Download or read book Effect of Lubricant Extreme pressure Additives on Rolling element Fatigue Life written by Richard Jay Parker and published by . This book was released on 1973 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of surface active additives on rolling-element fatigue life were investigated with the five-ball fatigue tester at conditions where classical subsurface initiated rolling-element fatigue is the sole mode of failure. Test balls of AISI 52100, AISI M-50, and AISI 1018 were run with an acid-treated white oil containing either 2.5 percent sulfurized terpene, 1 percent didodecyl phosphite, or 5 percent chlorinated wax. In general, it was found that the influence of surface active additives was detrimental to rolling-element fatigue life. The chlorinated-wax additive significantly reduced fatigue life by a factor of 7. The base oil with the 2.5 percent sulfurized-terpene additive can reduce fatigue life by as much as 50 percent. No statistical change in fatigue life occurred with the base oil having the 1 percent didodecyl-phosphite additive. The additives used with the base oil did not change the ranking of the bearing steels where rolling-element fatigue life was of subsurface origin.

Download or read book Effect of Lubricant Extreme pressure Additives on Surface Fatigue Life of AISI 9310 Spur Gears written by Herbert W. Scibbe and published by . This book was released on 1984 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Lubricant Extreme pressure Additives on Rolling element Fatique Life written by Richard J. Parker and published by . This book was released on 1973 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reduced pressure Environment Effects on Rolling element Fatigue Life with Super refined Mineral Oil Lubricant written by David W. Reichard and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Nine Lubricants on Rolling contact Fatigue Life written by Erwin V. Zaretsky and published by . This book was released on 1962 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Note written by and published by . This book was released on 1976 with total page 880 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lubricant Additive Effects Upon Bearing Metal Fatigue I Rolling Contact Adaptation for Four Ball Ep Tester written by Max T. Fisher and published by . This book was released on 1966 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rolling contact adaptation of the Four Ball Extreme Pressure Tester was devised and evaluated for its utility in determining the effects of additives in oils on the fatigue life of 52100 steel balls. Six compounds, similar in molecular size to common additives but selected for different configurations and functional groups, were combined with low viscosity (80 SUS at 100F.) paraffinic and naphthenic oils in five percent concentrations. Their effects upon fatigue, compared with that of the oils alone, were determined. Molybdenum disulfide was also evaluated in the same manner. Based on fewer tests than statistically desirable, the '10% life' taken from Weibull distribution plots of the results indicate that different additives and lubricant bases have varying effects upon the fatigue life of bearings. It appears that reasonably fast, economical and reliable ball bearing fatigue life results can be expected with this relatively inexpensive rolling contact adaptation of the widely used Four Ball EP Tester. (Author).

Download or read book Rolling Contact Fatigue Testing of Bearing Steels written by J. J. C. Hoo and published by ASTM International. This book was released on 1982 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA Technical Paper written by and published by . This book was released on 1985 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Viscosity on Rolling element Fatigue Life at Cryogenic Temperature with Fluorinated Ether Lubricants written by Marshall W. Dietrich and published by . This book was released on 1975 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rolling-element fatigue tests were conducted with 12.7-mm-(1/2-in.-) diameter AISI 52100 steel balls in the NASA five-ball fatigue tester, with a maximum hertz stress of 5500 mN/m2 (800 000 psi), a shaft speed of 4750 rpm, lubricant temperature of 200 K (360 R), a contact angle of 20 deg, using four fluorinated ether lubricants of varying viscosities. No statistically significant differences in rolling-element fatigue life occurred using the four viscosity levels. Elastohydrodynamic calculations indicate that values of the lubricant film parameter were approximately 2 or greater.

Download or read book Rolling element Fatigue Life with Traction Fluids and Automatic Transmission Fluid in a High speed Rolling contact Rig written by Richard Jay Parker and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rolling element Fatigue Life with Traction Fluids and Automatic Transmission Fluid in a High speed Rolling contact Rig written by Richard Jay Parker and published by . This book was released on 1982 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rolling element fatigue life with two synthetic cycloaliphatic traction fluids written by Stuart H. Loewenthal and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reduced pressure Environment Effects on Rolling element Fatigue Life with Super refined Mineral Oil Lubricant written by David W. Reichard and published by . This book was released on 1968 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frontiers of Tribology written by Roberts and published by CRC Press. This book was released on 1992-01-01 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics addressed at the April 1991 conference held in Stratford-upon- Avon, UK, and sponsored by the Tribology Group of the Institute of Physics (UK), include adhesion, boundary lubrication, friction, fluid film lubrication, surface analysis, lubricant additives, and other physical aspects, with particular focus on underlying mechanisms. No index. Annotation copyrighted by Book News, Inc., Portland, OR

Download or read book Effect of Contact Angle on Rolling element Fatigue Life with a Fluorinated Ether Lubricant at a Cryogenic Temperature of 170 K 305 R written by Marshall W. Dietrich and published by . This book was released on 1971 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1985 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt: