Comparison of Power Losses and Temperatures between an All-Steel and a Direct Outer Ring–Cooled, Hybrid 133-mm-Bore Ball Bearing at Very High Speeds

Gloeckner, Peter; Martin, Matthias; Flouros, Michael

doi:10.1080/10402004.2016.1262930

Cited by 20 publications

(10 citation statements)

References 15 publications

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“…Therefore, the centrifugal force of TW-structure is reduced. According to the literature (Gloeckner et al, 2016), the reduction of centrifugal force will cause the increase of the speed limit, so the TW-structure improved speed limit.…”

Section: Analysis Of Slip At High Speedmentioning

confidence: 99%

Finite element analysis of layered, variable density, ball bearings based on pearl and turtle shell bionic structures

Zhang

et al. 2020

ILT

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Purpose This paper aims to present ball bearings with a composite structure based on the bionics principle and shows the comparison between five types of different structures. Design/methodology/approach By means of the finite element method, the stress and other parameters between different structures are compared and verified. Finally, the comprehensive parameters of different structures are evaluated by the analytic hierarchy process method. Findings The evaluation of the comprehensive parameters of five types of structures is shown here. Originality/value The value of this paper is calculated and compared to the parameters of five types of different structures, and the parameter score evaluation of each structure is given. Different structures can be selected according to different parameter requirements, which to provide a theoretical basis for the design of ball bearings. Peer review The peer review history for this article is available at: https://publons.com/publon10.1108/ILT-10-2019-0413

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Section: Analysis Of Slip At High Speedmentioning

confidence: 99%

Finite element analysis of layered, variable density, ball bearings based on pearl and turtle shell bionic structures

Zhang

et al. 2020

ILT

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“…3. Silicon nitride balls appear to dissipate less power than steel ones 2 ; so, bearing efficiency can be improved; it could also induce a lower lubricant temperature and so improve bearing operating conditions.…”

Section: Introductionmentioning

confidence: 99%

“…This is particularly important when rotational speeds lead to the range of 1 to 3 million D.N (bore diameter (mm) × shaft rotational speed (rpm)), which corresponds to the highspeed domain. A gain on bearing efficiency is thus expected with hybrid ball bearings: Cento and Dareing 3 estimated by computations that a hybrid radial ball bearing dissipates 20% less than a full-steel one; Paleu et al 4 calculated that the power loss of an angular contact ball bearing is decreased by 30 to 50% for normal-and high-speed ranges thanks to the use of ceramic balls; Gloekner et al 2 measured that a hybrid ball bearing has lower power losses than a full-steel one for the speed range 2.5 to 2.8 million D.N (5 to 8% less). Some of these authors also covered the standard speed range (below 1 million D.N) and noticed a slight reduction of power losses thanks to hybrid ball bearings, ranging from 5% 3 to 30%.…”

Section: Introductionmentioning

confidence: 99%

Thermal behavior in rolling bearing applications: Comparison of steel and ceramic materials applied to tapered rollers

Fossier

Touret

Lefort

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part J:

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Due to their properties, ceramic materials can improve both reliability and efficiency of rolling bearings. Most of the studies have investigated the power losses and temperatures of ball bearings with balls made of silicon nitride (Si3N4) versus steel ones. This study thus focuses on tapered rollers. Thanks to experimental and numerical means, the thermal behavior of tapered roller bearings is investigated for both steel and silicon nitride rollers. Various operating conditions (rotational speed, oil flow rate and oil temperature) are tested to allow the comparison of the behavior of both bearing set-ups (full-steel and hybrid). A thermal model is developed according to the thermal network method and is validated thanks to experimental results. It is then used to analyze behaviors observed during experiments, related to thermal exchanges and power losses. The effect of changing the mechanical and thermal properties of the roller material is investigated.

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“…Compared with steel bearings, full ceramic bearings have been widely studied because of their lighter weight and higher hardness. The performances of full ceramic bearings and hybrid ceramic bearings have been compared with those of steel bearings and have showed advantages in speed [1] and service life [2][3][4][5]. Full ceramic bearings have been widely used in high-speed lathes, aero-engines, chemical machinery, and other fields.…”

Section: Introductionmentioning

confidence: 99%

A Theoretical Model with the Effect of Cracks in the Local Spalling of Full Ceramic Ball Bearings

et al. 2019

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For full ceramic ball bearings, cracks occur frequently in the spalling on the rings, which leads to impacts on the bearing dynamic characteristics. In this paper, the spalling is set on the outer ring, and the dynamic model considering the effect of crack is proposed. The crack is considered to be related to the strain energy, and the effect on the stiffness of the outer ring is also analyzed. Results show that the appearance of cracks leads to the reduction of the full ceramic bearing stiffness, and the vibration amplitude of bearing increases. The effect of a crack depends on its size, and the vibration of the bearing with cracks of different widths and depths vary greatly. This study provides theoretical basis for the calculation of full ceramic bearing and is of great significance for the state monitoring and fault diagnosis.

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Comparison of Power Losses and Temperatures between an All-Steel and a Direct Outer Ring–Cooled, Hybrid 133-mm-Bore Ball Bearing at Very High Speeds

Cited by 20 publications

References 15 publications

Finite element analysis of layered, variable density, ball bearings based on pearl and turtle shell bionic structures

Finite element analysis of layered, variable density, ball bearings based on pearl and turtle shell bionic structures

Thermal behavior in rolling bearing applications: Comparison of steel and ceramic materials applied to tapered rollers

A Theoretical Model with the Effect of Cracks in the Local Spalling of Full Ceramic Ball Bearings

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