A study on the development of a deformable rubber variable preload device

Choi, Chi-Hyuk; Kim, Dong‐Hyeon; Lee, Choon-Man

doi:10.1007/s12541-014-0644-y

Cited by 8 publications

(3 citation statements)

References 13 publications

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Section: Centrifugal Preload Devicementioning

confidence: 99%

“…In addition to the above structures, scholars have developed deformable rubber [91] and liquid preload device [92] based on material properties and centrifugal principle, as shown in Fig. 15a [91] and b [92] respectively. The main structures are similar despite of the conversion mediums, preloads are generated from the deformed mediums under centrifugal effects, where the liquid preload device owns excellent fluidity and shape adaptability.…”

Section: Centrifugal Preload Devicementioning

confidence: 99%

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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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Section: Centrifugal Preload Devicementioning

confidence: 99%

Section: Centrifugal Preload Devicementioning

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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“…[17][18][19][20] Several authors have also studied a variable preload device, which focused on using an automatic variable preload system that changed as the speed changed. [21][22][23] Finally, rolling contact fatigue in ball bearings has long been recognised as a complex issue that has a deep impact in this field because it displays phenomena at various scales. Its presence depends on the testing conditions, such as contact pressure, temperature, number of revolutions, and steel cleanliness.…”

Section: Introductionmentioning

confidence: 99%

An optimum preload method for machine tool spindle ball bearings

Zhang

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part B:

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To provide a suitable rotation rate for different machining processes, a single machine tool spindle should work over a wide range of speeds. This study considered the effects of speed on dynamic behaviour of ball bearings and combined the fatigue life model and ball bearing internal load distribution model to determine the appropriate preload. First, the influence of speed on internal load distribution and ball bearing contact angles was analysed. The preload was calculated using a ball bearing internal load distribution model. Next, assuming constant bearing fatigue life, the theoretical preload curves were determined using the fatigue life model by changing the reliability factor. Finally, at low speeds, the maximum designed preload (design value) was set as the initial preload. With the increase in speed, the optimum preload was hierarchically obtained within the internal region between the theoretical preload curves. An experimental test rig for the optimum preload of ball bearings, which can automatically adjust the preload, was developed. The proposed method for determining the optimum preload was verified using the measured performance indicators, including the temperature, motor currents, and vibration of ball bearings. The results showed that the optimum preload suggestion made the test ball bearings exhibit excellent behaviour.

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