is typically made from one of four types of materials:
- CuSn6Zn6Pb3 or CuSn6: Two kinds of tin bronze.
- CuPb10Sn10 or CuPb24Sn: Two types of lead bronze.
- Additionally, an ALSn20Cu high-tin aluminum alloy layer is used as a copper layer material.
The standard thickness for these alloy layers ranges from 0.25mm to 0.3mm, but custom thicknesses can be sintered as per customer specifications.
Performance of Inner Wall Materials:
- CuPb24Sn4: Known for high fatigue strength, load-bearing capacity, and impact resistance. However, its high lead content can lead to segregation, reducing wear resistance and bonding strength with the steel back. It’s costlier and more suitable for bearings under high-speed, oscillating, and rotational stress conditions.
- CuPb10Sn10: Offers high fatigue strength, bearing capacity, excellent lubrication, wear resistance, and corrosion resistance. Ideal for medium load, medium to high-speed bearings with significant impact loads. Used in rolls of mechanical equipment, high surface pressure sliding bearings, rolling bearings, vehicle bearings, bimetal bearing bushes, piston pin sleeves, and friction plates.
- CuSn6Zn6Pb3: Exhibits good wear resistance and corrosion resistance, ease of processing, and effective casting performance. Used in parts like turbines, motors, compressors, piston clutches, connecting rod bushings, and rocker arm bushings, especially under general load and moderate sliding speed conditions.
- CuSn6.5-0.1: A lead-free option widely used in balance axle bushings, gaskets, engine main bushes, connecting rod bushings, rocker arm bushings, oil pump side friction plates, and medium to small power internal combustion engines.
- ALSn20Cu: With moderate fatigue strength and bearing capacity, good corrosion resistance, and sliding properties, this material is suitable for flexible shafts and commonly used in medium and small power internal combustion engines, train engine bearing bushes, and air compressor bushings. It’s an excellent alternative to babbitt.
Understanding the Connecting Rod: Components, Functions, and Varieties
A connecting rod is a pivotal component in an engine, linking the piston to the crankshaft. It transmits the force exerted on the piston to the crankshaft, thereby converting the piston’s reciprocating motion into the rotational movement of the crankshaft.
Connecting Rod Composition
The connecting rod assembly comprises the rod body, the large end cap of the connecting rod, the small end bushing of the connecting rod, the large end bearing bush of the connecting rod, and the connecting rod bolts or screws. This assembly faces the combined forces of gas pressure from the piston pin, its own oscillation, and the piston group’s reciprocating inertial forces. These forces fluctuate in magnitude and direction, subjecting the connecting rod to alternating loads, including compression and tension. Adequate fatigue strength is crucial to prevent breakage, while sufficient structural rigidity is needed to avoid bending and out-of-round deformation, which can lead to uneven wear of the piston, cylinder, bearing, and crank pin.
Structure of the Connecting Rod
The connecting rod consists of three parts:
- The small end, which connects to the piston pin.
- The large end, which connects to the crankshaft.
- The rod body, bridging the small and large ends.
The small end typically features a thin-walled ring structure with a bronze bushing pressed into it to minimize wear. Grooves in the small head and bushing facilitate oil lubrication between the bushing and the piston pin.
The rod shaft, a long rod bearing significant force, is designed for rigidity to prevent bending. Engine connecting rods often have an I-shaped section for this purpose, while high-strength engines might use an H-shaped section. Some engines incorporate a through hole in the rod for oil spray cooling of the piston, necessitating a smooth arc transition to avoid stress concentration.
To minimize engine vibration, the weight difference among connecting rods in each cylinder is kept to a minimum. During engine assembly, rods are grouped by the mass of their large and small ends.
In V-type engines, where left and right row cylinders share a crank pin, connecting rods come in three designs: parallel, forked, and main-and-subordinate.
Connecting Rod Components
Connecting rods are installed on the crankpins of the crankshaft using plain bearings. The connecting rod bearing cap, secured by bolts, attaches to the large end. Most connecting rods are either hollow or have an internal cast oil tube for lubrication of the piston pin.
