Academic literature on the topic 'Ball Bearings'

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Journal articles on the topic "Ball Bearings"

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Cross, Rod. "Ball bearings and bearing balls." American Journal of Physics 89, no. 1 (2021): 10. http://dx.doi.org/10.1119/10.0002859.

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Zhou, Hui, Jun Zheng, Ji Xing Hu, Rui Peng Sang, and Zhi Hua Wan. "Study of MoS2-Ti Composite Coatings Applied in Precision Ball Bearings." Advanced Materials Research 538-541 (June 2012): 281–85. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.281.

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708C Ball bearings were made of 9Cr18 steel which had precision of class 4, MoS2-Ti composite coatings were deposited on inner and outer races of ball bearings by unbalanced magnetron sputtering system, and bearing cages were made of PTFE-based self-lubricating polymers. Bearing’s tribological torques as a function of storage time in high humidity environment were studied by using LHU-2 thermal & humidity test chamber and Bearing 2000 torque measurement device. Developing bearing vacuum performance test rig to research bearing’s torque as a function of running time, bearings were dismantle
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Zhao, Yanling, Gang Zhou, and Qiyu Wang. "Discrete Dynamics of Balls in Cageless Ball Bearings." Symmetry 14, no. 11 (2022): 2242. http://dx.doi.org/10.3390/sym14112242.

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Cageless ball bearings are often preferred as a back-up bearing for active magnetic bearings to support a falling rotor, but the contact between the balls of the cageless ball bearing may lead to the deterioration of the bearing performance and affect the dynamic stability of the rotor system. Thus, we studied the discrete dynamics of cageless ball bearings. First, a model is proposed to change the groove curvature center of the local outer raceway to control the ball velocity to achieve dispersion. Combined with the spatial geometry theory, the mathematical model of the discrete raceway is es
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Иванов, Яков Николаевич, Олег Петрович Бадун, Сергей Алексеевич Дешевых та Александр Юрьевич Стрельченко. "ПАРАМЕТРИЧНІ КОЛИВАННЯ РОТОРУ ТУРБОНАСОСНОГО АГРЕГАТУ НА ШАРИКОПІДШИПНИКАХ". Aerospace technic and technology, № 7 (10 листопада 2018): 56–61. http://dx.doi.org/10.32620/aktt.2018.7.08.

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This work is dedicated to the problem of ball bearings capacity on the turbopump assembly rotor. Many publications and books have been devoted to solve this problem. The result of research is benefit for designers, technologists and operatives. However, many important questions, which are concerning of ball bearings work, in engineering practice are not sufficiently disclosed. In favor of this is telling the statistic of development of high-speed rotor assemblies. In the total mass of turbopump assembly defects, which appear at the phase of developmental design, more the half of them are belon
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Aktu¨rk, N., M. Uneeb, and R. Gohar. "The Effects of Number of Balls and Preload on Vibrations Associated With Ball Bearings." Journal of Tribology 119, no. 4 (1997): 747–53. http://dx.doi.org/10.1115/1.2833880.

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In this paper, the radial and axial vibrations of a rigid shaft supported by a pair of angular contact ball bearings are studied. The effect on the shaft vibration of varying the preload and the number of balls in the bearings is investigated when the bearings are perfect. For perfect bearings the vibrations occur at the ball passage frequency. The amplitudes of these vibrations are shown to be considerably reduced if the preload and number of balls are correctly selected. All results show that the vibration characteristics of the shaft and its bearings change when the bearings operate in diff
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Berrada, S., R. Serra, P. V. Dalen, and C. Chastagner. "Impact of low inner ring waviness orders on hybrid ball bearing under high speeds." Proceedings of the International Conference on Condition Monitoring and Asset Management 2023, no. 1 (2023): 1–10. http://dx.doi.org/10.1784/cm2023.2f3.

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Deep groove ball bearings (DGBB) are widely used in rotating equipment in many fields among which we have electric vehicle Powerpack, so very demanding in terms of noise and vibration. Geometrical design, clearance, component material, and lubricant properties influence vibratory behavior and bearing life cycle. In rotating machines, bearings are acting as friction reducers to allow a smooth rotation but are also exciters inducing vibrations due to the rotation of ball set, even in the case of a theoretical perfect bearing. Bearing performance depends highly on contact surface quality (ring ra
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Ohta, Hiroyuki, and Shinya Satake. "Vibrations of the All-Ceramic Ball Bearing." Journal of Tribology 124, no. 3 (2002): 448–60. http://dx.doi.org/10.1115/1.1456455.

