A new fatigue damage accumulation rating life model of ball bearings under vibration load

Cui, Li

doi:10.1108/ilt-05-2019-0180

Cited by 10 publications

(5 citation statements)

References 24 publications

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“…This can lead to cage instability and affect friction-wear characteristics. The main cause of bearing failure is that fatigue failure is no longer the cause [19]. Li, et al [20] believe that cage instability increases cage wear.…”

Section: Introductionmentioning

confidence: 99%

Study on Cage Stability of Solid-Lubricated Angular Contact Ball Bearings in an Ultra-Low Temperature Environment

Su,

Li,

Zhang

et al. 2024

Lubricants

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In the ultra-low temperature environment, the material properties of the bearing change, which puts forward higher requirements for the dynamic performance of the bearing cage. The bearings operating in ultra-low temperature environments commonly use solid lubricants. This study first focused on measuring the traction coefficients of molybdenum disulfide (MoS2) solid lubricant in a nitrogen atmosphere, and the Gupta fitting model is constructed to derive the traction equation. Subsequently, the dynamic differential equation of angular contact ball bearings was established, and the stability of the bearing cage in a nitrogen environment was simulated and analyzed based on the dynamic model. The accuracy of the simulation model was verified through comparison. The results show that less than 10% of errors exist between the experimental data and the traction curve fitted by the Gupta model, and the stability of the cage is closely related to operating parameters and bearing structure parameters. Cage stability increases with axial load but decreases with radial load. The cage stability is optimal when the radial internal clearance of the bearing is approximately 0.06 mm. When other conditions remain unchanged and the ratio of the cage pocket hole gap to the cage guide surface gap is 0.2, the cage stability is the best. The research results will provide a foundation for the design and application of solid-lubricated angular contact ball bearings in ultra-low temperature environments.

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Section: Introductionmentioning

confidence: 99%

Study on Cage Stability of Solid-Lubricated Angular Contact Ball Bearings in an Ultra-Low Temperature Environment

Su,

Li,

Zhang

et al. 2024

Lubricants

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show abstract

“…Finally, fatigue life prediction based on cumulative damage. Cui et al 11 proposed a fatigue life prediction of ball bearings through damage accumulation with time‐varying vibration load. Li et al 12 pointed out the damage evolution equation by the shear stress, considering the stress variation and some material parameters.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, fatigue life prediction based on cumulative damage. Cui et al 11 proposed a fatigue life prediction of ball bearings through damage accumulation with time-varying vibration load.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life prediction of high‐speed train bearings based on the generalized linear cumulative damage theory

Wei

et al. 2023

Fatigue Fract Eng Mat Struct

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The fatigue life prediction of the bearings is a crucial and challenging issue, especially under random cyclic loadings. Although numerous methods have been proposed, the remaining useful life of bearings is still unclear. In this study, the tensile and fatigue properties of high‐speed train bearings after various operating mileages were investigated. The experimental results reveal that the microhardness, tensile strength, elongation, and fatigue strength of the bearing steel present a downward trend with increasing the operating mileage. Based on Miner's law, we proposed the generalized linear cumulative damage theory, which illustrates that fatigue damage of components per unit mileage can be linearly superimposed. Accordingly, the residual strength model was established to evaluate the fatigue life of high‐speed train bearings. It would provide a new insight for the fatigue life prediction of bearings under random loadings.

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“…Cylindrical roller bearings are key components in high-power mechanical transmission system (Li, 2020), and their rolling element cylindrical rollers are the core components of the bearings. They have direct impact on the performance and fatigue life of the bearings.…”

Section: Introductionmentioning

confidence: 99%

Variation of surface integrity of cylindrical rollers under grinding and superfinishing processes

Wang

Liu

et al. 2023

ILT

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Purpose The aim of this study is to first investigate the surface integrity of cylindrical rollers under grinding process and then design a reasonable superfinishing process that improve the anti-fatigue performance of cylindrical rollers by optimization of the surface integrity. Design/methodology/approach First, the white and dark layers produced by the grinding process is analyzed by microscope. Then, the influence of oilstone pressure on the stock removal, surface precision and crowned profile are explored. Finally, an optimal superfinishing process and a novel turnaround device are designed to improve surface integrity. Findings The experimental results show that as the oilstone pressure increases, the stock removal first increases and then remains stable. This hints that the stock removal of a single-time superfinishing process has an upper limit. In the current conditions, the maximum stock removal is 6 µm. Double-time superfinishing process and the turnover device can effectively eliminate the white and dark layers and improve the symmetric of roller profile. In addition, the surface precision is also improved. Originality/value The surface integrity of bearing rollers is very important to the application of industry field. The findings and the methods in the study can be helpful to improve the surface integrity of the bearing rollers.

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A new fatigue damage accumulation rating life model of ball bearings under vibration load

Cited by 10 publications

References 24 publications

Study on Cage Stability of Solid-Lubricated Angular Contact Ball Bearings in an Ultra-Low Temperature Environment

Study on Cage Stability of Solid-Lubricated Angular Contact Ball Bearings in an Ultra-Low Temperature Environment

Fatigue life prediction of high‐speed train bearings based on the generalized linear cumulative damage theory

Variation of surface integrity of cylindrical rollers under grinding and superfinishing processes

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