Thermal characteristics of spindles on rolling bearings

Zverev, I. A.; Maslov, A. R.

doi:10.3103/s1068798x17040244

Cited by 2 publications

(2 citation statements)

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“…KS Kim et al 14 estimated the equilibrium temperature on an angular contact ball bearing in a spindle system, considering the frictional torque of the bearing, which was calculated using the finite element method (FEM). IA Zverev and AR Maslov 15 studied the spindle speed and load, and the preliminary tension of the bearing was found to have deep effects on the frictional and thermal characteristics of a spindle. However, the currently developed dynamic models of spindle-bearing systems did not consider the small thermal deformations of ceramic in some high-temperature environments.…”

Section: Introductionmentioning

confidence: 99%

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Effect of preload on the dynamic characteristics of ceramic bearings based on a dynamic thermal coupling model

Zhang

Wang

Bai

et al. 2014

Advances in Mechanical Engineering

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Ceramic bearings have a good dynamic output performance under an ultra-high, ultra-low temperature due to their small deformation property. Based on the Harris and Palmgren empirical equation, this article establishes the thermal transfer model of a ceramic motorized spindle. The thermal deformation of a ceramic angular contact ball bearing is calculated. A dynamic and thermal coupling model of the ceramic motorized spindle is built using the Hertz contact theory, which can determine the optimal preload force under different rotating speed conditions. The influence of different temperatures, preload, and rotation speeds on the bearing vibration characteristics was studied. The accuracy of the dynamic and thermal coupling model was verified by the motorized spindle experimental platform. The results show that the thermal deformation of the bearing is an important influencing factor for the output of the dynamic characteristics. Considering the thermal displacement of the bearing, the simulation accuracy of the ceramic motorized spindle-bearing system is in good agreement with the experimental results. By adjusting the bearing preload, the parameters of the rotating speed can effectively reduce the temperature rise and suppress the vibration. The spindle-bearing system model provides a theoretical basis for the dynamic development of a high-speed ceramic bearing.

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Section: Introductionmentioning

confidence: 99%

“…Figure15. The relationship between bearing displacement and preload: (a) the relationship between velocity and radial thermal displacement, under different preload conditions; and (b) the relationship between radial displacement, without considering the thermal displacement and preload force, under a condition of 12,000 r/min.…”

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confidence: 99%