| LDR | 01930nam a2200289Ia 4500 | ||
| 001 | 011446184 | ||
| 003 | MiAaHDL | ||
| 005 | 20141009010000.0 | ||
| 006 | m d | ||
| 007 | cr bn ---auaua | ||
| 008 | 101111s1972 dcua b f000 0 eng d | ||
| 035 | ⊔ | ⊔ | ‡asdr-uiuc6405132 |
| 035 | ⊔ | ⊔ | ‡a(OCoLC)680492922 |
| 040 | ⊔ | ⊔ | ‡aUIU ‡cUIU |
| 049 | ⊔ | ⊔ | ‡aUIUU |
| 100 | 1 | ⊔ | ‡aParker, Richard J. ‡q(Richard Jay), ‡d1937- |
| 245 | 1 | 0 | ‡aReevaluation of the stress-life relation in rolling-element bearings ‡cRichard J. Parker and Erwin V. Zaretsky. |
| 246 | 3 | ⊔ | ‡aNASA TN D-6745 |
| 260 | ⊔ | ⊔ | ‡aWashington, D.C. : ‡bNational Aeronautics and Space Administration : ‡b[For sale by the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151], ‡c1972. |
| 300 | ⊔ | ⊔ | ‡a16 p. : ‡bill. ; ‡c27 cm. |
| 490 | ⊔ | 0 | ‡aNASA technical note ; ‡vD-6745 |
| 504 | ⊔ | ⊔ | ‡aIncludes bibliographical references (p. 15-16). |
| 520 | ⊔ | ⊔ | ‡aFour groups of 12.7 millimeter diameter vacuum-degassed AISI 52100 balls were tested, each at a maximum Hertz stress in the range of 4.5 times 10 to 9th power to 6.0 times 10 to 9th power N/m2. Tests were run in the five-ball fatigue tester at a contact angle of 30 deg and a shaft speed of 10,000 rpm. The 10 percent fatigue lives at the four stress levels indicated that fatigue life is inversely proportional to maximum Hertz stress raised to the power of 12. This result agrees with a survey of the literature which suggests that a stress-life exponent of approximately 12 is typical of vacuum-processed bearing steels rather than the exponent of 9 which has been generally accepted by the bearing industry. |
| 538 | ⊔ | ⊔ | ‡aMode of access: Internet. |
| 650 | ⊔ | 0 | ‡aRoller bearings. |
| 650 | ⊔ | 0 | ‡aBearings (Machinery) |
| 700 | 1 | ⊔ | ‡aZaretsky, Erwin V. |
| 710 | 2 | ⊔ | ‡aLewis Research Center. |
| 710 | 1 | ⊔ | ‡aUnited States. ‡bNational Aeronautics and Space Administration. |
| CID | ⊔ | ⊔ | ‡a011446184 |
| DAT | 0 | ⊔ | ‡a20101111092922.0 ‡b20141009010000.0 |
| DAT | 1 | ⊔ | ‡a20141112165512.0 ‡b2024-01-26T18:55:00Z |
| CAT | ⊔ | ⊔ | ‡aSDR-UIUC ‡dUNKNOWN ‡lloader.pl-003-020 |
| FMT | ⊔ | ⊔ | ‡aBK |
| HOL | ⊔ | ⊔ | ‡0sdr-uiuc6405132 ‡auiug ‡bSDR ‡cUIUC ‡puiug.30112106884346 ‡sUIU ‡16405132 |
| 974 | ⊔ | ⊔ | ‡bUIU ‡cUIUC ‡d20240126 ‡sgoogle ‡uuiug.30112106884346 ‡y1972 ‡rpd ‡qbib ‡tUS fed doc |