Yantai Bonway Manufacturer

Faʻafiafia le polo

O le faia o polo o se ituaiga o faʻataʻavale atu. O le spherical uʻamea uʻamea uʻamea o loʻo faapipiiina i le va o le mama i totonu ma le mama i fafo e faʻaititia ai le feteʻenaʻi i le malosiaga faʻasologa auala ma faʻaleleia le faʻasalalau lelei o le mana eletise e ala i le taʻavale. Ball bearings e le mafai tatalia mamafa avega ma e sili atu ona taatele i mama malamalama alamanuia masini. O bearings polo e taʻua foi o bearings.

Ball bearings mainly include four basic elements: ball, inner ring, outer ring, and cage or retainer. The general industrial ball bearings meet the AISI52100 standard. The balls and rings are usually made of high chromium steel, with Rockwell C-scale hardness between 61-65.

Ball faia faatinoga:
The hardness of the retainer is lower than that of balls and rings, and its materials are metal (such as medium carbon steel, aluminum alloy) or non-metal (such as Teflon, PTFE, polymer materials). Rolling bearing (rolling bearing) has lower rotational friction resistance than journal bearing (journal bearing), so at the same speed, the temperature due to friction will be lower.
Ball bearings e masani ona faʻaaogaina i le maualalo-avega masini faʻasalalau masini. Ona o le fanauina o le polo itulagi o loʻo laʻititi, ogaoga masini faʻaleagaina e ono tupu i lalo o le maualuga-saosaoa faʻagaioiga, o lea o faʻasolo faasee bearings e masani ona faʻaaogaina i le mamafa-avega masini felauaiga e faʻateleina ai le tulaga luga, faʻaleleia atili le lelei faʻatonutonuina o masini, ma faʻaititia le Faʻatinoina faʻaleagaina
O le polo fanauina suia le eseʻesega metotia o le fanauina ma vaʻai taʻavale faʻafefe. O lenei metotia sili faʻafaigofie faʻaitiitia ai le feteʻenaʻi va i le va o le fanauina luga, faʻaleleia le tautua olaga o le ili fananau, ma o lea faʻalauteleina ai le tautua olaga o le radiator. O le faʻaletonu o le gaioiga e sili atu ona faigata, o le tau ua faʻateleina, ma e aumaia ai foʻi le maualuga o le pisapisao o galuega.

1. Features
FAG loloto mataafi polo bearings e leai-tuueseeseina bearings aofia ai mautu totonu totonu ma fafo mama, pa ma uʻamea polo, ia e sili ona fetuutuunai. O le oloa e faigofie i le fausaga, faʻatuatuaina ma anagata, ma faigofie e tausi. E i ai le tele o ituaiga mamanu e pei o le tasi laina, lua laina, matala ma faʻamaufaʻailogaina. Ona o le faʻatulagaina tekinolosi faʻagasologa, o le mama i fafo o le matala fanauina o loʻo faʻaauupegaina ma se mataafi mo faʻamau faʻamau poʻo le pefu ufiufi. Ona o le maualalo taofiofia torque, loloto loloto aluga bearings e talafeagai mo maualuga-saosaoa taotoga.
2. Radial and axial bearing capacity
Due to the geometry of the raceway and the use of steel balls as rolling elements, this type of imported deep groove ball bearing can simultaneously bear bidirectional axial load and radial load.
3. Angle misalignment compensation
FAG tasi laina loloto loloto mataafi polo tulaga faʻatapulaʻa ua i ai le faʻatonuina taui talafeagai, o lea o tatau ona tatau ai ona faʻatulaga lelei. O le le saʻo o le a mafua ai le avea o taʻavale elemeni i se tulaga le lelei, ma o le popole i totonu o le fanauina o le a faʻateleina, ma faʻapuʻupuʻuina ai le ola galue o le fanauina. Ina ia mafai ona faʻatapulaʻaina le faʻamamafa faʻaopoopo o le fanauina i se tulaga maualalo, mo le tasi laina loloto loloto afu polo bearings na o sina tamai manatu (fuafua i le tele o le avega) ma axial avega mafai gafatia e faʻatagaina. Ona o ona uiga fausaga totonu, faalua laina laina mataafi loloto bearings leai ni misalignment taui gafatia. A o faʻaaogaina lenei ituaiga o fanau, e le faʻatagaina se faʻalua tulimanu.
Fa, galulue vevela
O le faʻagaioiga o le vevela o le FAG matala loloto mataafi polo bearings e le maualuga atu nai lo + 120 ℃. A o le galue vevela e maualuga atu nai lo + 120 ℃, faʻamolemole faʻafesoʻotaʻi matou. O le pito i fafo lapoa D o le fanauina e sili atu nai lo 240mm, ma lona dimensional mausali vevela mafai ona oo atu i le 200 ℃. O le galulue vevela vaega o laugutu-faʻamau loloto loloto mataafi bearings o –30 ° C i le 110 ° C, lea e faʻatapulaʻaina e a latou gaʻo ma faʻamau mama mama mea. O le faʻaogaina o le vevela o laina o loʻo faʻamau o le -30 ℃ i le 120 ℃. O le maualuga o le vevela faʻagaioiga o bearings ma tioata alava faamalosia nylon pa e le sili atu + 120 ° C.
Five, cage
FAG loloto mataafi polo fanauina ni faʻataʻitaʻiga e aunoa ma le faʻapipiʻi pa e faʻaaoga ai pa uʻamea. O le faʻauiga upu o le uʻamea polo taʻitaʻi apamemea pa o paʻu o le M. O le faʻailoga I o loʻo faʻailoa mai ai o le pa apa o loʻo faʻailogaina apamemea. Faalua laina loloto mataafi polo bearings, o lona pa e faia i tioata alava faamalosia nylon (faʻapipiʻi TVH). Siaki le tulaga mautu vailaʻau o nylon i gaʻo gaosia ma lubricants o loʻo i ai le mamafa o mea faʻaopopo. I le maualuga o le vevela, o le matua o lubricants ma suauʻu faʻaopopo o le a faʻaititia ai le ola olaga o nylon cages. O le suauʻu suia le taʻamilosaga e tatau ona mulimuli ai.

