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Journal articles on the topic 'Ball Bearings'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Paleu, Viorel, Ioan Damian, and Cristel Stirbu. "Friction Torque Measurement in Partial Hybrid S-C Angular Contact Ball Bearings." Applied Mechanics and Materials 658 (October 2014): 339–44. http://dx.doi.org/10.4028/www.scientific.net/amm.658.339.

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To monitor the friction torque evolution in tandems of angular contact ball bearings, a new testing device is developed. New partial hybrid bearings from 7206C series are obtained by combining 8 steel balls with 4 silicon nitride balls of the same diameter equally spaced in the cage, these bearings being denoted hereafter as 8S-4C type. For comparison, tests are carried-out also on conventional all-steel bearings and hybrid bearings with all the steel balls replaced by silicon nitride balls. The equilibrium temperature of the all-steel, hybrid and 8S-4C ball bearings is determined by tests. At

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12

Kanai, H., M. Abe, and K. Kido. "Estimation of the Surface Roughness on the Race or Balls of Ball Bearings by Vibration Analysis." Journal of Vibration and Acoustics 109, no. 1 (1987): 60–68. http://dx.doi.org/10.1115/1.3269396.

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This paper describes a vibration-based diagnostic method by estimating the surface roughness on the rotating ring or balls in ball bearings. The surface roughness has been measured by a stylus that directly traverses the surface of the ring or balls obtained by taking apart the ball bearing. We developed a new method to estimate accurately the surface roughness by analyzing the short-length vibration signal that is excited when balls encounter flaws on the rotating ring or when races encounter flaws on the balls in a ball bearing. Our experimental results confirm that the roughness estimated b

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13

Aktärk, N., and R. Gohar. "The effect of ball size variation on vibrations associated with ball-bearings." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 212, no. 2 (1998): 101–10. http://dx.doi.org/10.1243/1350650981541921.

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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 is studied. The effect of ball size variation in the bearings on the vibration of the shaft is investigated. A computer program was developed to simulate this effect, with the results presented in time and frequency domains. All results show that off-sized balls in the bearing cause vibrations at cage speed and its harmonics, depending on their arrangement within the bearing. Symmetric combinations will produce vibrations at the multiples of the cage speed and all other combinati

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14

Miner, J. R., J. Dell, A. T. Galbato, and M. A. Ragen. "F117-PW-100 Hybrid Ball Bearing Ceramic Technology Insertion." Journal of Engineering for Gas Turbines and Power 118, no. 2 (1996): 434–42. http://dx.doi.org/10.1115/1.2816608.

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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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15

Cui, Li. "A new fatigue damage accumulation rating life model of ball bearings under vibration load." Industrial Lubrication and Tribology 72, no. 10 (2020): 1205–15. http://dx.doi.org/10.1108/ilt-05-2019-0180.

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Purpose Bearings in electric machines often work in high speed, light load and vibration load conditions. The purpose of this paper is to find a new fatigue damage accumulation rating life model of ball bearings, which is expected for calculating fatigue life of ball bearings more accurately under vibration load, especially in high speed and light load conditions. Design/methodology/approach A new fatigue damage accumulation rating life model of ball bearings considering time-varying vibration load is proposed. Vibration equations of rotor-bearing system are constructed and solved by Runge–Kut

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16

Ziebell, Arne, Oskar Schöppl, Roland Haubner, and Thomas Konegger. "Identification of Bearing Defects in Hybrid Thrust Ball Bearings by Vibration Analysis." Materials Science Forum 825-826 (July 2015): 844–51. http://dx.doi.org/10.4028/www.scientific.net/msf.825-826.844.

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Hybrid ball bearings, consisting of metallic washers in combination with ceramic bearing balls, feature a variety of significant advantages in comparison to standard steel bearings, including mechanical properties and reduced friction during operation. Key aspects for a successful operation are a prevention of defects of both balls and washers, as well as the knowledge of critical and optimal operation parameters. This relevant information can be obtained through test rig trials, where vibration analysis has found to be a versatile and efficient tool for the characterization of the operational

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17

Sun, Jian, Xin Fang, Jinmei Yao, Renyun Guan, Zhe Zhang, and Guangxiang Zhang. "Study on the Effect of Oil Supply on the Sound Field Characteristics of Full Ceramic Ball Bearings under Oil Lubrication." Lubricants 11, no. 3 (2023): 146. http://dx.doi.org/10.3390/lubricants11030146.

