Bronze Self-Lubricated Hydraulic Cylinder Bushing Metric Size is a high-performance bearing component designed for use in hydraulic cylinder systems. Made from bronze material, it offers excellent wear resistance and self-lubricating properties, ensuring smooth and reliable operation.

The bushing is sized according to metric standards, ensuring compatibility with a wide range of hydraulic cylinder systems. The self-lubricating feature eliminates the need for regular lubrication, reducing maintenance requirements and operational costs.

Whether used in heavy-duty machinery or industrial equipment, Bronze Self-Lubricated Hydraulic Cylinder Bushing Metric Size provides a durable and reliable bearing solution that can withstand high loads and pressures. Its robust design and excellent performance make it an ideal choice for hydraulic cylinder applications that require long-lasting and efficient bearing support.

Hydraulic Cylinder Bushing manufacturers & suppliers, Washers, spacers, and bushes - Tech Standard & Special Parts

Bronze Backed Bushes

28mm x 32mm x 25mm long bronze-backed DU bushs

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Types of bushing

Bushings and Plain Bearings

Bushings, also known as "plain bearings" or "sleeve bearings", are designed for many applications and offer many features and benefits not found in rolling element bearings. Bushings (plain bearings) differ from rolling element bearings primarily in that they consist of only one part. This one part can be composed of different materials, layered and combined into a load-bearing system. Depending on the application, the bushings can be operated with supplementary lubrication or "dry" and do not require supplementary lubrication. The bushings can be impregnated with lubricant, inserted with lubricant "graphite", or have an inherently low coefficient of friction. Bushing materials include cast or machined metals, stabilized polymers ("PTFE/POM"), composite materials, and combinations of different types of materials. Selecting the right bushing for each project requires detailed knowledge of the application requirements and experience in bushing technology. Our bearing experts can provide advice and guidance to make the selection process as easy as possible.

The Self-Lubricating Bearing 
Self-lubricating bushings are used when the bearing must operate without lubricant or with insufficient lubricant. Our focus is to ensure optimum performance and maximum life of the bearing under all conditions. Self-lubricating bearings work on the principle that during the initial break-in period of a bearing, there is a solid lubricating film that is formed by the transfer of a small amount of material from the bearing layer. This film is in direct contact with the moving parts, protecting and lubricating the mating parts and extending the life of the bearing.

China Excavator Du Bushing Hydraulic Cylinder Bush Steel Bearing for Excavator

Hydraulic Cylinder Bushing introduction

Cylinder cups bearing bush is a new material specially designed to combine with the working principle of oil cylinder and shock absorber, which appears to be wear-resistant under the condition of no oil. This product has the advantages of oil-free self-lubrication, and is especially suitable for the occasion of reciprocating frequently with large lateral force. Its performance is similar to that of foreign DP4. At present, this product gradually replaces SF-1P products and is suitable for automobile and motorcycle shock absorbers as well as various hydraulic cylinders and other fields.
The product is widely used in construction machinery industry, automobile industry, metallurgical equipment, mining machinery, pharmaceutical machinery, petroleum machinery, etc., which need to be resistant to corrosion and water infiltration, and heavy load and low speed can not be used in refueling conditions.

Translated with www.DeepL.com/Translator (free version)

What is the purpose of hydraulic bushings?
Hydraulic bushings have very specific functions because they are specifically designed to be used in hydraulic systems. Some of the components of a hydraulic system that use hydraulic bushings are as follows.

Hydraulic pumps
Hydraulic cylinders
Control arms
Hydraulic cylinder pins and bushings
While the types of systems that hydraulic bushings can be used in are very limited, the systems themselves are very versatile. Hydraulic systems are a very important development in modern technology, and the strength and stability of hydraulic systems are invaluable in many applications. Some of the places where hydraulic systems are commonly used are as follows.

Bulldozers
Tractors
Industrial garage doors
Cranes
Hydraulic machines
Pumps and hydraulic bushings
Pumps and hydraulic bushings

What materials are hydraulic bushings made of?
Hydraulic bushings can be made from any of the other bushing materials, but depending on the application of the bushing, a stronger material may be required. Since hydraulic bushings may be responsible for the function of carrying tons of weight in a system, an extra strong metal like bronze may be needed instead of a polymer like PTFE or other metals like steel and brass.

