Results 61 to 70 of about 38,665 (216)
Fatigue life of high-speed ball bearings with silicon nitride balls [PDF]
Hot-pressed silicon nitride was evaluated as a rolling-element bearing material. The five-ball fatigue tester was used to test 12.7-mm- diameter silicon nitride balls at maximum Hertz stresses ranging from 4.27 x 10 to the 9th power n/sq m to 6.21 x 10 ...
Parker, R. J., Zaretsky, E. V.
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Experimental rig for measuring lubricant film thickness in rolling bearings [PDF]
, 2014 Electrical capacitance has been applied in the past for measuring the lubricant film thickness in rolling element bearings. The main difficulty arises from the fact that the measured capacitance is a combination of the capacitances of many rolling ...
Glovnea, Romeo +2 more
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Interference-Fit Life Factors for Ball Bearings [PDF]
The effect of hoop stresses on the rolling-element fatigue life of angular-contact and deep-groove ball bearings was determined for common inner-ring interference fits at the ABEC-5 tolerance level.
Oswald, Fred B. +2 more
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Estimation of bearing contact angle in-situ by X-ray kinematography [PDF]
, 1982 The mounted, preloaded contact angle of the structural bearings in the assembled design mechanical assembly was measured. A modification of the Turns method is presented, based upon the clarity and definition of moving parts achieved with X-ray technique
Fowler, P. H., Manders, F.
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Journal of Low Frequency Noise, Vibration and Active ControlA nonlinear dynamic model of angular contact ball bearing under combined external loads is established based on the nonlinear elastic Hertz contact theory and raceless control theory.
Zhen Li +3 more
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Bearing endurance tests in vacuum for sputtered molybdenum disulfide films [PDF]
Angular-contact, 440C stainless steel, ball bearings with sputtered MoS2 films 0.0000006 x 10-7m (6000 A) thick were evaluated in a vacuum bearing chamber (1750 rpm, 137.9-N- (31-lbf-) thrust load) for endurance.
Spalvins, T.
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Analysis of the Ball Load in Angular Contact Ball Bearings during Operations.
Journal of the Japan Society for Precision Engineering, 2001 Spindles used in machine tools, especially machining centers, must operate at high speeds with high stiffness and low temperature rise in order to achieve improvements in productivity and accuracy of the machine. Usually, preloaded angular contact ball bearings are used to satisfy these requirements.
Kenji FUJII +2 more
openaire +2 more sources
Jixie chuandong, 2023 Considering misalignment angles will appear during the actual installation of angular contact ball bearings and truncated contact ellipse will be produced due to bearing excessive external load, a bearing limit bearing capacity analysis model containing ...
Wang Huijie +4 more
doaj
Effect of cage design on characteristics of high-speed-jet-lubricated 35-millimeter-bore ball bearing [PDF]
Parametric tests were conducted with a 35 mm bore angular contact ball bearing with a double outer land guided cage. Provisions were made for jet lubrication and outer-ring cooling of the bearing.
Pinel, S. I. +2 more
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Design aspects of a solar array drive for spot, with a high platform stability objective [PDF]
, 1981 A solar array drive mechanism (MEGS) for the SPOT platform, which is a prototype of a multimission platform, is described. High-resolution cameras and other optical instruments are carried by the platform, requiring excellent platform stability in order ...
Anstett, P. +4 more
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