Effect of preload on running accuracy of spindle

Kim, K.; Kim, S.S.

doi:10.1016/0890-6955(89)90058-8

Cited by 23 publications

(16 citation statements)

References 3 publications

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“…Thermally induced increase in bearing preload from 550 to 2,080 N leads to a decrease of Ra by about 50%. Although a large preload leads to a decreasing surface roughness, in this paper as well as in [75], it has been observed that an excessive preload is not appropriate for achieving high machining accuracy. High preloads lead to increasing tribological effects and thus to reduced bearing lifetime.…”

Section: Influence Of Thermal Load On Manufacturing Accuracymentioning

confidence: 63%

Cooling of motor spindles—a review

Denkena

Bergmann

Klemme

2020

Int J Adv Manuf Technol

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Thermally induced loads in motor spindles can cause a number of undesired effects. As a result, the process capability of spindles, and thus, the productivity of a process can decrease. Future motor spindles will be exposed to higher mechanical and especially thermal loads due to trends aiming to increase power densities and maximum speeds. These trends are amplified by increasingly powerful drive concepts and developments in bearing technology. Therefore, researchers assume that it will not be possible to raise the performance potential of spindles due to insufficient cooling of its heat sources. A series of different cooling concepts have been researched and developed in recent decades. These developments have been made for different purposes. They also differ considerably in terms of their cooling principles and cooling performance. In this article, these cooling approaches and the motivations for their development are described. Firstly, the causes of heat development in motor spindles are described in a historical context. Subsequently, the effects of heat development on the manufacturing-relevant properties of motor spindles are revealed. Finally, current deficits in the area of spindle cooling and the need for the development and transfer into industrial practice of more efficient and cost-effective cooling concepts to overcome future challenges are discussed.

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Section: Influence Of Thermal Load On Manufacturing Accuracymentioning

confidence: 63%

Cooling of motor spindles—a review

Denkena

Bergmann

Klemme

2020

Int J Adv Manuf Technol

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“…Kim [120] found the rotation accuracy of HSS was closely related to the spindle preload, which means the spindle rotation error varies with the preload, furthermore, the optimal preloads correspond to specific speeds respectively. Heavy preload can better guarantee the rotation accuracy of the HSS, unfortunately, serious heat generation and thermal deformation can cut down the accuracy either [121].…”

Section: Comprehensive Influence Of Uniform Preload On Spindle Dynamimentioning

confidence: 99%

Research Development of Preload Technology on Angular Contact Ball Bearing of High Speed Spindle: A Review

Kolář

et al. 2020

Int. J. Precis. Eng. Manuf.

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Preload of angular contact ball bearing (ACBB) is extremely important to high speed spindle, which has a great influence on the spindle's dynamic and thermal characteristics, etc. In this paper, the preload source of ACBB; the main preload principles, methods and their advantages and disadvantages; research progress and development trend of preload device are discussed. On the basis, common criteria for computing and choosing optimal preload; influence of preload on dynamic and thermal properties of bearing and spindle system are discussed as well. The purposes of this paper are to clarify the research idea of preload, and provide a reference for accurately calculating the bearing stiffness under sophisticated conditions, precisely controlling dynamic parameters of high speed spindle, designing preload device with excellent dynamic performance, etc.

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“…The effects of bearing preloads on the performance of shaft-bearing systems and their dynamic characteristics have been studied by several authors [1][2][3]. Akturk et al [4] used a three-degree-of-freedom model to study the effects of bearing preload and number of rolling elements on vibration characteristics of an angular contact ball bearing.…”

Section: Literature Review 21 Preload Issuesmentioning

confidence: 99%

Effects of Preloads on Vibration Transmission Through Double Row Angular Contact Ball Bearings

Gunduz

Dreyer

Singh

2011

Volume 8: 11th International Power Transmission and Gearing Conference; 13th International Conference on Advanced Vehicle and T

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This work investigates the role of double row angular contact ball bearings as a vibration transmitter in shaft-bearing assemblies. In our analyses the double row bearings are represented as five dimensional stiffness elements (with associated damping) through an extension of the stiffness matrix concept described by Lim and Singh (1989) for single row bearings to double row angular contact ball bearings. In particular, the effects of bearing preloads on dynamic characteristics of double row angular contact ball bearings are first numerically explored. The dynamic responses of face-to-face, back-to-back and tandem arrangements are evaluated on a comparative basis under various preloads. The nature and extent of preloads significantly affect the vibration characteristics of the bearing assembly due to major changes in the diagonal and off-diagonal elements of the stiffness matrix, and these effects vary for alternate configurations. The dynamic effects of bearing preloads are then experimentally investigated for a wheel bearing assembly containing double row angular contact ball bearings (with back-to-back arrangement) under two different preloading mechanisms. Experiments show that the mechanism and amount of bearing preloads significantly affect the system natural frequencies, mode shapes and vibration amplitudes, thus altering the vibration behavior of the bearing assembly. Suggestions for further work and applications will be briefly mentioned.

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Effect of preload on running accuracy of spindle

Cited by 23 publications

References 3 publications

Cooling of motor spindles—a review

Cooling of motor spindles—a review

Research Development of Preload Technology on Angular Contact Ball Bearing of High Speed Spindle: A Review

Effects of Preloads on Vibration Transmission Through Double Row Angular Contact Ball Bearings

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