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All-ceramic ball bearings with silicone nitride balls and silicone nitride rings were tested and the vibration characteristics were compared with those of hybrid ceramic ball bearings and conventional steel ball bearings. The vibration measurement results showed that the overall vibratory velocity levels of the all-ceramic ball bearings are influenced by rotational velocities, and do not change with axial loads. Under a given axial load and rotational velocity, the overall vibratory velocity level of the all-ceramic ball bearing is the lowest, and the hybrid ball bearing the highest. The frequ
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Ohta, Hiroyuki, and Takumi Nakagawa. "Using Ceramic Balls to Reduce Noise in a Linear Guideway Type Recirculating Linear Ball Bearing." Journal of Tribology 125, no. 3 (2003): 480–86. http://dx.doi.org/10.1115/1.1537264.

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A new method of reducing the noise of the linear guideway type recirculating linear ball bearing (linear bearing) was studied. In the experiments, the overall sound pressure levels of linear bearings with steel balls or ceramic Si3N4 balls were measured, and sound frequency analyses were carried out. Moreover, based on the assumption that the main cause of the noise may be the collision between the ball and the carriage, the overall sound pressure levels of the linear bearings were analyzed combining the Hertzian theory and the results of previous studies on collision sound. From the results o
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Zhao, Yang, Heng Liu, and Bowen Fan. "Traction effects on the dynamics of ball bearings." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 235, no. 4 (2021): 641–52. http://dx.doi.org/10.1177/14644193211047385.

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In the paper, a combined model of traction and ball bearings dynamics is established, considering the interaction among the cage, races, and balls. A curve-fitted traction model, which can be used to analyze the effect of the geometry of the bearing and parameters of the lubricant, is applied. The traction that is affected by certain parameters is analyzed; then, the effect of the traction on ball bearings is investigated. The displacements of balls and contact angles are different under different surface roughness. The changes in displacements of balls and contact angles are obtained with dif
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Zhang, Ke, Xianchao Wu, Xiaotian Bai, Zinan Wang, Defang Zou, and Jie Sun. "Effect of the Lubrication Parameters on the Ceramic Ball Bearing Vibration in Starved Conditions." Applied Sciences 10, no. 4 (2020): 1237. http://dx.doi.org/10.3390/app10041237.

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The thickness of the oil film in ceramic ball bearings varies greatly at starved lubrication conditions, thus leading to non-uniform contact between the balls and raceways in the circumference. The lubrication parameters have a direct impact on the thickness of the oil film and then affect the dynamic characteristics of the ceramic ball bearings. A nonlinear dynamic model of ceramic ball bearing with limited lubrication is presented in this paper, and parametric studies on the effect of lubrication parameters are conducted. In starved conditions, the uneven contact between the ball and ring le
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Dissertations / Theses on the topic "Ball Bearings"

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El-Tayeb, Nabil Said Mohamed. "The dynamic properties of ball bearings." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366386.

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Holland, Michael L. "Assembly Optimization for Double Row Ball Bearings." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/37009.

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This thesis is a treatise on optimal assembly methods for double row ball bearings. As with common single row bearings, double row ball bearings, consist of four general components, namely, an inner ring, an outer ring, a complement of balls and a cage or retainer to keep the balls separate. Unlike single row bearings, however, double row ball bearings have two complements of balls in two distinct parallel races. Although this double row configuration is desirable in a number of applications, it makes the bearings more difficult and expensive to assemble. In addition, current manual assemb
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Ribadeneira, M. Xavier. "Ball bearing diagnostics with multiple sensors." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18963.

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Levesque, George. "Critical flaw size in silicon nitride ball bearings." [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0041089.

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Shakya, Piyush. "Data fusion based diagnosis and prognosis of ball bearings." Thesis, IIT Delhi, 2015. http://eprint.iitd.ac.in:80//handle/2074/8174.

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Sandström, Tobias. "Condition Monitoring of Ceramic Ball Bearings in an Engine Testing Dynamometer." Thesis, KTH, Maskinkonstruktion (Inst.), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-183126.

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The choice of the topic addressed in this thesis aims to improve the service and maintenance on ceramic ball bearings in a specific test dynamometer and through an engineering approach develop tools for condition monitoring. The company connected to this thesis, AVL, is the world's largest privately owned company for development, simulation and testing technology of powertrains for passenger cars, trucks and large engines. Engine testing is a critical part of the business at AVL Sweden and unexpected bearing failure can result in long repair times and great economic losses due to loss of the t
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Gunduz, Aydin. "Multi-Dimensional Stiffness Characteristics of Double Row Angular Contact Ball Bearings and Their Role in Influencing Vibration Modes." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1326397623.

