agricultural bearings Thrust ball bearing

Thrust ball bearing is a separate type of bearings, shaft ring, seat ring and cage can, ball component separation. Shaft ring is cooperating with the spherical ball bearings‍ shaft collar, seat is compatible with the bearing hole ferrule, and there is a gap between the shaft; thrust ball bearings can only bear axial load, one-way thrust ball bearings can only bear axial loads in one direction, two-way thrust ball bearings can withstand axial load in both directions; thrust ball bearings can not limit the radial displacement of the shaft, low speed limits, one-way thrust ball bearings can limit a shaft and housing axial displacement direction, two-way bearing can limit the axial displacement in both directions.

Thrust roller bearings for axial load wind power bearing‍ mainly axial, radial joint load, but the radial load should not exceed 55% of the axial load. And other thrust roller bearings, such bearings lower friction coefficient, high speed, and aligning performance. 29000-type non-stick bearing symmetrical spherical roller, the roller can reduce the relative sliding and raceways at work, and the roller length, large diameter roller quantity, high load capacity, usually oil lubrication, individual low speeds available greased. In the design selection, preference should be given; 80000 Thrust cylindrical roller bearings, 90000 Thrust tapered roller bearings and needle roller thrust bearings AXK can withstand a one-way axial load, than the axial thrust ball bearings much greater load capacity and rigidity, axial occupy a small space. Thrust Crossed Roller Slewing Bearing‍ cylindrical roller bearings and thrust needle roller bearings for low speed applications, thrust tapered roller bearing speed slightly higher thrust cylindrical roller bearings.

LYHY precision spindle bearings Skateboard bearings

Skateboard bearings unlike those yo-yo as precise, because there are eight and four in lock bearing a plate above, for bearing the best eight are replaced, regardless of which axis before ringing off the hook, it is necessary to do so.

Bearing Cleaning

Skateboard bearings cleaning is very simple, spherical ball bearings‍ get the bearing from the board down with a paper towel to grease the bearings, wipe the stain, wipe the wheels inner wall also will change around the front and rear wheel bearings are smooth and look good. Probably every time, the use of high temperatures generated during rotation of the bearing plate, rubber wheels and bearings will close with a week to clean the walls, causing the wheel to change or replace the bearing so often inconvenient when removing the wheel bearing in accord, to avoid trouble can simultaneously clean the bearings.

Bearing oil

Remember to clean the oil, a wide range of oil, edible oil all OK, but it was said to buy back the bearing first soaked in gasoline in the week, so it is a waste of gasoline, buy back, after a week cleaning of use when the oil does not matter, bought back the bearing lubricant to prevent bearing rusty oil stored wind power bearing‍ in the oil with the board when you can send bearing, clean the first time when oil cleared on oils, these oils do not play lubrication, simply can not be heated like a cylinder of liquid only take effect the same amount, only to prevent rust, but is often difficult with the plate bearing rust.

LYHY precision spindle bearings Axial bearing Bearing selection issues to consider

In the choice of the general bearing support to those problems? You can try the following four steps to consider:

How to define the axis position, including radial and axial position is the first thing to consider. General axis adopts double support structure, the radial position of the shaft joint is miniature linear bearings‍ defined by the two support, centripetal or angular contact bearing supports radial location of each Ying Youqi effect. Axial displacement axial displacement axial position may be composed of two supporting the limit in one direction can be limited in two directions by a bearing, in general, the axial positioning in different ways can get different running accuracy. Therefore, the design of supporting structure should be based on the axis of the operation accuracy and working conditions, practical scheme of axial positioning.

At the same time bear radial load and axial load case, supporting often use mounting angular contact bearings and tapered roller bearings are. Angular contact bearings installed in self aligning ball bearing‍ pairs arranged in one of three ways. Two bearing outer ring width end relative installation called back-to-back mounting method. The two support force on bearing span beyond. This arrangement for supporting span large, good steel shaft cantilever, axial thermal elongation, the outer ring is disengaged from the inner trend, so the shaft without jamming, so widely used. But if the pre installed in the shaft when heated, pre tension will be reduced. Two bearing outer ring narrow end relative installation called face to face mounting. The force point two support falls on the supporting span. This arrangement has the advantages of simple structure, installation, debugging convenient and therefore are more widely used, mainly for short axis and the temperature rise is not high, but it should be noted that we must have a spare clearance. The axial clearance also shoulds not be too big, will reduce the running accuracy of the shaft. When the axial load is larger, the need for multiple bearings and bearing, the bearing outer ring width is often used, narrow face relative installation series. Effect of the bearing force are located on the same side of the bearing are arranged in the same direction is also called series. The arrangement of this to the attention of the structure and manufacture to ensure each bearing can be as much as possible uniform load.

