In addition to structural design, Xuzhou NSK bearings have four main aspects: impact, material, manufacturing, use and lubrication technology.

（1）材料影響：在軸承材料技術(shù)上，主要通過(guò)材料選擇、材料保證和熱處理，保證軸承壽命的提高。滾動(dòng)軸承一般采用高碳鉻軸承鋼，其化學(xué)成分基本不變。但是，不同冶煉方法中物料的純度不同，對(duì)使用壽命有很大影響。因此，材料對(duì)徐州NSK軸承疲勞壽命的影響非常重要。

(1) Material influence: In the bearing material technology, mainly through material selection, material assurance and heat treatment, to ensure the increase of bearing life. High carbon chromium bearing steel is generally used in rolling bearings, and its chemical composition is basically unchanged. However, the purity of materials in different smelting methods is different, which has a great impact on the service life. Therefore, the influence of materials on the fatigue life of Xuzhou NSK bearings is very important.

（2）表面粗糙度的影響：疲勞裂紋通常起源于表面，因此表面對(duì)零件的壽命有很大的影響。表面越光滑，疲勞裂紋萌生時(shí)間越長(zhǎng)。滾動(dòng)軸承的滾動(dòng)體和軸承套圈的表面處理技術(shù)可以改變滾動(dòng)體表面材料的硬度、殘余應(yīng)力分布和整體強(qiáng)度，從而提高軸承的壽命。

(2) The influence of surface roughness: Fatigue cracks usually originate from the surface, so the surface has a great influence on the life of parts. The smoother the surface is, the longer the fatigue crack initiation time is. The surface treatment technology of rolling element and bearing ring of rolling bearing can change the hardness, residual stress distribution and overall strength of the surface material of rolling element, thereby improving the life of bearing.

（3）溫度的影響：無(wú)論是基于表面應(yīng)力疲勞模型還是從表面缺點(diǎn)開(kāi)始，都不考慮接觸區(qū)加熱對(duì)軸承疲勞壽命的影響。事實(shí)上，軸承的連續(xù)運(yùn)行須伴隨一定的溫升。徐州NSK軸承溫升范圍應(yīng)與接觸副之間的潤(rùn)滑膜厚度、接觸件的表面特性、負(fù)載和運(yùn)行速度有關(guān)。

(3) The influence of temperature: whether based on the surface stress fatigue model or from the surface shortcomings, the influence of contact zone heating on Bearing fatigue life is not considered. In fact, the continuous operation of bearings must be accompanied by a certain temperature rise. The temperature rise range of Xuzhou NSK bearings should be related to the thickness of lubrication film between contact pairs, the surface characteristics of contact parts, load and running speed.

（4）潤(rùn)滑技術(shù)的影響：在軸承潤(rùn)滑技術(shù)中，主要通過(guò)選擇潤(rùn)滑油和潤(rùn)滑方式來(lái)提高軸承的使用壽命。潤(rùn)滑技術(shù)已成為提高軸承壽命的關(guān)鍵因素之一。特別是對(duì)于密封軸承，潤(rùn)滑脂壽命已成為軸承使用壽命的另一個(gè)“代詞”，即潤(rùn)滑脂壽命是軸承的使用壽命。

(4) The influence of lubrication technology: In the bearing lubrication technology, the service life of bearings is improved mainly by choosing lubricating oil and lubricating methods. Lubrication technology has become one of the key factors to improve bearing life. Especially for sealed bearings, grease life has become another "pronoun" of the service life of bearings, that is, grease life is the service life of bearings.

（5）運(yùn)行速度的影響：徐州NSK軸承疲勞壽命與瞬時(shí)接觸時(shí)間有關(guān)。瞬時(shí)接觸時(shí)間是指在較大載荷下接觸滾圈與滾體之間滾道橢圓寬度所需的時(shí)間。隨著轉(zhuǎn)速和瞬時(shí)接觸時(shí)間的增加，軸承的疲勞壽命降低。軸承運(yùn)轉(zhuǎn)越慢，通過(guò)旋轉(zhuǎn)測(cè)量的軸承使用壽命越長(zhǎng)。

(5) The influence of running speed: The fatigue life of Xuzhou NSK bearing is related to the instantaneous contact time. Instantaneous contact time refers to the time required to contact the elliptical width of the raceway between the rolling ring and the rolling body under larger loads. With the increase of rotational speed and instantaneous contact time, the fatigue life of bearings decreases. The slower the bearing runs, the longer the service life of the bearing measured by rotation.

（6）載荷效應(yīng)：滾子參數(shù)和曲率系數(shù)對(duì)深溝球軸承的疲勞壽命影響很大。結(jié)果表明，載荷對(duì)深溝球軸承的疲勞壽命影響很大。滾動(dòng)軸承的疲勞壽命在很大程度上取決于大滾動(dòng)載荷。因此，隨著載荷的增加，大滾動(dòng)載荷顯著增加，疲勞壽命降低。

(6) Load effect: Roller parameters and curvature coefficient have great influence on the fatigue life of deep groove ball bearings. The results show that the fatigue life of deep groove ball bearings is greatly affected by the load. The fatigue life of rolling bearings depends largely on large rolling loads. Therefore, with the increase of load, the large rolling load increases significantly and the fatigue life decreases.

文章來(lái)自：徐州SKF軸承 www.wh-skf.com

Article from: Xuzhou SKF Bearing www.wh-skf.com

文章來(lái)自：徐州INA軸承 www.ina-china.cn

Article from: Xuzhou INA Bearing www.ina-China.cn

文章來(lái)自：徐州NSK軸承 www.klbbearings.com

Article from: Xuzhou NSK Bearing www.klbbearings.com

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