What is a hydraulic bushing press?
A hydraulic bushing press is a tool used to install and remove tight-fitting bushings in a variety of applications. These tools are commonly used in the automotive industry to remove close fitting bushings from automotive chassis, axles and wheel well areas. This is a good example of the strength and usefulness of a hydraulic system, as in this case the hydraulic bushing is used in a hydraulic system that is used to install and remove other types of bushings in a completely different application

The best hydraulic bushing manufacturer in China
bronzelube is recognized as the leading supplier of the best and most trusted hydraulic bushings and all other types of bushings in China. As the best hydraulic bushing manufacturer in China, we have been doing business with companies all over the world for over 20 years. We work especially closely with customers in Europe and America. If we don't have what you are looking for in our inventory, by all means please contact us! We can customize any order as needed.

We can customize any order to your own design. Our industry-leading team of engineers can use their knowledge and skills to deliver the perfect product for you, no matter how difficult the project may be. For more information on pricing and lead times, don't hesitate to contact our professional sales team!

Hydraulic bushings - What to know
What is a hydraulic bushing?
A hydraulic bushing is a bushing that is specifically designed for hydraulic applications. Hydraulic applications require certain characteristics and features of a bushing, which is why a hydraulic bushing is different from a standard bushing. One of the most important parts of a hydraulic bushing is a groove that is designed to securely connect the bushing to the hydraulic valve. Hydraulic systems carry heavy loads in ways that other machines don't, which makes them require these unique, grooved bushings to provide excellent support.

Why should I replace my hydraulic bushings?
When a hydraulic bushing starts to wear out, you replace it. Because hydraulic systems are designed to support extreme weights, it is critical to ensure that all components of the hydraulic system are in perfect condition. If any part of the hydraulic system is not in optimal condition, you run the risk of machine failure, which can damage not only the machine, but every part of the heavy load it supports. Because of the unique nature of hydraulic systems and their functions, it is vital to ensure peak maintenance before any kind of accident occurs.

How do you know when you need to replace your hydraulic bushings?
There are a number of ways to know when you need to replace your hydraulic bushings. First, if the grooves in the hydraulic bushings start to wear out, you run the risk of slippage within the machine. Slip can reduce the efficiency of your machine, but it can also have more damaging consequences, such as detachment or breakage. If the hydraulic bushing itself begins to lose its shape or develop cracks, it is necessary to replace it immediately. Again, because of the unique features of a hydraulic system, it is of utmost importance that you ensure that all hydraulic components, including the hydraulic bushing, are in perfect working condition. Choosing a high-quality material, such as bronze, will ensure that your machine remains in operating condition for a longer period of time and can minimize the risk of accidents.

Patent name: Excavator motor arm bucket bar hydraulic pressure bushing tooling
Technical field.
The new type relates to a kind of excavation motor arm and bucket bar hydraulic pressure bushing tooling. This device is easy to operate, flexible, wide range of work, easy to transport. When the bushing is installed, the tooling is lifted up and the bushing is placed on the positioning sleeve and pressing sleeve on both sides of the tooling, then the tooling is moved to align with the installation hole of the moving arm or bucket rod, and the hydraulic cylinder is controlled by remote control to press the bushing in to complete the efficient installation. The positioning sleeve and hydraulic cylinder of the excavator arm and bucket rod hydraulic press bushing tooling are easily disassembled and replaced using threaded connections.

At present, domestic and foreign production of hydraulic excavators on the moving arm, bucket rod bushings and holes are used with excessive fit, the location of the hole where the bushing is installed is used to install the hydraulic parts, requiring high precision. The bushing needs to be cooled with liquid nitrogen and then pressed with a cushion or pad iron to install the bushing, which is difficult to assemble, inefficient and labor-intensive for workers and easy to have problems affecting health such as lumbar disc protrusion.