The machine is in operation, the general spindle or drive shaft temperature higher than the adjacent parts of the temperature, so the shaft will heat up elongation. In order to keep the shaft to rotate flexibly, in supporting structure design, while meeting the axial positioning accuracy requirements, but also consider Series radial ball bearings‍ the axial heat free expansion requirements. Axial positioning and axial expansion way is the corresponding.

Adjustment of the bearing clearance is to control the running accuracy of the shaft. The axial position adjusting shaft is in order to meet the specific requirements of some of the gear transmission. For example: in the worm, worm axis must fall in the middle plane worm gear to ensure the correct engagement, so the worm shaft can adjust its position in the axial direction. The bevel gear drive, pitch cone cone vertex two bevel gear must coincide, which required two bevel gear shaft can be axially adjusted.

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marine crane bearing To prevent the holder noise measures are as follows

A. cage revolution motion stability, should as far as possible by the ring guide way and pay attention to guide the full lubrication, give the improvement of bearing structure of high speed conditions, the L type roller guide holder is changed to Z type crossed roller bearings‍ ring rib guide holder.

B. bearings rotate at high speed, marine crane ‍bearing pocket clearance of the cage vibration amplitude is much larger than the pocket hole cage vibration amplitude gap is small, so the pocket clearance value is very important.

C. should pay attention to reduce the radial clearance.

D. try to improve manufacturing precision frame maintain, improve the surface quality of the holder, helps to reduce body roll and keep the noise frame collision or friction.

E. actively adopt Taper roller bearings‍ advanced cleaning technology, cleaning effective parts and the set of products, improving the cleanliness of bearing.

5 by rolling vibration

When the operation of the bearing under a radial load, its internal only a plurality of rolling load, due to the ferrule elastic contact constitute the "spring" supporting the rolling body in the radial load line generates periodic oscillation, and the shaft center will therefore vertically moving or moving horizontally, and causes noise. This kind of vibration is called rolling through the vibration, especially in low speed when the more obvious.

And the amplitude is related Flange Slewing Bearing‍ to bearing type, radial load, radial clearance and ball number. Usually the smaller amplitude, if the amplitude is large when the harm, this is often the minish preload appropriate axial clearance or to reduce.

agricultural bearings Effect of temperature on bearing life

Bearing in the work, its size may be changed by changing the structure of the material. This transformation was affected by temperature, thin wall bearings‍ time and stress.

In order to avoid the dimensional change not allowed due to changes in material structure in the work, bearing materials must go through a special heat treatment.

According to Needle Roller Bearing‍ the different types of bearings, bearing in standard hardenability and induction quenching heat treatment of steel, the recommended maximum working temperature is between 120 to 200 degrees. There is a direct relationship between the maximum operating temperature and the heat treatment process can be achieved. If the normal working temperature higher than the highest temperature of some application suggestions, bearing should robotics bearing‍ choose stable series high. If the bearing of continuous working in high temperature, load capacity of the bearing may need to make adjustments.

precision spindle bearings the bearing dust

Use of the bearing noise caused by improper solutions

To solve the dust thin section bearing‍ caused by noise method bearing: cleaning method can improve the bearing, bearing, shaft in the device, hole as well as the matching parts all stern Qing Shen clean; two Su light slip foreign agent within three to improve the precision spindle bearing; seal; four avoid the use of information is not pure or embedded foreign body plastic stick frame.

2, bearing a scar.

To solve the scar Other bearing‍ caused by the noise of the method of bearing: a device not knocking bearing, the bearing and shaft assembly after loading to avoid bearing installed cable bearing seat; avoided shock vibration bearing corrosion and transport two inventory; three using the high viscosity of grease.

