Invention Application
US20020046012A1 Method and apparatus for predicting the life of a rolling bearing, rolling bearing selection apparatus using the life prediction apparatus, and storage medium
有权
用于预测滚动轴承的寿命的方法和装置，使用寿命预测装置的滚动轴承选择装置和存储介质
- Patent Title: Method and apparatus for predicting the life of a rolling bearing, rolling bearing selection apparatus using the life prediction apparatus, and storage medium
- Patent Title (中): 用于预测滚动轴承的寿命的方法和装置，使用寿命预测装置的滚动轴承选择装置和存储介质
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Application No.: US09940510Application Date: 2001-08-29
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Publication No.: US20020046012A1Publication Date: 2002-04-18
- Inventor: Hiromichi Takemura , Yasuo Murakami
- Applicant: NSK LTD
- Applicant Address: null
- Assignee: NSK LTD
- Current Assignee: NSK LTD
- Current Assignee Address: null
- Priority: JPP.2000-259767 20000829; JPP.2000-364427 20001130
- Main IPC: G06F017/10
- IPC: G06F017/10
Abstract:
A dynamic equivalent load P is calculated from data information of a rolling bearing. Next, a reliability coefficient a1 is determined, a lubrication parameter aL corresponding to a used lubricant is calculated, and a contamination degree coefficient ac is determined in consideration of a material coefficient. A fatigue limit load Pu is calculated on the basis of the data information. Thereafter, a load parameter null(PnullPu)/Cnullnull1/ac is calculated. On the basis of the lubrication parameter aL and the load parameter null(PnullPu)/Cnullnull1/ac, a life correction coefficient aNSK is calculated with reference to a life correction coefficient calculation map. The bearing life LA is calculated by LAnulla1nullaNSKnull(C/P)p.
Public/Granted literature
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