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Akturk, Nizami. "Dynamics of a rigid shaft supported by angular contact ball bearings." Thesis, Imperial College London, 1993. http://hdl.handle.net/10044/1/7359.

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Khanam, Sidra. "Vibration analysis and feature extraction of ball bearings with local defect." Thesis, IIT Delhi, 2016. http://localhost:8080/xmlui/handle/12345678/7033.

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Pinckney, Francis Douglas. "Air-oil mist lubrication of small bore ball bearings at high speeds." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/104537.

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Books on the topic "Ball Bearings"

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Society of Tribologists and Lubrication Engineers. Technical Committee on Bearings and Bearing Lubrication. Interpreting service damage in rolling type bearings: A manual on ball & roller bearing damage. American Society of Tribologists and Lubrication Engineers, 1993.

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Eschmann, P. Ball and roller bearings: Theory, design, and application. 2nd ed. Oldenbourg, 1985.

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Changsen, Wan. Analysis of rolling element bearings. Mechanical Engineering Publications, 1991.

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Albert, M. Wälzlager: Theorie und Praxis. Springer-Verlag, 1987.

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M, Barnsby Roger, and American Society of Mechanical Engineers. Tribology Division. Technical Committee., eds. Life ratings for modern rolling bearings: A design guide for the application of international standard ISO 281/2. ASME International, 2003.

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V, Zaretsky Erwin, and Society of Tribologists and Lubrication Engineers., eds. STLE life factors for rolling bearings. Society of Tribologists and Lubrication Engineers, 1992.

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United States International Trade Commission. Antifriction bearings (other than tapered roller bearings) and parts thereof from the Federal Republic of Germany, France, Italy, Japan, Romania, Singapore, Sweden, Thailand, and the United Kingdom: Determinations of the Commission in investigations nos. 303-TA-19 and 20 (final) under the Tariff Act of 1930, together with the information obtained in the investigations : determinations of the Commission in investigations nos. 731-TA-391-399 (final) under the Tariff Act of 1930, together with the information obtained in the investigations. U.S. International Trade Commission, 1989.

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Koshelʹ, V. M. Podshipniki kachenii͡a︡. "Navuka i tėkhnika", 1993.

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V, Chernevskiĭ L., and Naryshkin V. N, eds. Issledovanie dolgovechnosti i momentov trenii͡a︡ podshipnikov kachenii͡a︡. Nauchno-proizvodstvennoe obʺedinenie podshipnikovoĭ promyshl., 1990.

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United States International Trade Commission. Antifriction bearings (other than tapered roller bearings) and parts thereof from the Federal Republic of Germany, France, Italy, Japan, Romania, Singapore, Sweden, Thailand, and the United Kingdom: Determinations of the Commission in investigations nos. 303-TA-19 and 20 (final) under the Tariff Act of 1930, together with the information obtained in the investigations : determinations of the Commission in investigations nos. 731-TA-391-399 (final) under the Tariff Act of 1930, together with the information obtained in the investigations. U.S. International Trade Commission, 1989.

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Book chapters on the topic "Ball Bearings"

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Sachs, Neville W. "Ball and Roller Bearings." In Practical Plant Failure Analysis. CRC Press, 2019. http://dx.doi.org/10.1201/9780429451041-10.

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Takeuchi, Yoshimi R., Sean E. Davis, and Matthew A. Eby. "Steel and Hybrid Spacecraft Ball-Bearing Thermal Conductance Comparisons." In Rolling Element Bearings. ASTM International, 2012. http://dx.doi.org/10.1520/stp104234.

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Takeuchi, Yoshimi R., Sean E. Davis, and Matthew A. Eby. "Steel and Hybrid Spacecraft Ball-Bearing Thermal Conductance Comparisons." In Rolling Element Bearings. ASTM International, 2012. http://dx.doi.org/10.1520/stp104234t.

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Leveille, Alan, Peter Frantz, and Garry Rosene. "A Model to Estimate Separator Forces during Ball Speed Variations." In Rolling Element Bearings. ASTM International, 2012. http://dx.doi.org/10.1520/stp104209.

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Brecher, C., and G. Gerlach. "Performance of DLC-coated Spindle Ball Bearings." In Friction, Wear and Wear Protection. Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527628513.ch72.

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Henequim, Clayton, Ricardo Kondo, Eduardo de Freitas Rocha Loures, and Gilberto Reynoso-Meza. "Multi-objective Fault Detection in Ball Bearings." In Proceedings of the 11th International Conference on Production Research – Americas. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-36121-0_54.

