Influence of assembly conditions on the static load capacity of thrust ball bearings

Yakovishin, A. S.; Королев, А. В.; Davidenko, O. Yu.; Iznairov, B. M.; Balaev, A. F.; Mukhina, E. V.; Mazina, A. A.; Sidorenko, A. D.; Savran, Sergey; Konovalov, V. V.

doi:10.3103/s1068798x17010087

Cited by 2 publications

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“…Shinkarenko et al 26 studied the effect of surface deformation on the loadbearing performance, and found that surface microdeformation can effectively improve the bearing capacity. Korolev et al 27 studied the influence of different assembly conditions on the bearing capacity of ball bearings through experiments.…”

Section: Introductionsmentioning

confidence: 99%

Analysis on the escape phenomenon of oil mist from turbine lower guide bearing based on VOF model

Pang

Liu

et al. 2021

Advances in Mechanical Engineering

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To analyze the cause and mechanism of oil mist escaping from the lower guide bearing during the operation of a turbine, the oil-gas mixture in the lower guide bearing was numerically simulated by using the VOF two-phase flow model and the SST turbulence model. The influences of different sealing clearances and speeds on the flow field and the oil-gas distribution in the oil tank were studied, and the escaping characteristics of oil mist were analyzed. The results show that increasing the clearance of the labyrinth seal will reduce the pressure difference between the inside and outside of the oil tank and reduce the driving force for the escape of the oil mist. However, increasing the clearance will increase the turbulence of the flow field, the number and volume of bubbles in the lubricating oil, which will lead to the uneven distribution of oil and gas and reduce the motion stability of the lower guide bearing. The change of speed will affect the normal use of the shaft-collar pump. High speed will aggravate the generation of bubbles in the oil tank and increase the possibility of cavitation in the lower guide bearing structure. In engineering practices, it is necessary to comprehensively consider factors such as oil mist escape phenomenon, economic benefits, process manufacturing and assembly, and adopt the lower guide bearing structure with a suitable labyrinth seal clearance.

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Section: Introductionsmentioning

confidence: 99%

Analysis on the escape phenomenon of oil mist from turbine lower guide bearing based on VOF model

Pang

Liu

et al. 2021

Advances in Mechanical Engineering

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“…As an important part of rolling bearing, rolling ball contacts with its friction pairs frequently, the wear in the process of contacting has great effect for the assembly precision of bearing [1,2]. During the running of rolling ball, it not only rotates alone the inner or outer ring but also slides when the friction of contact point between rolling ball and its friction pairs is not enough, which is called the sliding-rolling state [3]. Cheng et al [4] established a model for calculating surface friction heat in slide state.…”

Section: Introductionmentioning

confidence: 99%

Wear experiment and model of rolling balls in sliding-rolling conditions

Jian-fei

Shen

Chen

2017

Mechanics & Industry

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When the rolling bearing is working, sliding and rolling always exist in the friction pair simultaneously. The operating condition is complicated and fickle. For these kinds of behaviors, it is necessary to simulate the bearing sliding-rolling ratio (SRR), load, speed and other operating parameters in the wear-testing research between the rolling elements and the inner or outer ring. By the improvement of the transmission, measurement, and control system of an existing pure rolling contact fatigue test rig for bearing ball with three contact points, the simulation of bearing balls would be more realistic and test parameters are close to actual operating conditions. The rolling ball wear experiments were carried out under different SRRs operation conditions. By analyzing test data, the calculation model of wearing rate under the operation condition of sliding-rolling was established based on Archard model.

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Influence of assembly conditions on the static load capacity of thrust ball bearings

Cited by 2 publications

References 0 publications

Analysis on the escape phenomenon of oil mist from turbine lower guide bearing based on VOF model

Analysis on the escape phenomenon of oil mist from turbine lower guide bearing based on VOF model

Wear experiment and model of rolling balls in sliding-rolling conditions

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