Loading...
Please wait, while we are loading the content...
Similar Documents
Relation between Hertz Stress-Life Exponent, Ball-Race Conformity, and Ball Bearing Life
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zaretsky, Erwin V. Poplawski, Joseph V. Root, Lawrence E. |
| Copyright Year | 2008 |
| Abstract | ANSI/ABMA and ISO standards based on the Lundberg-Palmgren bearing life theory are normalized for ball bearings having inner- and outer-race conformities of 52% (0.52) and made from pre-1940 bearing steel. The Lundberg-Palmgren theory incorporates an inverse 9th power relation between the Hertz stress and fatigue life for ball bearings. The effect of race conformity on the ball set life independent of the race life is not incorporated into the Lundberg-Palmgren theory. In addition, the post-1960 vacuum-processed bearing steel exhibits a 12th power relation between the Hertz stress and life. The work reported extends the previous work of Zaretsky, Poplawski, and Root to calculate the changes in bearing life—that includes the life of the ball set—caused by race conformity, the Hertz stress-life exponent, the ball bearing type, and the bearing series. The bearing fatigue life in actual application will usually be equal to or greater than that calculated using the ANSI/ABMA and ISO standards that incorporate ... |
| Starting Page | 150 |
| Ending Page | 159 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| DOI | 10.1080/10402000801926380 |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20080000851.pdf |
| Alternate Webpage(s) | https://doi.org/10.1080/10402000801926380 |
| Volume Number | 51 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