3, in case of improper bearing lubricant

To solve the lubricant due to improper noise method: improper bearing lubricant can be divided into three classes: the wrong lubricant; two lubricant lack; three Liner Motion Bearings‍ lubricant aging induration. To choose the appropriate lubricant, lubricant according to the lubrication to add, to regularly replace the lubricant.

marine crane bearing roller bearing installation

How to improve the matching precision cross roller bearing installation.

In order to improve Thin section bearings‍ the matching precision crossed roller bearing installation, must use the measurement methods and tools do not make the bearing deformation, precision measurement of bearing inner and outer circle with the surface size of the actual project, the measurement can be related to the inner and outer diameters of all be measured, and make a comprehensive analysis of the measured data according to this, precision, matching with the shaft and hole of shaft

The installation part size. self aligning bearing‍ The distribution of shaft and hole in the actual measurement of the corresponding size and geometry, temperature and measurement should be carried out in the bearing under the same. To guarantee the higher actual tie effect, the shaft and hole matched with a bearing surface, the roughness should be as small as possible.

In the above measurement, should be in the outer circle and cross roller bearing inner hole, and the corresponding surface of the shaft and the seat hole, on both sides near the assembly chamfer, respectively two groups of marker can indicate the maximum deviation direction, Crossed Roller Slewing Bearing‍ so that in the actual assembly, so that the large deviation match two party aimed at the same azimuth, in this assembly, both of deviation to partially offset. 

agricultural bearings rotating precision bearings

Make two groups to purpose, is the deviation compensation can be considered, the rotating precision bearings on both ends of the respective even increased, and the bearing seat hole and both ends of the trunnion coaxiality error are partially Flange Slewing Bearing‍ eliminated. The mating surface to surface strengthening measures, such as sandblasting, precision plunger diameter slightly larger plug a hole, are beneficial to improve matching precision. Large and outer bearing surplus volume, in order to convenient installation, there also will be the outer circle and the bearing seat hole is made with a small taper, the installation on two square taper fit, and cover with control outer advance amount, the amount of interference in the predetermined range, while the end cover end face friction resistance of the outer end face also contribute to the fixed ring, to prevent the occurrence of peristalsis. This installation Taper roller bearings‍ method is particularly convenient for bearing the vertical installation.

According to the load direction, acting on the cross roller bearing inner ring and the outer ring of the nature and which side of the ferrule is rotating, the load can be divided into the rotating load, static load or non directional load. Under the rotating load and non directional loads shall be taken with the (static ring interference fit), static load bearing ferrule, desirable transition fit or movable fit (clearance). The bearing load

Large or withstand the impact load, vibration, the interference must be increased. The hollow shaft, thin-wall bearing box or light alloy, plastic housings, also need to increase the amount of interference. The requirement to maintain high rotation, should be used in high precision bearings, and improve the dimensional precision of shaft and bearing box, to avoid interference is too large. worm gear speed reducer‍ If the interference is too large, may make the geometry precision bearing shaft or bearing box

Geometry, to the detriment of the rotating precision bearings.‍

precision spindle bearings cross roller bearings

Surface roughness analysis effect of crossed roller bearing properties

Effect of surface flanged ball bearing‍ roughness on the performance of cross roller bearings parts is mainly manifested in the following aspects:

1, the surface roughness affect the wear resistance of parts. The surface is rough, with the effective contact area between the surface pressure is smaller, faster, and wear.

2, the surface roughness effects of cross roller bearing ring with the properties of stability. The clearance fit, the surface of the Full complement cylindrical roller bearings‍ more

Rough, more easy to wear, so the work process of intermediate gap gradually

Increased; the interference fit, the assembly will micro convex peak crowded flat, reduces the effective interference, reduce the

The strength of the bond.

3, the surface roughness of fatigue strength of bearing parts. There is a big trough surface roughness of parts, they are like sharp

Angular notch and slewing bearing‍ crack, the stress concentration is very sensitive,

marine crane bearing Thus affecting the fatigue strength of parts

4, the surface roughness effects of corrosion resistance of marine crane ‍bearing parts. The rough surface, easy to make the corrosive spherical roller bearing‍ gas or liquid through the table

The micro valley into the metal inner layer, causing the surface

Corrosion.