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Farhat, Mohamed Habib, Xavier Chiementin, Fakher Chaari, Taissir Hentati, and Mohamed Haddar. "Rotor-Ball Bearings System Under Variable Regime." In Applied Condition Monitoring. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-76517-0_3.

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Vegter, R. H., T. Buslaps, Y. Kadin, and H. A. Verschoor. "Measurement of Residual Stresses in Ball Bearings by Synchrotron Radiation." In Bearing Steel Technologies: 10th Volume, Advances in Steel Technologies for Rolling Bearings. ASTM International, 2014. http://dx.doi.org/10.1520/stp158020140041.

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Stautner, Ernst Wolfgang, Kiruba S. Haran, Phillip J. Ansell, and Constantinos Minas. "Rotating Vacuum Heat Transfer, Rotating Cryocoolers, Slip Rings, Rotating Bearings, Ball Bearings." In International Cryogenics Monograph Series. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-71408-5_10.

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Bizarre, Letícia, Fábio Nonato de Paula, and Katia L. Cavalca. "EHD Modeling of Angular Contact Ball Element Bearings." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_143.

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Conference papers on the topic "Ball Bearings"

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Allison, Bryan, Mark Kozachyn, Tom Lunz, and Kyle Monaghan. "Ceramic Rolling Element Damage Sensitivity and Gearbox System Response." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12154.

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The rotorcraft industry is constantly pushing for higher temperatures, speeds, and loads, while simultaneously minimizing weight. Hybrid bearings (steel rings with ceramic rolling elements) offer improved performance over all-steel bearings plus significant weight savings. However, there are still concerns about using them within the aerospace industry. Two of the main concerns regarding hybrid bearings are that any manufacturing defects may lead to premature failure and that failures may be catastrophic in nature. In this manuscript, recent research performed on the sensitivity of hybrid bear
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Lin, Bo, Molong Duan, Chinedum E. Okwudire, and Jason S. Wou. "An Improved Analytical Model of Friction and Ball Motion in Linear Ball Bearings With Application to Ball-to-Ball Contact Prediction." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88033.

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The friction behavior of rolling ball machine components like linear ball bearings is very important to their functionality. For instance, differences in linear velocity of balls induces ball-to-ball contact in certain circumstances, resulting in significant increases and variations in friction. In this paper, an improved analytical formula for determining the linear velocity of balls in four-point-contact linear ball bearings is derived as a function of contact angle deviations and contact forces. The analytical formula is validated against a comprehensive friction model in the literature and
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Pandey, Ashutosh, Mingyuan Tao, Yuchuan Liu, Ran Wu, Anand Shandilya, and Chengjie Wang. "Multiphase Flow in Roller/Ball Bearings." In WCX SAE World Congress Experience. SAE International, 2024. http://dx.doi.org/10.4271/2024-01-2437.

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<div class="section abstract"><div class="htmlview paragraph">Churning loss is an important energy loss term for rolling bearings at high-speed condition. However, it is quite challenging to accurately calculate the churning loss. A CFD study based on unsteady Reynolds-Averaged-Navier-Stokes that resolves the gas-liquid interface was performed to examine the unsteady multiphase flow in a roller/ball bearing. In this study, the rotating motion of the cage, races, rollers/balls about the shaft as well as self-rotation of rollers/balls about their own axis were accounted to accurately
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Ghafari, Shahab H., Eihab M. Abdel-Rahman, Farid Golnaraghi, and Fathy Ismail. "Chaos in Healthy Ball Bearings." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-43076.

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This paper explores the effect of internal clearance on vibration characteristics of ball bearings. It is found that a fault-free bearing exhibits periodic vibration within a small range of internal clearance. However for larger values of internal clearance and large amplitude excitations, fault-free bearings exhibit chaotic behavior.
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Miner, J. R., J. Dell, A. T. Galbato, and M. A. Ragen. "F117–PW–100 Hybrid Ball Bearing Ceramic Technology Insertion." In ASME 1995 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/95-gt-390.

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Results of an Advanced Research Projects Agency (ARPA) sponsored project to demonstrate the operational benefits of incorporating advanced structural ceramic ball elements into the F117–PW–100 aircraft gas turbine engine high rotor thrust bearings is described. This program consists of design, fabrication and experimental evaluation of candidate hybrid ball bearing designs in Pratt & Whitney and MRC Bearings test facilities. The bearing design criteria and development test conditions utilized for the project are compatible with the requirements of the F117–PW–100 engine system application.
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Itoigawa, F., T. Nakamura, and K. Funabashi. "Bearing Vibration and Oil Film Thickness in Relation to Sphericity of Bearing Steel Balls." In ASME 1992 Design Technical Conferences. American Society of Mechanical Engineers, 1992. http://dx.doi.org/10.1115/detc1992-0078.

