Oilless Bushing Product advantages:

The advantages of self-lubricating bearings (oil-free bearings), most of the bearings used in various machinery industries are ball bearings, needle rolls and so on, but a small part of the use of self-lubricating bearings, I believe that in the near future will come from lubricating bearings will become the dominant bearings.

The following are the application characteristics and advantages of partially self-lubricating bearings:

Oil-free lubricated bearing series:

1, no oil lubrication or less oil lubrication, suitable for refueling or difficult to refueling places, can be used without maintenance or less maintenance. Self-lubricating bearing

2, good wear resistance, small friction coefficient, long service life.

3. With the right amount of elastoplastic, the stress can be distributed on a wider contact surface and the bearing capacity can be improved.

4, static and dynamic friction coefficient is similar, can eliminate crawling at low speed, so as to ensure the working accuracy of machinery.

5, can make the machine reduce vibration, reduce noise, prevent pollution, improve working conditions.

6, in the process of operation can form a transfer film, play a protective role on the grinding shaft, no shaft biting phenomenon.

7, for grinding shaft hardness requirements are low, without quenching and tempering treatment of the shaft can be used, so as to reduce the processing difficulty of the relevant parts.

8, thin wall structure, light weight, can reduce the mechanical volume.

9, the back of steel can be electroplated with a variety of metals, can be used in corrosive media; It has been widely used in sliding parts of various machinery, such as printing press, textile machine, tobacco machinery, micromotor, automobile, motorcycle and agricultural and forestry machinery, etc.

Boundary lubricated bearing series:

1. Good bearing capacity, good wear resistance.

2. It is suitable for rotating motion and swinging motion under high load and low speed, and for occasions where opening and closing frequently under load is not easy to form hydrodynamic lubrication.

3. In the condition of boundary lubrication, it can be long-term without refueling and maintenance, while refueling in the layer makes the bearing longer service life.

4. The plastic layer on the surface can leave a certain allowance when processing and forming, and can be processed by itself after assembling and pressing into the seat hole, so as to achieve better assembly size.

5. The products are mainly used in automobile chassis, metallurgical machinery, mining machinery, water conservancy machinery, construction machinery, agricultural machinery, steel rolling equipment, etc.

JDB solid inlaid bearing series:

General basic products, whether high pressure, low pressure, high temperature, low temperature, oil lubrication, oil free lubrication or water lubrication, can be adapted. The base of the product is high force brass, which is twice as hard as the general copper sleeve and more than twice as wear-resistant.

Widely used in: light industry machinery, heavy industry machinery, construction machinery, metallurgical machinery, conveying machinery, such as: continuous casting machine, rolling mill, injection molding machine, paper machine, mold guide post, ships, machine tools and so on.

Oilless Bushings Metric Size

（unit：mm）

Oilless Bushing Features
Conventional models are available in stock.
It can be used without oil.
Excellent friction performance under high load and low speed.
Suitable for reciprocating, shaking, and frequent start and stop situations where oil film is difficult to form, with excellent wear resistance.
Good drug resistance and corrosion resistance.

BUCHA BRONZE GRAFITADO

Process and Principle:

Special production process:

Due to the requirements of special production technology, some key equipment of industrial and mining enterprises run under extremely bad conditions. Due to the heavy equipment, high temperature, dust or air containing acid corrosion in gas CO, SO2, etc., bring many problems of equipment lubrication, friction and wear is serious, so far, most of the domestic enterprises is still using the traditional oil, grease, and the fact that the industrial and mining condition is beyond the scope of oil, grease, It is easy to bite or kill bearings and other friction pairs, causing serious wear and damage of parts, and often leading to equipment outage.

In order to produce continuous operation, in addition to the original design required the installation of multiple equipment wheel repair, also need to invest a large number of maintenance personnel. Seriously restrict the improvement of productivity, spare parts and energy consumption, has become an important obstacle to the development of production. Automobile manufacturing, cement production, petrochemical and other enterprises have put forward the requirements of special lubricating materials under complex working conditions.

Therefore, the research on inlaid self-lubricating composite material highlights its own characteristics in material formulation and preparation process, and the material performance has reached the international advanced level, which solves the lubrication problem under special working conditions for enterprises, and brings obvious economic and social benefits. But for a variety of reasons more domestic enterprises have not adopted, the situation still exists.

Key technical principles:

The composite material used for inlaid self-lubricating bearing is a new type of extreme pressure resistant solid lubricating material, which is composed of metal substrate and solid lubricant paste embedded in the hole or groove of the substrate. In the friction process, the metal substrate bears most of the load. After the friction, the solid lubricant in the hole or groove transfers to the friction surface or reverse transfer, forming a solid transfer film with good lubrication, firm adhesion and uniform coverage on the friction surface, greatly reducing the friction and wear. As the friction goes on, the solid lubricant embedded in the friction surface is constantly provided to ensure the good lubrication of the friction pair during long-term operation

Solid Bronze Bushings SPB Bushing Self Lubricating Bearings

bucha grafitada

Tags: bucha grafitada, bucha de bronze grafitada, bucha grafitada de bronze

Key Characteristics:

1. May work without any oil for long period.
2. Extremely high load capacity, good anti-wear, and low friction.
3. Particularly appropriate for low speed and high load.
4. Suitable single direction axial loads
5. Free design is possible on the shape and size
6. Can be used in a wide range of temperatures, from － 40℃＋ 300℃

Oil-free Bushing & Bronze Bearing Design

The geometry, as well as the choice of material, is based on the specific application of the bearing. This means that each bearing is specially made to meet all load, environmental, and temperature requirements where it is to be used.

Base material produces a wide range of copper-based alloys, which are used as base material on oil-free bushing bearings. Data relating to four of those alloys are given in the table below. The capacity or carrying load is very much dependent on the choice of alloy, The selection of the base material will thus be based on the requirement of load-carrying capacity. Note that the temperature has an influence on the allowable load values and also the choice of lubricant.

• CuSn5Pb5Zn5 Gun Metal oil-free bronze bushing
• CuSn12 Tin Bronze oil-free bronze bushing
• CuSn10Pb10 Lead-Tin Bronze bushing

OIL-FREE BEARING SIZE

Oilless Lubricating Bushings: The Self-Lubricating Effect – bronzelube.com

Serviceable without the need for lubrication. Demonstrates high performance under high-load and low-speed operations. Demonstrates superior wear resistance in applications where oil film is seldom produced such as reciprocating motions, oscillation, frequent starts, and stops, etc. Superior chemical resistance and corrosion resistance. Standard products are available in various sizes. Applicable to rotation, oscillation, and reciprocating motion. Not for use underwater.

Contact Us