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To study the full sound field distribution characteristics of full ceramic ball bearings, reduce the radiation noise of the bearings, and improve their service performance. In this paper, the sound field distribution characteristics of 6206 silicon nitride ceramic deep groove ball bearings are studied under different oil supplies. A mathematical model of the sound field distribution of full ceramic ball bearings under oil lubrication is established, and the validity of the model is verified by experimental data. The bearing cavity simulation model of the full ceramic ball bearing is establishe

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18

Luo, Haitao, Jia Fu, Changshuai Yu, Guangming Liu, Wei Wang, and Peng Wang. "Numerical simulation and experimental testing of dynamic stiffness of angular contact ball bearing." Advances in Mechanical Engineering 10, no. 9 (2018): 168781401879897. http://dx.doi.org/10.1177/1687814018798973.

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Angular contact ball bearings are widely used in the multiple rotor system, such as gear box, machine tool spindle, and aero-engine rotors. The support stiffness is very important to the vibration of shafting. In order to obtain the dynamic stiffness, a numerical simulation method for dynamic stiffness of angular contact ball bearings is presented. By means of LS-DYNA software, the displacement and stress curves of the bearing’s different components are obtained successfully, and then, the dynamic stiffness of bearing under certain working conditions also can be calculated. The maximum envelop

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19

Eckel, Hans-Martin, Christian Brecher, and Stephan Neus. "Kugelbewegung in Spindellagern unter dynamischer Belastung." Tribologie und Schmierungstechnik 69, eOnly Sonderausgabe 2 (2022): 10–16. http://dx.doi.org/10.24053/tus-2022-0033.

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The main design parameter of spindle bearings is the ball advance and retardation in addition to the maximum contact pressures and the spin-to-roll ratio. This value describes the leading and trailing motion of the balls in the cage pockets in radially loaded spindle bearings. With a new measuring system, the motion of the balls can be precisely measured along the bearing circumference. At the same time, the developed test rig offers the possibility to load the bearing with dynamic forces. The results show an increase in the ball advance and retardation when dynamically load - ed with the cage

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20

Sun, Jian, Jiaxing Yang, Jinmei Yao, et al. "The effect of lubricant viscosity on the performance of full ceramic ball bearings." Materials Research Express 9, no. 1 (2022): 015201. http://dx.doi.org/10.1088/2053-1591/ac4881.

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Abstract As a new high-end bearing product, full ceramic ball bearings are favoured in a variety. However, there have been few studies on the lubrication of full ceramic ball bearings. The purpose of this study is to reveal the relationship between the vibration and temperature rise of full ceramic angular contact ball bearings and the lubricant viscosity, and to improve the service life of the bearings. In this study, the effects of lubricant viscosity on the vibration and temperature rise of silicon nitride full ceramic angular contact ball bearings under different axial loads and rotation s

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21

Langdon, Genevieve S., Ruixuan Qi, Trevor J. Cloete, and Steeve Chung Kim Yuen. "Influence of Ball Bearing Size on the Flight and Damage Characteristics of Blast-Driven Ball Bearings." Applied Sciences 12, no. 3 (2022): 1133. http://dx.doi.org/10.3390/app12031133.

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This paper presents insights into the influence of ball size on the flight characteristics and damage of a ball bearing embedded in a rear detonated cylindrical charge. It includes results from a post-test damage analysis of ball bearings from previously reported experiments. Computational simulations using Ansys Autodyn were used to provide extra information about the velocity variation during flight and the damage sustained by the ball bearings during the blast event. The influence of bearing size (diameter and mass) was investigated using the validated simulation models to extend the datase

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22

Yu, Yongjian, Ruixiang Ma, Yujun Xue, and Yonggang Liu. "Study on Thermal Characteristics of Angular Contact Ball Bearings Considering Roundness Error." Lubricants 12, no. 2 (2024): 43. http://dx.doi.org/10.3390/lubricants12020043.