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Abstract The relationship between the bearing vibration and the sphericity of the steel balls used for ball bearings is experimentally investigated in consideration of the oil film in between the steel balls and raceways. The experiments are carried out on angular contact ball bearings (7208C and 7010C) under only thrust load. First, it is confirmed that the oil film thickness, which is measured on this bearing, virtually agrees with the value calculated by EHL theory. And even if there exists a considerably large error in the ball shape, it does not always necessarily rupture the oil film if
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Damian, Ioan, Ion Oancea, and Spiridon Cretu. "The Effect of Misalignment on Power Loss in Ball Bearings." In ASME 2008 9th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2008. http://dx.doi.org/10.1115/esda2008-59113.

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A vectorial method has been developed to solve the quasi-static equilibrium in angular contact ball bearings. In the quai-static model the effects induced by the centrifugal forces, gyroscopic moments and misalignments between bearing’s rings were considered. The lubricant parameters, traction forces and fluid drag action on balls and raceways were further included in a quasi-dynamic model. An experimental study has been further carried out to validate the quasi-dynamic model when a certain degree of misalignment exists between the inner and outer rings of the bearing. Both numerical simulatio
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Kosco, John C. "P/M Bearings With Ball Bearing Like Properties." In SAE 2004 World Congress & Exhibition. SAE International, 2004. http://dx.doi.org/10.4271/2004-01-0495.

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Chikazawa, Yoshitaka, Shinichi Usui, Mamoru Konomura, et al. "Development of a Slim Manipulator Type Fuel Handling Machine for a Commercialized Fast Reactor." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89266.

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A seismic analysis has been performed showing that the seismic interaction between the UIS and the FHM can be avoided eliminating the internal clearance of bearing at the FHM arm joint. An angular contact ball bearing is suitable for the new FHM since it can eliminate gaps by preload pressure. A major problem of the FHM bearings is lubrication since the contact pressure between the steel rings and ball of the ball bearing is larger than that of the roller bearing used in the previous design. Additionally, FHM operating temperature is about 200deg-C and normal grease is not applicable under arg
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Zhang, Zhiyong, Xiaoting Rui, Yushu Chen, Wenkai Dong, and Lei Li. "Hysteretic Resonances and Intermittency Chaos in Ball Bearings." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-86411.

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Ball bearings are essential parts of mechanical systems to support the rotors or constitute the revolute joints. The time-varying compliance (VC), bearing clearance and the Hertzian contact between the rolling elements and raceways are three fundamental nonlinear factors in a ball bearing, hence the ball bearing can be considered as a nonlinear system. The hysteresis and jumps induced by the nonlinearities of rolling bearings are typical phenomena of nonlinear vibrations in the rolling bearing-rotor systems. And the corresponding hysteretic impacts have direct effects on the cleavage derivativ
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Reports on the topic "Ball Bearings"

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Gass, Robert F. Theory, Doctrine, and Ball Bearings: Adapting Future Technology to Warfare. Defense Technical Information Center, 1996. http://dx.doi.org/10.21236/ada324294.

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Williams, J. M., and J. Miner. Performance improvement of silicon nitride ball bearings by ion implantation. CRADA final report. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/597640.

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Lykins, Chris, and Lewis Rosado. Angular-Contact Ball Bearing Optimization Study. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada306270.

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Tom, Kwok F. A Primer on Vibrational Ball Bearing Feature Generation for Prognostics and Diagnostics Algorithms. Defense Technical Information Center, 2015. http://dx.doi.org/10.21236/ada614145.

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Bertrand, P. A. Friction at the Contact Between Bearing Balls and Cotton-Phenolic Cage Material. Defense Technical Information Center, 2004. http://dx.doi.org/10.21236/ada423792.

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Health hazard evaluation report: HETA-91-251-2218, New Hampshire Ball Bearing, Laconia, New Hampshire. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, 1992. http://dx.doi.org/10.26616/nioshheta912512218.

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Health hazard evaluation report: HETA-95-0207-2592, New Hampshire Ball Bearing, Astro Division, Laconia, New Hampshire. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1996. http://dx.doi.org/10.26616/nioshheta9502072592.

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