為了在機(jī)械使用中選擇好的軸承,bi須對(duì)軸承有全.面而深刻的了解.一般來(lái)說(shuō),軸承是根據(jù)詳細(xì)的機(jī)械或機(jī)械設(shè)備設(shè)計(jì)的.用戶應(yīng)根據(jù)所用設(shè)備的結(jié)構(gòu)和尺寸選擇合適的軸承尺寸.同時(shí),必.須了解淮安SKF軸承所能承受的載荷.

In order to select good bearings in mechanical use, Bi must have a comprehensive and profound understanding of bearings. Generally speaking, bearings are designed according to detailed mechanical or mechanical equipment. Users should choose the appropriate bearing size according to the structure and size of the equipment used. At the same time, it is necessary to understand the load that Huaian SKF bearings can bear.

一般來(lái)說(shuō),軸承的選擇bi須考慮zui大載荷的參數(shù).軸承的主要功能是在一定負(fù)荷下工作.因此,在選擇軸承時(shí),應(yīng)計(jì)算所需軸承設(shè)備能給軸承帶來(lái)的zui大負(fù)荷.此時(shí),可通過(guò)計(jì)算載荷來(lái)選擇相應(yīng)的軸承.這些基本因素是選擇.一個(gè)好的軸承輪轂.

Generally speaking, the selection of bearing Bi must consider the parameters of Zui large load. The main function of bearings is to work under a certain load. Therefore, when choosing bearings, we should calculate the Zui heavy load that the required bearing equipment can bring to bearings. At this time, the corresponding bearing can be selected by calculating the load. These basic factors are choice. A good bearing hub.

選擇軸承時(shí)需要考慮的一些因素是不同機(jī)器所需軸承的安裝和拆卸困難.有些機(jī)器需要做一些緊急工作.因此,安裝淮安SKF軸承更容易、更快.因此,應(yīng)選擇一些簡(jiǎn)單的軸承.同時(shí),軸承壽命和材料質(zhì)量也是一個(gè)關(guān)鍵因素.大型機(jī)械應(yīng)選用壽命長(zhǎng)、材質(zhì)好的軸承.

Some factors that need to be considered when selecting bearings are the difficulty of installation and disassembly of bearings required by different machines. Some machines need to do some urgent work. Therefore, it is easier and faster to install Huaian SKF bearings. Therefore, some - bearings should be selected. At the same time, bearing life and material quality are also a key factor. Large-scale machinery should choose bearings with long service life and good material.

如何保證軸承在高溫下正常工作?

How to ensure the normal operation of bearings at high temperature?

現(xiàn)代技術(shù),如核動(dòng)力系統(tǒng)、噴氣發(fā)動(dòng)機(jī)和燃?xì)廨啓C(jī),通常在數(shù)百到數(shù)千度的溫度范圍內(nèi)運(yùn)行.顯然,普通進(jìn)口軸承鋼不能使用.bi須使用高溫軸承鋼或其余耐高溫材料.一般認(rèn)為,當(dāng)溫度超過(guò)120℃時(shí),普通軸承鋼的結(jié)構(gòu)會(huì)發(fā)生變化,屈服強(qiáng)度會(huì)降低,精度會(huì)逐漸降低.當(dāng)進(jìn)口軸承的工作溫度超過(guò)進(jìn)口淮安SKF軸承材料的回火溫度時(shí),其硬度會(huì)顯著降低.當(dāng)工作溫度超過(guò)180℃時(shí),硬度急劇下降,很快就會(huì)發(fā)生早期疲勞磨損.保證進(jìn)口軸承高溫運(yùn)行精度和使用壽命的關(guān)鍵是保證進(jìn)口軸承在高溫下具有足夠的硬度、尺寸和形狀穩(wěn)定性.因此,對(duì)高溫軸承鋼提出以下要求:

Modern technologies, such as nuclear power systems, jet engines and gas turbines, usually operate at temperatures ranging from hundreds to thousands of degrees. Obviously, ordinary imported bearing steel can not be used. Bi shall be made of high temperature bearing steel or other high temperature resistant materials. It is generally believed that when the temperature exceeds 120 C, the structure of common bearing steel will change, the yield strength will decrease, and the accuracy will gradually decrease. When the working temperature of imported bearing exceeds the tempering temperature of imported Huaian SKF bearing material, its hardness will decrease significantly. When the working temperature exceeds 180 C, the hardness decreases sharply and early fatigue wear will occur soon. The key to ensure the high temperature operation accuracy and service life of imported bearings is to ensure that the imported bearings have sufficient hardness, size and shape stability at high temperature. Therefore, the following requirements are put forward for high temperature bearing steel:

1)高溫硬度不低于HRC50-56,金相組織穩(wěn)定.

1) Hardness at high temperature is no less than HRC50-56, and metallographic structure is stable.

2)尺寸穩(wěn)定性好,熱膨脹系數(shù)小,結(jié)構(gòu)無(wú)明顯變化,抗蠕變性能好,高溫下殘余應(yīng)力低.

2) Good dimensional stability, small coefficient of thermal expansion, no obvious change in structure, good creep resistance and low residual stress at high temperature.

3)抗.氧化性好,氧化膜與基體結(jié)合力強(qiáng),耐磨性和疲勞強(qiáng)度好,抗熱震性好,能承受淮安SKF軸承快速的溫度變化,導(dǎo)熱性好;

3) Good oxidation resistance, strong adhesion between oxide film and matrix, good wear resistance and fatigue strength, good thermal shock resistance, can withstand the rapid temperature change of Huaian SKF bearing, good thermal conductivity;

4)進(jìn)口軸承鋼的其余材料性能.

4) The other material properties of imported bearing steel.

文章來(lái)自:淮安SKF軸承 -

Article from: Huaian SKF Bearing -

文章來(lái)自:淮安INA軸承 -

Article from: Huaian INA Bearing -

文章來(lái)自:淮安NSK軸承

Article from: Huaian NSK Bearing

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