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To develop an angular contact ball bearing with low power consumption, a heat generation calculation model for angular contact ball bearings has been established based on bearing quasi dynamics, elastohydrodynamic lubrication theory, heat transfer theory, and Kirchhoff’s law of energy conservation, considering the effects of roundness error, bearing preload, centrifugal effect, and thermal expansion. The correctness of the model is verified through experiments. The influence of different operating conditions and roundness errors on the thermal characteristics of angular contact ball bearings i

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23

Prakash, E., and K. Sivakumar. "Experimental Analysis of Damping and Tribological Characteristics of Nano-CuO Particle Mixed Lubricant in Ball Bearings." International Journal of Nanoscience 14, no. 03 (2015): 1450026. http://dx.doi.org/10.1142/s0219581x14500264.

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Experimental analysis of damping capacity and tribological characteristics of nano CuO added Servosystem 68 lubricant is attempted. CuO nano particles were synthesized by aqueous precipitation method and characterized. Prior to dispersion into lubricant, CuO nano particles were coated with 0.2 wt.% surfactant (Span-80) to stabilize the nano fluid. Tribological characteristics of particle added lubricant were tested in ASTM D 4172 four ball wear tester. Scanning electron microscopy test results of worn surfaces of nano CuO particle added lubricant were smoother than base lubricant. The particle

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24

Ohta, Hiroyuki, Yoshiki Kitajima, Soichiro Kato, and Yutaka Igarashi. "Effects of Ball Groupings on Ball Passage Vibrations of a Linear Guideway Type Ball Bearing (Pitching and Yawing Ball Passage Vibrations)." Journal of Tribology 129, no. 1 (2006): 188–93. http://dx.doi.org/10.1115/1.2401215.

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The effects of ball groupings on the pitching and yawing ball passage vibrations of linear guideway type ball bearings (linear ball bearings) under low-speed operation were studied. For this study, the test linear ball bearings (which can retain the ball grouping in operation) with three types of ball groupings were manufactured, and the pitching and yawing ball passage vibrations of each test linear ball bearing were measured using a laser autocollimator. Moreover, a calculation method of the ball passage vibrations for a linear ball bearing with an arbitrary ball grouping was presented. Acco

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25

Xue, Yujun, Fanjing Meng, Yongjian Yu, and Haichao Cai. "Thermal–Mechanical Coupling Model of a Double-Piece Inner Ring Ball Bearing Based on ADAMS Secondary Development." Lubricants 13, no. 4 (2025): 154. https://doi.org/10.3390/lubricants13040154.

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The double-piece inner ring ball bearing is an important part of an aero-engine. An excessive bearing temperature leads to bearing thermal expansion, lubricating oil performance degradation, and other problems that seriously affect the service life and reliability of the bearing. Thus, it is important to study the temperature field of a double-piece inner ring ball bearing. In this study, considering the heat exchange of lubricant circulating in the oil tank–tubing–bearing and the influence of the flow field in the bearing chamber on the bearing’s temperature rise, a modified transient thermal

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26

Hu, Jing, Xin Zhang, Puyi Wang, et al. "Research on Impact Resistance of Double-Decker Ball Bearing Based on Bionic Loofah Structure." Lubricants 13, no. 5 (2025): 205. https://doi.org/10.3390/lubricants13050205.

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Compared to single-decker ball bearings, double-decker ball bearings offer advantages such as higher speed limits, greater load capacity, and better impact performance. However, the inclusion of an additional bearing and adapter ring structure increases its overall mass, limiting its applications. This study addresses the challenges of achieving lightweight design and impact resistance in double-decker ball bearings. Using bionic principles, this study analyzes the internal spatial structure and fiber distribution of loofah to guide the bionic design of the adapter ring in the double-decker ba

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27

Aramaki, Hirotoshi, Yoshio Shoda, Yuka Morishita, and Takeshi Sawamoto. "The Performance of Ball Bearings With Silicon Nitride Ceramic Balls in High Speed Spindles for Machine Tools." Journal of Tribology 110, no. 4 (1988): 693–98. http://dx.doi.org/10.1115/1.3261715.

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Two types of angular contact ball bearings for machine tools having steel rings and silicon nitride balls were tested and the temperature rise was compared with that of conventional steel ball bearings with grease lubrication and oil-air lubrication as well. Experimental results indicated that the temperature rise of silicon nitride ball bearings was much lower than that of steel ball bearings at high speeds. Calculations made using a computer demonstrated that the reduction of gyroscopic moments and centrifugal forces acting on balls because of the low density of silicon nitride resulted in a

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28

Brown, Peter. "Ball Bearings." Scientific American 301, no. 3 (2009): 76. http://dx.doi.org/10.1038/scientificamerican0909-76b.