5, the surface roughness of the sealing performance of bearing. Joint cannot be closely between the rough surface, gas or liquid.

Through the gap leakage between the contact surfaces of the.

6, the surface Series radial ball bearings‍ roughness of bearing parts of the contact stiffness. The contact stiffness is parts with surface under the action of external force, resistance

The ability to contact deformation. The machine stiffness in the very great degree

Depending on the components of the contact stiffness between.

Measurement accuracy of 7, effects of cross roller. Parts of the measured surface and a tool for measuring surface roughness will directly

Affect the precision of measurement, especially in precision measurement.

In addition, the surface roughness of agricultural bearings‍ the parts of the coating, thermal conductivity and contact resistance, reflection and radiation performance, liquid

The surface current resistance, conductor and the gas flow distribution etc.

Will have different degrees of influence‍

agricultural bearings Bearing grinding

Bearing grinding: grinding stainless steel material selection method and technical points

Because of some manufacturers of special requirements, Luoyang Boying agricultural ‍bearing production cross roller bearings slewing ring bearings‍ and YRT turntable bearing needs to use the stainless steel material, the need to do not with ordinary high carbon chromium bearing steel grinding, the grinding requirements of stainless steel material are introduced.

1..... Abrasive: white corundum with cutting performance and word sharp good, suitable for grinding martensite and martensitic and ferritic stainless steel; single crystal corundum abrasives suitable for austenitic and austenitic and ferritic stainless steel; microcrystalline corundum abrasive is composed of many small crystals, high strength, toughness and self sharpening good,

The self sharpening Crossed Roller Slewing Bearing‍ characteristics is the gap along the microcrystalline broken column, so as to obtain micro toughness

And micro edge higher, can reduce the burn, hacking and other phenomena, and can reduce the grinding surface roughness, suitable for grinding various stainless steel; cubic boron nitride abrasive high hardness, good thermal stability, high chemical inert, 1300 ℃ ~ 1500 ℃ no oxidation, abrasive blade tip is not easy to blunt, grinding heat is small, suitable for grinding various kinds of stainless steel, in order to reduce the adhesion phenomenon, also can use silicon carbide and diamond abrasive wheel.

2.... size: grinding stainless steel, general grinding wheel with No. 36, No. 46, No. 60 middle size is appropriate, the coarse grinding, the No. 36, No. 46 grain Slewing drives‍ size, with 60 grit grinding. In order to be used for coarse grinding and fine grinding, the No. 46 and No. 60 grain size.

3..... Bond: grinding stainless steel wheel has high strength, in order to bear a larger impact load. Vitrified heat-resistant, resistant to corrosion, wheel it made can keep good cutting performance, moisture resistance, porous, binder for making grinding stainless steel wheel. Grinding tolerance

Concentrated nitric acid stainless steel inner hole, the resin bond grinding wheel manufacturing.‍

precision spindle bearings Turntable bearing

Turntable bearing load on the effects of using precision

To maintain a good state of bearing and the use of performance, maintenance, repair, in order to prevent accidents, ensuring the sealed bearing‍ reliability of operation, increase production, economy. To maintain the best operating conditions of the corresponding mechanical operating standards, regular inspections to maintain in good condition and performance of bearings, maintenance, overhaul, in order to prevent accidents, ensuring the reliability of operation, increase production, economy. slewing bearing‍ To maintain the best operating conditions of the corresponding mechanical operation standard, check regularly. Examination content includes monitoring running state, supplement or replacement of the lubricant, periodic disassembly inspection. As a matter of maintenance in operation, a rotary voice, YRT turntable bearing vibration, temperature, the state of grease and so on. Remove bearing overhaul, the first recorded appearance of the bearings, confirm the remaining amount of lubricant, after sampling inspection by the lubricant, cleaning bearings.

On the basis of efficiency for Double Row Ball Slewing Bearing‍ turntable bearing load on the rotation of the ferrule, working condition, the load ring bear is divided into a fixed load, dynamic load and rocking out load three.