oil-free bushing slide bearing with good quality

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Product Description:


oil-free bushing
1,can be work without oil condition
2,low wear,low friction and with long life.
3,low vibration,low noise

oil-free bushing 



1.PTFE with fibre 0.01~0.03mm 

2.Porous bronze 0.2~0.3mm 

3.Steel backing 0.7~2.3mm 

4.Tin-plating 0.005mm or copper plating 0.008mm 



Load capacity               140N/mm2 

Temperature                 -195°C ~ +280°C 

Speed limit                    5m/s 

Friction coef(u)              0.04~0.20 

PV Limit(Dry)                 3.6N/mm2 .m/s 



1.PTFE and fibre can protect the shaft while in operation. 

2.It is suitable for the machine required harmless to people because 

of Lead-free. 

3.Goodload capacity and anti-wear. 

4.Bronze and steel have good thermal conductivity. 

5.Anti-corrosion because of surface plating. 

6.It is widely used in general machines,and suitable for food machine,pharmaceutical 

machine,tobacco machine etc.It will subsitute SF-1 series bushings in future because of environment protection. 

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Q:How to distinguish sliding bearings and rolling bearings?
Rolling bearings are generally made up of outer rings, inner rings, rollers, and cagesPlain bearings are bearings that work under sliding friction. In liquid lubrication, the sliding surfaces are separated by lubricant without direct contact
Q:What is the effect of clearance on sliding bearings?
Small gap, high accuracy, but too small, can not guarantee lubrication, oil film can not be formed. The gap is large, the accuracy is low, the operation is prone to jitter, and the oil film is unstable.
Q:Establishment of oil film bearing capacity of dynamic sliding bearing and several conditions to ensure full liquid lubrication
Establish three conditions: relative speed, reasonable wedge, adequate lubrication. This is a necessary condition.
Q:What are the technical requirements and precautions for the assembly of plain bearings?
The basic function of plain bearings is to accurately locate the shaft and to support the shaft without damaging it under load. Shafts usually cost higher and are often uneconomical to replace. Selecting the bearing alloy that meets certain performance requirements can guarantee the minimum wear of the shaft.
Q:What are the components of plain bearings?
1 integral radial sliding bearings (bearing housings, integral bushings, oil holes, threaded holes)
Q:Why are lubricated bearings lubricated by sliding bearings? Why grease lubrication?
Rolling bearings generally due to the conditions of economic problems, the use of grease lubrication, but also enterprises choose oil lubrication.
Q:How to determine the length of journal bearings?
The bearing length is determined according to the actual needs can be a general integer, you can also ask the Advisory Jiaxing corun Bearing Co. ltd..
Q:The commonly used sliding bearing materials are divided into metal materials and which two materials
Metal materials and non-metallic materials, non-metallic materials, and engineering plastics, carbon graphite, rubber, wood, metal materials, sub bearing alloy, copper alloy, aluminum base bearing alloy, cast iron, porous metal materials
Q:What are the methods of casting plain bearings?
According to the actual conditions: sand casting, centrifugal casting, casting bar material. There are usually special requirements, such as aircraft use, the use of super large engines, will be based on the use of the effect of casting process.
Q:What are the differences between rolling bearings and plain bearings? What are their respective applications?
The second is the movement in different ways, the way of rolling motion the bearing is rolling motion; x0d sliding bearing is sliding, so the situation on the friction is not the same. The general mechanical equipment used in relatively small rolling bearing, high speed, such as motor x0d, Gear box, sliding bearing applications generally in low speed and heavy load conditions, or maintenance and operation of the site maintenance and lubricating oil is difficult, such as ship propulsion shaft x0d.x0d hope my answer to help you.

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