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29

Miyake, Shojiro. "Dust Generation Properties of Solid Lubricant Film Coated and Perfluoropolyether Lubricated Ball Bearings." Journal of Tribology 122, no. 4 (2000): 796–802. http://dx.doi.org/10.1115/1.1288929.

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The purpose of this work is to elucidate the properties of ball bearings used for clean applications. Dust, namely wear debris particle generation behavior of ball bearings lubricated with solid lubricant films and low vapor pressure PFPE (perfluoropolyether) grease was investigated using a laser scattering type dust counter under small-angle oscillatory conditions. In the case of the solid lubricated bearing, dust generation began to increase rapidly at a certain number of oscillatory cycles, as deduced from the bearing surface damage. Bearings lubricated with a MoS2/Ag layer and MoS2 sputter

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30

Tong, Van-Canh, and Seong-Wook Hong. "Study on the running torque of angular contact ball bearings subjected to angular misalignment." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 7 (2017): 890–909. http://dx.doi.org/10.1177/1350650117732921.

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Angular misalignment is unavoidable in most applications of rolling-element bearings. The goal of this study is to examine the effects of angular misalignment on the running torque of angular contact ball bearings. A computational method to calculate the running torque of misaligned angular contact ball bearings was introduced. Then, the effects of angular misalignment, along with radial and axial loading, on the running torque of angular contact ball bearings were investigated for two representative preloading methods: constant-force preload and constant-displacement preload. The simulation r

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31

KACZOR, Jarosław, and Andrzej RACZYŃSKI. "THE INFLUENCE OF LOCATION OF THE SURFACE OF LOAD ON THE VALUE OF PRELOAD IN THE SYSTEM OF ANGULAR CONTACT BALL BEARINGS." Tribologia 265, no. 1 (2016): 21–33. http://dx.doi.org/10.5604/01.3001.0010.7576.

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Angular contact ball bearings are commonly used when high stiffness of the bearing is needed. However, a significant stiffness increase can be achieved only through introducing preload (mounting tightness) to the system of angular ball bearings. The aim of the study is to determine how the location of a plane of a load influences the selection of preload in a system of angular contact ball bearings, and, in consequence, the durability of the bearing.

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Jia, Zhining, and Caizhe Hao. "Thermal-Tribological Synergy in PTFE-Based Self-Lubricating Retainers for Ball Bearings Under Oil-Depleted Conditions." Lubricants 13, no. 7 (2025): 280. https://doi.org/10.3390/lubricants13070280.

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To investigate the temperature rise characteristics and tribological performance of angular contact ball bearings equipped with polymer-based self-lubricating retainers under oil-depleted conditions. PTFE-based composite retainers were fabricated using cold-press sintering technology. Comparative experiments on 7206C were conducted on three bearing configurations (domestic, imported NSK, and YSU-S1/S2 self-lubricating retainer bearing) using a dedicated fatigue tester under oil-depleted lubrication. This study demonstrates that angular contact ball bearings equipped with PTFE-based self-lubric

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33

Gao, Xiang, and Chen Yang Zhang. "A Study on Measuring Method for 3D Motion of Balls in High-Speed Ball Bearings." Advanced Materials Research 199-200 (February 2011): 449–55. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.449.

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In order to simply and accurately measure the realistic motion of balls in a ball bearing, a method called the static oblique coordinates is proposed to measure the 3D motion of balls in an angular contact ball bearing. This measuring method utilizes Hall elements as the sensors which are assembled on the side of outer race and cage of the ball bearing with magnetized balls. The voltage signals of the Hall sensors are collected online and applied to calculate and analyze the variation of magnetic axis of the magnetized ball, from which the 3D motion of the balls can be calculated. The basic pr

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34

Mikić, Danilo, Eleonora Desnica, Imre Kiss, and Vladimir Mikić. "RELIABILITY ANALYSIS OF ROLLING BALL BEARINGS CONSIDERING THE BEARING RADIAL CLEARANCE AND OPERATING TEMPERATURE." Advanced Engineering Letters 1, no. 1 (2022): 16–22. http://dx.doi.org/10.46793/adeletters.2022.1.1.3.

