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冷風式冰機冷媒管道 内 的 堵塞與清除 Machine/Equipment: Refrigerator System Maker/Manufacturer: (General) Type and Model: For R404a Air Cooler Units 民以食為天 , ...

2024年2月18日

Approximate Rating Life of Ball/Roller Bearings

/滾柱 軸承的額定壽命概估


詳情請參考下列網址:
https://www.amroll.com/bearing-selection-load-life.html


“Rating Life” is the bearing life calculated for 90% reliability.  This is the amount of time that a group of apparently identical bearings will complete or exceed before the formation of a fatigue spall.
The basic formula for calculating bearing L10 rating life is: 

「額定壽命」是以90%可靠性計算的軸承壽命。 這是一組表面上相同的軸承在出現疲勞剝落之前所經歷或超過的時間。
計算軸承L10額定壽命的基本公式為:

where:

  • C = Dynamic Capacity (dN or Lbs)
  • P = Equivalent Bearing Load (N or Lbs)
  • N = Rotating speed in RPM
  • e = 3.0 for ball bearings, 10/3 for roller bearings   

In fact,
The quality, load design, bearing stress and lubrication conditions of Ball/Roller Bearings are key factors affecting their service life.
事實上,
球珠/滾柱 軸承的品質、負荷設計、軸承應力和潤滑條件是影響其使用壽命的關鍵因素。



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