A self-aligning ball bearing is a bearing equipped with spherical rolling elements between the inner ring of two raceways and the outer ring whose raceways are spherical. It can bear larger radial load, but also can bear certain axial load. The outer ring raceway of this kind of bearing is spherical. So it has self-aligning performance.
The main features of self-aligning ball bearings are:
(1) The outer ring raceway of a self-aligning ball bearing is a part of a spherical surface, and the center of curvature is on the bearing axis. Therefore, the bearing has a self-aligning function. When the shaft and housing are deflected, it can be adjusted automatically. No additional bearing burden.
(2) It can bear radial load and appropriate axial load in two directions. But it cannot bear moment load.
The contact angle of this type of bearing is small, the contact angle is almost unchanged under axial load, the axial load capacity is small, the radial load capacity is large, and it is suitable for heavy load and impact load.
(3) Double-row self-aligning ball bearings with adapter sleeves and lock nuts can be installed at any position on the optical axis without the need for positioning shaft shoulders.

faʻaoga:
O le mafuaʻaga o le faia o le polo o le faʻamautinoa le tulaga faʻatulagaina o vaega e lua (e masani lava o le pou ma le nofoa o le nofoa) ma ia mautinoa la latou feʻaveaʻiga saoloto, aʻo faʻasalalauina le avega i le va o latou. I saoasaoa maualuga (pei o i gyro polo itulagi), o lenei faʻaaogaina mafai ona faʻalauteleina e aofia ai feʻaveaʻiga saoloto ma toetoe lava leai ofu i le fanauina. Ina ia mafai ona ausia lenei tulaga, o se pipiʻi suavai ata tifaga taʻua o le elastohydrodynamic lubricating film e mafai ona faʻaaogaina e vavaeʻese ai vaega e lua o le fanauina. Na faailoa mai e Denhard (1966) o le eletise e mafai ona tumau e le gata pe a fai o le amoina o le avega i luga o le pou, ae o le taimi foi e muamua ai ona maua le avega, o le sao ma le mautu o le pou e le sili atu i le 1 microinch poo le 1 nanoinch Ata e faʻasusu ai le Hydrodynamic [1].
Ball bearings are used in various machines and equipment with rotating parts. Designers often have to decide whether to use a ball bearing or a fluid film bearing in a particular application. The following characteristics make ball bearings more desirable than fluid film bearings in many situations,
1. The starting friction is small and the working friction is appropriate.
2. Can withstand combined radial and axial loads.
8. Not sensitive to interruption of lubrication.
4. There is no self-excited instability.
5. Easy to start at low temperature.
Within a reasonable range, changing the load, speed and working temperature has only a small effect on the good performance of the ball bearing.
The following characteristics make ball bearings less desirable than fluid film bearings.
1. The limited fatigue life varies greatly.
2. The required radial space is relatively large.
3. The damping capacity is low.
I. The noise level is high. ·
6. The alignment requirements are stricter.
6. maualuga tau.
According to the above characteristics, piston engines usually use fluid film bearings, while jet engines almost exclusively use ball bearings. Various types of bearings have their own unique advantages. In a given application, the most suitable bearing type should be carefully selected. The British Engineering Scientific Data Organization (ESDU 1965, 1967) has provided useful guidelines for the important issue of bearing selection.