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The aim of the research conducted in this particular paper was related to a comprehensive reliability analysis of SKF 626 Open Deep Groove ball bearings, conducted under controlled laboratory conditions. The experimental research consisted of: measurements of radial internal clearance (RIC) in ball bearings, measurement methods for the detection of bearing operating temperature and rolling element bearing wear, complete with the cage deformation of the the damaged bearing, the failure of which was revealed after the examination. The inspected SKF 6206 open deep groove ball bearings operating u

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35

Tărăboanţă, Iulian Paul, Viorel Paleu, Carmen Bujoreanu, Marcelin Benchea, and Dumitru Olaru. "Some Considerations on Vibration Diagnose of Miniature Ball Bearings." Applied Mechanics and Materials 809-810 (November 2015): 670–75. http://dx.doi.org/10.4028/www.scientific.net/amm.809-810.670.

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Vibration based fault detection and diagnose analysis is a well established field in machine or monitoring supervision. The vibration diagnose is also suited for the miniature ball bearings monitoring. The typical balls size starts at 3 mm with the bearing outer diameter of maximum 20 mm. Ball bearings of this size are ideal for precision mechanisms, they are able to carry light loads and they are perfect for handheld medical equipment and tools which must be very small but also very precise and durable. The paper presents experiments carried out on a fully instrumented universal CETR micro-tr

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36

Liu, Jing, Linfeng Wang, Li Zhou, Liming Wang, and Zhifeng Shi. "An Intelligent Detection System Development for Local Faults in a Ball Bearing." June 2019 24, no. 2 (2019): 365–72. http://dx.doi.org/10.20855/ijav.2019.24.21599.

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Local faults can be produced in ball bearings during their manufacturing process. An efficient, fast and accurate local fault detection method can help improve the quality of ball bearings. To overcome this problem, an intelligent detection system for a ball bearing with the local faults is developed based on the NI LabVIEW software. This system includes the determination of bearing fault parameters, signal acquisition, envelope analysis, time-domain parameter analysis and bearing fault status modules. In this system, the frequency-domain feature method is based on the envelope demodulation an

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37

Bogdevičius, Marijonas, and Viktor Skrickij. "Investigation of Dynamic Processes in Ball Bearings with Defects." Solid State Phenomena 198 (March 2013): 651–56. http://dx.doi.org/10.4028/www.scientific.net/ssp.198.651.

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The paper considers the dynamics of ball bearings with defects. A mathematical model of a ball bearing with defects is offered. The performed theoretical and experimental investigations of ball bearings with defects are described. Five cases of various defects are investigated, including the defective outer race, the defective inner race, the defective rolling element, the defective inner and outer races, the rolling element and a separator, the worn-out ball bearing.

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Loom, B. T., W. F. H. W. Zamri, A. K. Ariffin, M. F. Md Din, and A. Shamsudeen. "Angular Contact Ball Bearing Modeling with Different Types of Coatings." International Journal of Engineering and Advanced Technology 12, no. 1 (2022): 92–97. http://dx.doi.org/10.35940/ijeat.a3848.1012122.

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The purpose of this study is to determine the stress distribution of uncoated and coated ball bearings by using finite element analysis. The coatings used in this study are titanium nitride (TiN), titanium carbide (TiC) and chromium nitride (CrN) with a thickness of 5 microns. A contact analysis has been performed on ball bearings to compare the performance between coated and uncoated ball bearings. Boundary loads of 5000 N is used for contact analysis. This study tries to establish a simple, two-dimensional expression for the elastic deformation with the inner ring and ball bearing as a angul

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B.T., Loom, Zamri W.F.H.W., Ariffin A.K., Md Din M.F., and Shamsudeen A. "Angular Contact Ball Bearing Modeling with Different Types of Coatings." International Journal of Engineering and Advanced Technology (IJEAT) 12, no. 1 (2022): 92–97. https://doi.org/10.35940/ijeat.A3848.1012122.