The new invention provides a new method of installing the excavation motor arm and bucket rod pressure bushing, such method is new compared to the original method is to install the excavation motor arm, bucket rod bushing can be installed at the same time the bushing at both ends of the cylinder, the elimination of liquid nitrogen cooling bushing and the elimination of manual knocking way of a mechanism to achieve the purpose of reducing production costs and labor intensity of workers. The solution is based on the characteristics of the coaxial installation holes of the excavator arm and bucket rod, lifting the tooling first and then placing the bushing on the positioning sleeve and pressing sleeve of the tooling, moving the tooling so that the positioning sleeve is aligned with the leveling installation holes, then controlling the hydraulic cylinder on the tooling through the control remote control on the hydraulic system, pressing the bushing on the positioning sleeve on both sides of the installation holes through hydraulic pressure, and then controlling the hydraulic cylinder to make the positioning sleeve of the tooling exit from the installation holes to complete the whole installation. The hydraulic cylinder is then controlled to make the positioning sleeve of the tooling exit from the mounting hole to complete the whole process of mounting the sleeve. The whole set of excavator arm and bucket bar hydraulic pressure bushing tooling is light and efficient, and it is convenient, reliable and quick to install and disassemble. The technical solution of the new invention uses a U-shaped steel plate, the closed end is connected to two eyebolts, the open end is connected to the positioning cylinder on one side and the positioning flange on the other side, the positioning cylinder's positioning installation hole and the positioning flange's positioning installation hole are machined to ensure coaxiality, the positioning cylinder and the positioning sleeve are connected by threads, the back end of the positioning sleeve is a step with internal thread diameter and the positioning cylinder installation hole gap fit The center end of the positioning sleeve is a step with a diameter larger than the bore of the bushing, and the front end is a step shaft with a diameter matching the bore of the bushing in length and form to meet the positioning requirements of the bushing and the mounting hole. The hydraulic cylinder is connected to the clamping sleeve through the connecting sleeve. The rear end of the clamping sleeve is a step with a diameter larger than the bore of the bushing, and the front end is a step shaft with a diameter matching the length and form of the bushing's bore clearance to meet the requirements of the positioning of the bushing and the mounting hole. The whole assembled excavator arm and bucket rod hydraulic pressure bushing tooling is easy to operate, and the positioning sleeve and pressing sleeve and hydraulic cylinder are convenient and simple to disassemble and install, which can make it applicable to the installation of bushings for moving arms and bucket rods of various types and sizes of excavators. The advantage of the new invention is that the hydraulic cylinder with hydraulic pressure will press the bushing installation hole safely and smoothly can reduce the labor intensity of workers, this tooling can install the bushing at both ends of the cylinder at the same time, to achieve the elimination of the process of soaking the bushing with liquid nitrogen to save costs. Each part of the tooling is easy to process and simple to assemble. In summary, the utility model can install the bushings quickly and easily, reduce production costs and workers' labor intensity, and has a simple structure, easy manufacturing, low cost, reliable performance and high efficiency.

(12), hydraulic cylinder
Specific implementation of the best implementation process of the new type of the invention. Referring to the attached Figure I, Figure 11, the user lifts the tooling by the eyebolt (6), then puts the bushings on the positioning sleeve (4) and the pressing sleeve (8) respectively, moves the tooling so that the tooling with the bushings on the positioning sleeve (4) and the pressing sleeve (8) is aligned with the installation hole, controls the hydraulic cylinder (13) movement to drive the pressing sleeve (8) to press the bushings on both sides into the installation hole at the same time, and finally controls the hydraulic cylinder (13) Finally, control the hydraulic cylinder (13) to move the pressing sleeve (8) and the positioning sleeve (4) out of the installation hole and then remove the tooling to complete the process of rectification work.

1. A kind of excavation motor arm bucket rod hydraulic pressure bushing tooling, including hexagonal bolt, spacer I, positioning cylinder, positioning sleeve, U-shaped plate, eyebolt, spacer II, pressing sleeve, connecting sleeve, positioning flange, flange, hexagonal bolt, hydraulic cylinder. It is characterized by using a U-shaped steel plate with two eyebolts attached to the closed end, a positioning cylinder attached to one side of the open end, and a positioning flange attached to the other side. The positioning cylinder is connected with the positioning sleeve in the shape of step axis by thread, and the positioning flange is connected with the hydraulic cylinder by a flange, and the hydraulic cylinder is connected with the pressing sleeve formed by the step shaped connecting sleeve, which can ensure the coaxiality of both sides and facilitate the disassembly and replacement of parts.
2. The excavator arm bucket rod hydraulic pressure bushing tooling as shown in claim I. It is characterized in that the hydraulic cylinder presses the bushing with hydraulic pressure to install the hole safely and smoothly, can install two bushings on both sides at the same time, can reduce the labor intensity of workers, and can achieve the elimination of the process of soaking the bushing with liquid nitrogen to save production costs.

The hydraulic press bushing tooling for excavator arm and bucket bar of bushing. The features are a U-shaped steel plate with two eyebolts attached to the closed end, a positioning cylinder attached to one side of the open end and a positioning flange attached to the other side, a threaded connection between the positioning cylinder and the positioning sleeve in the shape of a step shaft, a flange through which the hydraulic cylinder is mounted, and a hydraulic cylinder connected to the step-shaped compression sleeve through the step-shaped connection sleeve. The advantage is that the bushings at both ends of the cylinder can be installed at the same time to achieve cost savings by eliminating the process of soaking the bushings with liquid nitrogen; each part of the tooling is easy to process and simple to assemble. In summary, the invention can install the bushings quickly and easily, reduce the production cost and labor intensity of workers, and has a simple structure, easy manufacturing, low cost, reliable performance, and high efficiency.