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不合格的轴承套圈会影响轴承的运行，容易损坏轴的内容物。如何识别和纠正使用中的不合格环?
Unqualified bearing rings will affect the operation of bearings and easily damage the contents of the shaft. How to identify and correct unqualified rings in use?
1. 中.心变换法
1. Centroid Transform Method
首先，准确测量淮安SKF轴承每个缺.陷(非对称型)的尺寸，计算出zui小磨损部分(磨损产品尺寸误差)。然后，应使磨损缺.陷偏离中.心部位(增加磨损缺.陷)。zui大偏差为M/2，即.陷处磨损相对增加，主点处磨削。
Firstly, the dimension of each defect and pit (asymmetric type) of Huaian SKF bearing is measured accurately, and the small wear part of Zui (dimension error of wear product) is calculated. Then, the wear defect and sink should deviate from the center part (increase the wear defect and sink). The large deviation of Zui is M/2, i.e. the wear at the notch increases relatively and the grinding at the main point.
中.心偏磨是在保证零件硬度和渗碳层次*的前提下进行的。总偏移量不能一次磨完。它通常分为几个磨削周期，即通过反复的偏置磨削-测量-调整-偏置磨削过程。在去除缺.陷后，椭圆可以从零开始修正，也可以通过常规磨削淮安SKF轴承来修正。该方法效率低，对操作人员的技术水平要求较高。但在单机生产中，该方法具有较高的抢救成功率，不会耽误生产进度。经过多年的实践和验证，它发挥了突出的作用。
Central eccentric wear is carried out on the premise of ensuring the hardness and carburizing hierarchy of parts. The total offset can not be worn out at one time. It is usually divided into several grinding cycles, that is, through repeated bias grinding - Measurement - adjustment - bias grinding process. After eliminating the defect, the ellipse can be corrected from scratch or by conventional grinding Huaian SKF bearing. This method is inefficient and requires high technical level of operators. But in the single machine production, this method has a high rescue success rate, and will not delay the production progress. After years of practice and verification, it has played a prominent role.
2. 热处理及溶胀法
2. Heat treatment and swelling method
进口轴承钢的淬火结构由淬火马氏体、少量不溶*二次碳化物和约12~14个百分比的残余奥氏体组成。淬火马氏体和残余奥氏体是由于排列不稳定造成的。回火过程中，钢的体积随马氏体细化而减小，随淮安SKF轴承残余奥氏体细化而增大。
The quenching structure of imported bearing steel consists of quenched martensite, a small amount of insoluble secondary carbide and residual austenite of about 12 to 14 percent. Quenched martensite and retained austenite are caused by unstable alignment. During tempering, the volume of steel decreases with the refinement of martensite and increases with the refinement of retained austenite in Huaian SKF bearing.
该方法对奥氏体含量较高的重、重零件，特别是进口调心滚子轴承具有明显的效果。在实际生产中，针对不同规格、尺寸和厚度的零件，开发了不同的回火工艺。在保证硬度和变形的前提下，应充分改变排列方式，使其产生较大的溶胀。因此，为了节省浪费，磨损就增加了。
This method has obvious effect on he**y and he**y parts with high austenite content, especially imported self-aligning roller bearings. In actual production, different tempering processes are developed for parts of different specifications, sizes and thicknesses. On the premise of guaranteeing hardness and deformation, the arrangement mode should be changed sufficiently to produce larger swelling. Therefore, in order to s**e waste, wear and tear increases.
化学堆栈
Chemical stack
进口轴承部件使用规模超过计划标准的，可采用化学储存进行抢救。化学堆积的原理是通过各种化学原料之间的化学反应使淮安SKF轴承零件表面均匀地形成一定厚度的金属镀层。额外回火确保金属层的硬度和机械*能与原始零件相同。化学堆积只能在不改变零件形状的情况下增加零件的尺寸。因此，化学物质的积累是一种有.效的补救大部分。现在单侧堆积的zui大厚度可以达到0.1 mm。
If the use scale of imported bearing parts **ceeds the planned standard, chemical storage can be used for rescue. The principle of chemical stacking is to make the surface of Huaian SKF bearing parts uniformly form a certain thickness of metal coating by chemical reaction between various chemical raw materials. Additional tempering ensures that the hardness and mechanical properties of the metal layer are the same as those of the original parts. Chemical stacking can only increase the size of parts without changing their shape. Therefore, the accumulation of chemical substances is an effective remedy for most of them. At present, the thickness of Zui deposited unilaterally can reach 0.1 mm.
文章来自：淮安SKF轴承 www.wh-skf.com
Article from: Huaian SKF Bearing www.wh-skf.com
文章来自：淮安INA轴承 www.ina-china.cn
Article from: Huaian INA Bearing www.ina-China.cn
文章来自：淮安NSK轴承 www.klbbearings.com
Article from: Huaian NSK Bearing www.klbbearings.com
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