Since the plastic layer smooth bearing surface in the processing of forming can be sure to stay allowance, can install the seat hole, and to reach a better set size.
Since the use of the smooth bearing about what is good and sliding bearing elements?
Us in choosing the smooth bearing at first to watch the three goals of qualified.
A, hardness, hardness is one of the key principle of circle, bearing quality, the contact fatigue strength, wear resistance, smooth elastic limit all the bearing have indirect effects.
Smooth since the stiffness of the bearing under the condition of using individual to reach HRC61 ~ 65, the high hardness of bearing can acquire higher contact fatigue strength and wear resistance.
Solid Mosaic from the smooth bearing profile: metal Mosaic solid since the smooth bearing (
JDB)
Is a combined metal bearing characteristics, and the smooth bearing characteristics of novel smooth bearing, by accepting load matrix, and the special formula of solid smooth data smooth effect.
It is to high, impact resistance, high temperature resistant, the smooth ability strong features, especially suitable for overloading, low-speed, reciprocating or swing, difficult to smooth and constitute the place of the oil film, not afraid of the water and other acid erosion and erosion.
Tear open come down to the bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the bearing is not direct contact with dirt from the container.
Coarse when cleaning, if to spin bearing with dirt, can damage the bearing rolling surface, should be pay attention to.
In coarse clean oil, use brush clean up to smooth grease, adhesive, after clean, roughly into fine cleaning).
Fine cleaning, bearing side rotation in the wash oil, serious cleaning.
In addition, cleaning oil often should insist on cleaning.
Vast users generally reflect the inlaid bearing not fuel-efficient, energy saving, and its working life is longer than ordinary sliding bearing.
The use of the smooth bearing, has been widely used in metallurgical continuous casting machine, rolling just equipment, mining machinery, shipping, steam turbine, water turbine, injection molding machine and equipment consumption line.
Big local bearing, using JIS SUJ2 steel grade.
Use SUJ3 large bearing.
The chemical composition of SUJ2, around the world, as the sliding bearing with data has been normalized.
For example: with AISL52100 (
The United States)
DIN100Cr6 (
West Germany)
BS535A99 (
The UK)
All belong to the same steel.
Sliding bearing device at startup, the friction coefficient is very large, after work, reduce the friction coefficient, but in a certain range change is relatively small, the size of the change relative to the pressure effect on the friction coefficient is large, so in cement kiln fever often adopt the method of reduction kiln speed, although have effect, but most can't change the fate of the fever, it is for this reason.
Further demand under the condition of impact resistance, as a bearing material using nickel chrome steel, chrome molybdenum steel, chrome molybdenum steel, using carbon quenching, make the steel from appearance to the appropriate depth has a soft layer.
There is something wrong with this, the practice on the friction coefficient is increased with the increase of the pressure per unit area, once the coefficient of friction, the friction heat will increase, once the friction heat to heat than can distribute heat, equilibrium breakthrough, bearing heating.
With proper softening depth, fine structure, comply with the hardness of the hardness of appearance and the core permeability coal bearing, than using the bearing steel bearing has excellent resistance to impact, the chemical composition of individual permeability coal bearing steel.
Since the smooth bearing in the application of principle 1, without oil or less oil is smooth, smooth is applicable to cannot go or it's hard to go places, but don't enjoy or less care when using.
2, wear-resisting performance is good, small friction coefficient, long use life.
3, have the right amount of elastic-plastic, stress can be spread in wide contact surface, the progress of bearing load ability.
4, the static friction coefficient, can eliminate creep under low speed, so as to ensure the accuracy of the mechanical work.
Early to open the packing can form internal contamination before use, at the same time, the work environment considered in the process of settling oilless bearing contamination.
Without oil bearing is a kind of both metal bearing characteristics and smooth without oil bearing characteristics of the novel and smooth bearing, by accepting load matrix, and the special formula of solid smooth data smooth effect.
Widely used in metallurgical continuous casting machine, rolling just equipment, mining machinery, shipping, steam turbine, water turbine, injection molding machine and equipment consumption line.
Why, then, without oil bearing is widely applied?
The following a to know!
Oilless bearing advantages as is known to all, all the smooth running of the machine must use some kind of bearing.
5, can reduce mechanical vibration, reduce noise, avoid pollution and improve the working conditions.
6, constitute a transfer of membrane during the operation process, have the effect of maintenance of grinding axis, no bite shaft phenomenon.
7, low hardness request, about the grinding axis of shaft can be used without tempering treatment which reduces the processing difficulty of related parts.
8, thin-walled structure, light quality, can reduce the mechanical volume.
Nine tails can be plating a variety of metal, steel, can be applied in corrosion medium;
Has been widely applied to various mechanical sliding parts, others to improve sensitivity of sliding bearing sphere, the sphere of tile and tile seat contact area shrinkage of small, especially the middle groove sphere tile, only a tiny local contact, both sides of the groove, the friction will soar, does not favor the sphere of activity.
For example: printing presses, textile machines, tobacco machinery, micro-motor, automobiles, motorcycles and forestry machinery and so on.