oil-free bushing slide bearing with good quality

oil-free bushing slide bearing with good quality System 1

oil-free bushing slide bearing with good quality

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 500 pc

Supply Capability:: 200000 pc/month

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Specifications

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

Material

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

Technical

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

Application

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.

oil-free bushing slide bearing with good quality

Q: What are the commonly used journal bearings?: Split bearing more than two parts. In order to improve the friction properties of the bearing surface, it is often to cast a layer or two layers of antifriction material on its inner surface, called the bearing lining, that is, the Bush is made of double metal structure or three metal structure. The bearing and the bearing seat do not allow relative movement. In order to prevent the movement of the Bush, the flanges at both ends of the bush can be used for axial positioning or fixed on the bearing seat by means of pins (or screws).

Q: Cooling method and structure of sliding bearing: There is air cooling and water cooling. The so-called air-cooled, in the bearing gland position plus fan, through the cooling groove for cooling, no water cooling effect.

Q: What copper is used to produce plain bearings for machine tools?: Self lubrication copper sleeve sliding bearing for machine tool, which is based on high strength copper alloy (CuZn25Al5, CuZn24Al6Fe3Mn4) as the basic material,

Q: Why are the bearings rolling separately?: According to the number of rolling columns, it is divided into single row bearings, double row bearings and multi row bearings.According to its components (rings) can be divided into separable bearings and non separable bearings.According to its structural shape (if there is no loading groove, whether there are inner, outer ring and ring shape, edge structure, or even cage, etc.), it can be divided into a variety of structural types.According to the diameter size divided into miniature bearings (<26mm), small bearings (28-55mm), small and medium-sized bearings (60-115), large bearing (120-190mm), large bearing (200-430mm) and oversize bearing (>440mm).According to the application field, it is divided into motor bearings, mill bearings, main bearings and so on.According to the material is divided into ceramic bearings, plastic bearings, etc..

Q: What are the requirements for the material performance of plain bearings?: When the machine does not work, the axle is resting on the bearing and exerts pressure on the bearing. When the shaft rotates at a high speed, the shaft to the bearing with periodically varying load, sometimes accompanied by shock.

Q: What are the requirements for the structure and properties of plain bearing materials and what are the materials used?: [organization]: the bearing alloy should have the ideal organization of both hard and soft: (1) soft matrix and uniformly distributed hard point (2). Soft particles are distributed on the hard matrix. When the bearing is working, the soft tissue is firstly worn down and sunken, and the lubricant can be stored to form a continuous distribution of oil film, while the hard component plays the role of supporting the journal. Thus, the actual contact area of the bearing and the shaft neck is greatly reduced, so that the friction of the bearing is reduced.

Q: Sliding bearing lubrication, under what circumstances need throttling?: Save the utility can adjust the lubricant pressure to provide lubricating oil bearing agent with membrane response of the bearing capacity and stiffness, and can maintain a constant, so that the lubricating oil change, lubricating oil can improve the pump like nuclear nuclear power station

Q: What are the causes of high temperature of plain bearings?: If it is too high, it is possible to confirm the load and lubrication of the bearing

Q: What will cause the friction coefficient to be inaccurate in a hydrodynamic sliding bearing?: The gap between the shaft and the hole, the shaft speed of these two factors is more critical, gap control is not good, there is no way to form a good oil film, that is, can not form a complete liquid friction

Q: When the sliding bearing works, does the Bush not rotate and the journal rotates?: Generally, the Bush and the bearing seat are relatively fixed, and the shaft rotates; also, the shaft is fixed and the Bush rotates.In fact, it is essentially the same, that is, that one component rotates relative to the other.

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