Tuuina kiliaina:
Bearing clearance (internal clearance) refers to the total distance that a bearing ring can move in a certain direction relative to another ring before the bearing is installed with the shaft or the bearing housing. According to the moving direction, it can be divided into radial clearance and axial clearance, as shown in Figure 1.
O le kilia i totonu o le fanauina i luma o faapipiiina tatau ona iloga mai le kilia i totonu (faʻagaioiga kilia) o le fanauina pe a oʻo i le faʻagaioia o le vevela pe a maeʻa ona faʻapipiʻi. O le uluaʻi faʻamaoniga i totonu (i luma o faʻapipiʻi) e masani ona sili atu nai lo le kilia faʻagaioiga. E mafua ona o le eseesega i le tikeri o le ofi aofia ai i le faʻapipiʻiina ma le eseʻesega i le faʻalauteleina vevela o totonu ma fafo mama o le fanauina ma fesoʻotaʻiga vaega e mafua ai totonu ma fafo mama e faʻalauteleina pe fai konekalate.
Bearing internal clearance and specified value
The size of the internal clearance (also called the clearance) of the rolling bearing in operation has a great influence on the bearing performance such as fatigue life, vibration, noise, and temperature rise.
Therefore, choosing the internal clearance of the bearing is an important research project for the bearing that determines the structural size.
Generally, in order to obtain a stable test value, a specified test load is given to the bearing, and then the clearance is tested. Therefore, the measured clearance value is larger than the theoretical clearance (in the radial clearance, also called geometric clearance), that is, one more elastic deformation caused by the test load (called the test clearance Show the difference).
Generally, the clearance before installation is specified by the theoretical internal clearance.
Choice of internal clearance

The following points should be considered when selecting the most suitable clearance according to the conditions of use:
(1) The matching of the bearing, the shaft and the housing causes the change of the clearance.
(2) The clearance changes due to the temperature difference between the inner and outer rings when the bearing is working.
(3) The material used for the shaft and the housing affects the change of bearing clearance due to different expansion coefficients.
E masani lava, o le faʻamalamalamaina radial o le autu kulupu e tatau ona faʻaaogaina muamua mo le bearings e galue masani. Ae mo bearings e galue i lalo o tulaga faʻapitoa, pei o le maualuga vevela, maualuga saosaoa, maualalo leo, maualalo feteʻenaʻi ma isi manaʻoga, e mafai ona filifilia le faʻamamaina radial o le ausilali vaega. Filifili laʻititi laʻititi faʻamalama e faʻaaoga mo mea faʻapitoa ma mea e faʻaaoga e faʻatau ai masini. Afai ei ai ni manaʻoga faʻapitoa mo le mauaina o kilia, o le fanauina mafai ona faʻamalieina manaʻoga o tagata faʻatau.

When the bearing is running, due to the combined action of its internal friction, lubricant stirring and other external factors, it will cause the bearing temperature to rise and the parts to expand.
(1) Faʻatasi ai ma le tuʻuina atu o tapulaa, o le faʻafesoʻotaʻiga o le pito i ai le tele o le aʻafiaga o le axial kilia suiga. (2) Faʻatasi ai ma le aʻafiaga o le faʻalavelave faʻafetaui, aafiaga centrifugal, ma le vevela tulaʻi i luga o le kiliaina kilia, faʻalavelave faʻafetaui o le sili aafiaga taua. (3) I faʻatinoga faʻatinoga, pe a fai o le tuʻuina mai o se faʻalavelave faʻalavelave, o le aʻafiaga o le faʻalavelave faʻalavelave i le kilia o moliaga e manaʻomia ona amanaʻia, ma o se aofaʻi aofaʻiga o le kiliaina e tatau ona faʻasaoina e aloese ai mai le tele muamua-faʻamalosia malosiaga ma vave toilalo o le fanauina. A faʻapea e faʻapipiʻi moni le faʻatatauina ole polo polo, o le suiga ile faʻamalamalamaina e tatau ona liua ile suiga ile faʻagaioiga axial mo le iloiloga.

Olo faataamilo:
In the design of mechanical parts, rolling bearings and sliding bearings are often used. Compared with sliding bearings, rolling bearings have the following advantages and disadvantages.
lelei:
(1) In general working conditions, the friction coefficient of the rolling bearing is small and will not change with the change of the friction coefficient. It is relatively stable; starting and running torque is small, power loss is small, and efficiency is high.
(2) The radial clearance of the rolling bearing is small, and it can be eliminated by the method of axial preload, so the operation accuracy is high.
(3) Rolling bearings have a small axial width, and some bearings can bear combined radial and axial loads at the same time, with compact structure and simple assembly.
(4) Rolling bearings are standardized components with a high degree of standardization and can be produced in batches, so the cost is low.
tulaga le lelei:
(1) Rolling bearings have a small contact area between rolling elements and pipes, especially ball bearings, which have poor impact resistance.
(2) Due to the structural characteristics of rolling bearings, vibration and noise are large.
(3) The life of rolling bearings is reduced under high speed and heavy load.
(4) The inner and outer rings of the rolling bearing adopt an integral structure, and cannot adopt a partial structure, which makes it difficult to install the bearing in the middle of the long shaft.