Results 41 to 50 of about 38,665 (216)
Development of new materials for turbopump bearings [PDF]
The life requirement for the angular contact ball bearings in the Space Shuttle Main Engine (SSME) high pressure oxygen turbopump (HPOTP) is 7.5 hours. In actual operation, significantly shorter service life was experienced.
Maurer, R. E., Pallini, R. A.
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Incorporating general race and housing flexibility and deadband in rolling element bearing analysis [PDF]
Methods for including the effects of general race and housing compliance and outer race-to-housing deadband (clearance) in rolling element bearing mechanics analysis is presented.
Davis, R. R., Vallance, C. S.
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Motion of a Ball in the Angular-contact Ball Bearing
Transactions of the Japan Society of Mechanical Engineers, 1964 The behaviour of a ball in a ball bearing was observed through flux change caused by a magnetized ball. An angular-contact ball bearing of the type 7307 B was used in the experiment. Under pure thrust load, the ball makes a complicated three-dimensional motion.
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First order ball bearing kinematics [PDF]
Two first order equations are given connecting geometry and internal motions in an angular contact ball bearing. Total speed, kinematic equivalence, basic speed ratio, and modal speed ratio are defined and discussed; charts are given for the speed ratios
Kingbury, E.
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Investigation of ball vibrations in angular contact ball bearings
, 2020 In this study, a shaft-bearing model is developed in order to investigate ball vibrations in case of defected and undefected ball bearings. In this model, shaft-bearing couple is considered as a mass-spring system and balls are massless. It is well known that the behavior of the system has a nonlinear character under dynamic conditions.
Arslan, Hakan, Aktürk, Nizami
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Investigation of non-uniform preload effect on stiffness behavior of angular contact ball bearings
Advances in Mechanical Engineering, 2017 Preloading is an effective way to maintain good performance of angular contact ball bearings. Traditionally, the rigid and constant preload are applied by uniform approaches on the bearing system.
Wenwu Wu, Jun Hong, Yang Li, Xiaohu Li
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Rolling-element fatigue life of silicon nitride balls [PDF]
The five-ball fatigue tester was used to evaluate silicon nitride as a rolling-element bearing material. Results indicate that hot-pressed silicon nitride running against steel may be expected to yield fatigue lives comparable to or greater than those of
Parker, R. J., Zaretsky, E. V.
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Frictional Torque Characteristic of Angular Contact Ball Bearings
Journal of Mechanical Engineering, 2011 Based on the dynamics and thermodynamic analysis of angular contact ball bearings,the theoretical computational formulae of the friction torque of angular contact ball bearings are obtained with the law of energy conservation.The theoretical analysis and the experimental verification for the effects of the structural parameters,operation condition on ...
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PROGRESSIVE ASSEMBLY TECHNOLOGY OF RADIAL ANGULAR-CONTACT BALL BEARINGS WITH INNER-COOLED RACE
Advanced Engineering Research, 2012 The experimental data in the field of the radial angular-contact ball bearings are resulted. The cold assembly technology for the radial angular-contact ball bearings, in which the inner race cooling temperature is determined with its aftercontraction to
Albert V. Korolev +3 more
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Effect of speed and load on ultra-high-speed ball bearings [PDF]
A study was undertaken to determine the effects of speed and load on the operation of 120-mm bore angular-contact ball bearings at speeds to 25,000 rpm and thrust loads to 22,240 newtons (5000 lb). Bearing temperature and power consumption increased with
Bamberger, E. N. +2 more
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