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<strong>Abstract: </strong>The purpose of this study is to determine the stress distribution of uncoated and coated ball bearings by using finite element analysis. The coatings used in this study are titanium nitride (TiN), titanium carbide (TiC) and chromium nitride (CrN) with a thickness of 5 microns. A contact analysis has been performed on ball bearings to compare the performance between coated and uncoated ball bearings. Boundary loads of 5000 N is used for contact analysis. This study tries to establish a simple, two-dimensional expression for the elastic deformation with the inner ring

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Sumate, Sathitbunanan, and Wirote Ritthong. "Friction Tests of Ball Bearings with Comparison of Lubricants." Applied Mechanics and Materials 866 (June 2017): 375–78. http://dx.doi.org/10.4028/www.scientific.net/amm.866.375.

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The ball bearings are the rotating components which are widely spread to moving parts for all machinery operation in general industry. This paper presents the ball bearing resistance tool which has a proper size and can handle the maximum load of 300 kg by using an electric power. The ball bearing resistance tool was used to test the bearings No. 6011 cm. The series of tests was performed in the ball bearings lubricated; engine oil SAE 10W/40, auto transmission fluid Dexron, and hydraulic oil. The rotational speeds for testing were vary; 500, 600 and 700 rpm respectively. At each speed, there

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Zheng, De-Xing, W. F. Chen, Guanyun Xiao, and Dateng Zheng. "Effect of vibration on power loss of angular contact ball bearings." Industrial Lubrication and Tribology 72, no. 5 (2019): 657–64. http://dx.doi.org/10.1108/ilt-06-2019-0217.

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Purpose This paper aims to devote to the experimental analysis and modeling on the heat generation of angular contact ball bearings under vibration. Design/methodology/approach The experiments about vibration effect on bearing temperature are implemented. To explore the causes of bearing temperature rise, the shaft-bearing system is first simplified to a forced vibration model to analyze the bearing loads in vibration. Next, the vibratory-induced additional load is proposed and the spin power loss of balls is re-derived under vibration. The vibration-induced heat is integrated into a novel for

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Zhao, Yi, Jin Yao, and Chun Tong. "Optimization Design of Rectangular Cross-Sectional Wire Race Ball Bearing." Applied Mechanics and Materials 541-542 (March 2014): 553–58. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.553.

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Wire race ball bearing with large radial size and small axial size, saves space extremely, and is widely used in rotary devices of large machineries. This paper establishes a mathematical model of optimization design of rectangular cross-sectional wire race ball bearing,and considers minimum friction torque as objective function, and analyses constraints of contact intensity and design specifications of wire race ball bearing, and forges an optical design method that determines the number of balls, the diameter of ball, the contact angle and the diameter of ball center circle as optimal design

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Cojocaru, Denis, Gelu Ianuș, Vlad Cârlescu, Bogdan Chiriac, and Dumitru Olaru. "Friction Torque in Miniature Ball Bearings." Lubricants 13, no. 1 (2025): 12. https://doi.org/10.3390/lubricants13010012.

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The problem of estimation the friction torque in operating miniature ball bearings lubricated with oil or grease is a complex one. Generally, in an angular contact ball bearing (ACBB), various types of losses can appear including losses caused by kinematics in ball-race contacts (rolling, sliding and pivoting), losses between the cage and the balls and between the cage and the guiding race and losses generated by lubricant, especially at high speeds. In the miniature ACBB, the applied loads have generally low values, and some losses can be ignored. In these circumstances, the most important co

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Zhang, B., and A. Nakajima. "Spherical surface generation mechanism in the grinding of balls for ultraprecision ball bearings." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 214, no. 4 (2000): 351–57. http://dx.doi.org/10.1243/1350650001543241.

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Ultraprecision ball bearings are necessary for high-precision machines and/or high-speed machines since the vibration caused by ball bearings determines the precision of machines as a whole and may make high-speed machines fail to work. To produce ultraprecision ball bearings, it is necessary to clarify spherical surface generation mechanism in the grinding of balls. This paper is the first attempt to investigate the contact trace distribution on the ball surface, which is crucial to spherical surface generation. The kinematic analysis of the contact trace shows that the contact trace is a fix

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Gao, Hang, Qing Lv, and Li Gang Qu. "Influence of Groove Slotting for Micro-Sensor Embedding on Smart Bearing's Mechanical Characteristics." Key Engineering Materials 297-300 (November 2005): 562–66. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.562.