Bimetal bearings are made of low carbon steel with a sintered bronze alloy layer on the inner surface and rolled hemispherical oil holes to facilitate oil storage and reduce wear. The outer surface of the product can choose natural color, copper or tin plating according to the demand. The product is a kind of bearing capacity of double alloy bearings, used in many occasions is the balance bridge bushing of heavy vehicles, it is a kind of high load and low speed motion bearings with a wide range of uses.
Bi-metal Bushing Material Technical Data
Alloy layer material CuPb10Sn10 or CuSn6Zn6Pb3
Maximum bearing pressure 65N/mm2
Maximum operating temperature 260 degrees Celsius
The hardness of alloy layer is (70~100)HB
Application features:
Jf-800 bimetal bearing is a steel-copper alloy product made of CuPb10Sn10 or CuSn6Zn6Pb3 sintered on the surface of low carbon steel plate as matrix material. This product is one of the strongest bearing capacity of double alloy bearings. It is used in the balance bridge bushing of heavy duty vehicles. It is a kind of widely used high load and low speed motion bearing.
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Steel – copper composite bearing, bimetal bearing bushing casting non-standard custom，
Bimetal bearing. Bimetal bearing is a kind of oil-free lubricating bearing. It is based on high-quality low-carbon steel backing, and the surface is sintered with lead-tin-bronze alloy.
After several high-temperature sintering and dense rolling, it becomes a copper-steel bimetallic strip. Rolled.
Bimetal bearing is a kind of oil-free lubricating bearing. It is based on high-quality low-carbon steel backing, and the surface is sintered with lead-tin-bronze alloy.
After several high-temperature sintering and dense rolling, it becomes a copper-steel bimetallic strip. Rolled, suitable for bushings, thrust washers, etc. bearing medium speed and high impact load.
The balance axle bushings of heavy-duty vehicles all use bimetal bearings, which are a wide range of high-load low-speed motion bearings.
In high sliding performance, it has particularly good self-lubricating performance in the absence of lubricating medium and water as the medium.
It is suitable for bimetal casting materials, corrosion-resistant bearings with high sliding speed, and bearings for crushers, water pumps, and cold rolling mills. Piston pin sleeves with loads up to 70MPa.
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Connecting Rod Bushings and Related Bimetal Bearings Parts
Connecting Rod Bushings – An Essential Component in Engines
The connecting rod (con-rod) plays a pivotal role in an engine, linking the piston to the crankshaft to transmit combustion pressure to the crankpin. This rod features bushings at both ends: the smaller end connects to the piston, while the larger end attaches to the crankshaft.
Bimetallic Bearings: Customized Solutions for Automotive Engine Parts
Our bimetallic bearings, including automotive replacement engine connecting rods and parts, are customizable and manufactured to order in China, ensuring precision and compatibility with specific automotive requirements.
Specialty Bearing – Custom Bimetallic bearing
Special Bushing & Plain Bearings, Save Up To 10% When You Buy More
Bimetallic self-lubricating bearing, Engines & Engine Parts
Bimetal bearings are made of low carbon steel with a sintered bronze alloy layer on the inner surface and rolled hemispherical oil holes to facilitate oil storage and reduce wear. The outer surface of the product can choose natural color, copper or tin plating according to the demand. The product is a kind of bearing capacity of double alloy bearings, used in many occasions is the balance bridge bushing of heavy vehicles, it is a kind of high load and low speed motion bearings with a wide range of uses.
Connecting Rod Bearing Manufacturers and Suppliers
Connecting Rod Bearing at Good Price in China!
We have a wide range of other connecting rod bushings parts available. For any inquiries or questions, please feel free to reach out to our sales team.
Discover our Bimetal Bushing Design tailored for Engines & Engine Parts, including expert solutions for Connecting Rod Bearing Replacement. We pride ourselves on delivering high-quality Bimetal Bearings and professional services for replacing connecting rod bearings globally.
For Engine Parts, we provide connecting rods that meet specific strength and machinability requirements, leveraging our advanced forging technology and material selection expertise.
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