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TIMKEN bearing installation methods discussion  

2012-09-13 11:31:17|  分类: 技术 |  标签: |举报 |字号 订阅

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  第一种:TIMKEN轴承采用间隙配合的安装方法
当TIMKEN轴承套圈回转负荷时,如采用间隙配合安装,则在轴承的旋转过程中该套圈的配合表面将会发生蠕动现象,易产生微动磨损,此时配合表面会出现烧伤、龟裂等损伤,因此,TIMKEN轴承承受回转负荷的套圈和机械部件的轴颈或座孔的配合应采用过盈配合。
  First: TIMKEN bearing clearance fit installation method
  When a TIMKEN bearing rings rotating load, such as the use of a clearance fit installation, in the mating surfaces of the bearing in the rotation of the ring will crawl, easy to produce fretting, Burns, cracks and other damage mating surfaces occur at this time, therefore, TIMKEN bearings are subjected to Rotary load ring and shaft neck or holes of mechanical parts combined with interference fit should be used.
  第二种:TIMKEN轴承采用轴向闭合或部分用径向紧配合的安装方法
在机械的支承部位中,TIMKEN轴承应该在径向、轴向及周向(切向)三个方向得到不同要求的定位固定。一般情况下,TIMKEN轴承的轴向固定是采用轴向闭合或部 分用径向紧配合来实现的,机构支承中自由侧的轴承往往在轴向不加以固定,以补偿机构系统在轴向安装或热胀冷缩过程中的尺寸变化。TIMKEN轴承径向和切向 的固定方法,一般均由轴承的内径和轴外径和轴承座内孔配合来实现。
  Second: TIMKEN bearing axial radial tight fit of the closed or partly by installation method
  Machinery in supporting parts, TIMKEN bearings should be radial, axial and circumferential (tangential) in three directions get different require a fixed position. Under normal circumstances, TIMKEN bearings axial fixed is closed or partly by axial radial tight fit to achieve, agencies supporting free side bearing is often not fixed axially, to compensate for the system to install the axis or in the process of expansion and contraction of the size changes. TIMKEN bearings-radial and tangential approach to fixed, typically by the bearing inner diameter and outer diameter of shaft and bearing bore fit to achieve.
  第三种:采用加热法来安装
当TIMKEN轴承的内径大于70mm,或配合过盈较大时,采用加热法使轴承孔膨胀,这样安装省力省时,也避免因施力过大而导致的损伤。 这时需要控制的是加热温度,一般将轴承加热至80℃,最高100℃.就够了。超过120℃就会导致TIMKEN轴承发生回火现象,致使套圈的硬度降低与精度降低。
  Third: the use of heating method to install
  When a TIMKEN bearing inside diameter is greater than 70mm, or with an interference is large, the heating method of bearing hole expansion, so install saving time, also to avoid damage due to excessive force. You may need to control the temperature, usually bearing heated to 80 ° c, maximum 100 ℃. it is enough. More than 120 ℃ will lead to a tempering TIMKEN bearings, which rings of lower hardness and a loss of precision.

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