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It is necessary to slot a groove on the outside of the bearing’s raceway in order to embed micro-sensor for smart bearing. Reasonable choice of slotting parameters for different type of bearings is one of key problems to be solved in smart bearing design. In this paper three-dimensional solid model and corresponding mechanics model for a segment of ball bearing’s out ring are built according to some reasonable simplification and supposition of boundary condition and loading status. Further more the influence of slotting parameters on smart bearing’s mechanical characteristics is studied with F

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Wang, Baomin, and Xiao Chang. "Temperature Rise Prediction of Oil-Air Lubricated Angular Contact Ball Bearings Using Artificial Neural Network." Recent Patents on Mechanical Engineering 12, no. 3 (2019): 248–61. http://dx.doi.org/10.2174/2212797612666190530115739.

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Background: Angular contact ball bearing is an important component of many high-speed rotating mechanical systems. Oil-air lubrication makes it possible for angular contact ball bearing to operate at high speed. So the lubrication state of angular contact ball bearing directly affects the performance of the mechanical systems. However, as bearing rotation speed increases, the temperature rise is still the dominant limiting factor for improving the performance and service life of angular contact ball bearings. Therefore, it is very necessary to predict the temperature rise of angular contact ba

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Zheng, De-xing, Weifang Chen, and Miaomiao Li. "An improved model on forecasting temperature rise of high-speed angular contact ball bearings considering structural constraints." Industrial Lubrication and Tribology 70, no. 1 (2018): 15–22. http://dx.doi.org/10.1108/ilt-06-2016-0133.

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Purpose Thermal performances are key factors impacting the operation of angular contact ball bearings. Heat generation and transfer about angular contact ball bearings, however, have not been addressed thoroughly. So far, most researchers only considered the convection effect between bearing housings and air, whereas the cooling/lubrication operation parameters and configuration effect were not taken into account when analyzing the thermal behaviors of bearings. This paper aims to analyze the structural constraints of high-speed spindle, structural features of bearing, heat conduction and conv

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Li, Miaomiao, Yu Wang, Weifang Chen, and Rupeng Zhu. "Temperature rise characteristics for angular-contact ball bearings with oil-air lubrication based on fluid-solid conjugate heat transfer." Advances in Mechanical Engineering 13, no. 1 (2021): 168781402199092. http://dx.doi.org/10.1177/1687814021990927.

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At present, the thermal analysis of oil-air-lubricated angular-contact ball bearings uses empirical heat transfer coefficients to calculate heat transfer. This approach presents problems such as simulating the actual lubrication flow field and ignoring the internal heat conduction in the bearing ring. This paper proposes a CFD steady-state analysis model of oil-air-lubricated angular-contact ball bearings based on fluid-solid conjugate heat transfer to analyze the flow field and temperature field. A temperature rise test of oil-air-lubricated angular-contact ball bearings was carried out to ve

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Liu, Yang, Jiyuan Han, Siyao Zhao, Qingyu Meng, Tuo Shi, and Hui Ma. "Study on the Dynamic Problems of Double-Disk Rotor System Supported by Deep Groove Ball Bearing." Shock and Vibration 2019 (February 26, 2019): 1–12. http://dx.doi.org/10.1155/2019/8120569.

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Aiming at the analysis of the dynamic characteristics of the rotor system supported by deep groove ball bearings, the dynamic model of the double-disk rotor system supported by deep groove ball bearings was established. In this paper, the nonlinear finite element method is used combined with the structural characteristics of deep groove ball bearings. Based on the nonlinear Hertz contact theory, the mechanical model of deep groove ball bearings is obtained. The excitation response results of the rotor system nodes are solved by using the Newmark-β numerical solution method combined with the Ne

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Ghazwani, Mofareh Hassan, and Van Vinh Pham. "Investigating Behavior of Slider–Crank Mechanisms with Bearing Failures Using Vibration Analysis Techniques." Mathematics 12, no. 4 (2024): 544. http://dx.doi.org/10.3390/math12040544.

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This study focuses on investigating the behavior of slider–crank mechanisms with different bearing failures using a vibration analysis technique. The reliability and lifespan of bearings are crucial for such mechanisms, which convert rotary motion to reciprocating motion. Previous research primarily addressed ball-bearing failures, neglecting needle bearings due to their specific applications. To bridge this gap, our experimental setup integrated both roller and ball bearings within a slider–crank mechanism. Vibration data were collected during normal operation, as well as under failure condit

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