Analysis of spindle bearing load with regard to the false brinelling effect caused by machine hammer peening

Mannens, Robby; Trauth, Daniel; Falker, Jens; Brecher, Christian; Klocke, Fritz

doi:10.1007/s00170-017-1523-3

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…The axial load was applied from the opposite side via the axial loading unit (7). The radial force is applied via the radial loading unit (8) into a needle roller bearing, which loaded the test bearing shaft (6). The interposed needle roller bearing (9) was necessary to avoid impairing the shaft's freedom of rotation.…”

Section: False Brinelling Test Rigmentioning

confidence: 99%

“…The dynamic loads with very small oscillating movements can, for example, be triggered by vibrations of machines or aggregates or occur during transport by truck [4], railway [5], or ship [1]. Moreover, similar loads can occur in the blade bearings of wind turbines, spindle bearings of hammering machining tools [6], bearings of robots, or motorbike steering head bearings [2,7,8]. Grease-lubricated rolling bearings are widely used in all branches of mechanical engineering due to their low design complexity and cost-effective operation compared with oil-lubricated bearings.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Grease Properties on False Brinelling Damage of Rolling Bearings

Tetora¹,

Schadow²,

Bartel

2023

Lubricants

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False brinelling damage in rolling bearings can lead to reduced component lifetimes and increased noise emissions, adversely affecting machine performance. Therefore, minimizing or avoiding such damage is very important. Environmental or operating conditions that can lead to false brinelling damage often cannot be avoided. Alternatively, such damage can be significantly reduced with suitable lubricants. This study utilized a test method from the research project FVA 540 to examine the impact of the base oil viscosity and NLGI class of greases on false brinelling damage at different temperatures. The results showed a clear dependency between the base oil viscosity of greases and the extent of false brinelling damage. Two different thickeners (lithium hydroxystearate/diurea) and different base oil types (PAO/esters) were investigated for this purpose. The results indicate that temperature had a significant effect on the physical and rheological properties of greases and show the potential for reducing false brinelling damage through the selection of appropriate lubricants. These results provide valuable information to improve the performance and lifetime of rolling bearings in industrial settings.

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Section: False Brinelling Test Rigmentioning

confidence: 99%