Effects of tilted misalignment on loading characteristics of cylindrical roller bearings

Ye, Zhenhuan; Wang, Liqin; Li, Gu; Zhang, Chuanwei

doi:10.1016/j.mechmachtheory.2013.05.006

Cited by 38 publications

(15 citation statements)

References 12 publications

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“…which is calculated by the function with principal curvature difference F(r). 15 Combining the entire bearing balance equations (5) and (6) and the calculated equation for both centrifugal force and gyroscopic moment equations (7) and (8), the bearing internal contact angles and loads are determined by using the Newton-Raphson method…”

Section: Bearing Running Model With Parallel Misalignmentmentioning

confidence: 99%

“…Zamponi et al 5 presented a mixed methodology employing both a finite element analysis (FEA) method and Hertz contact theory to analyze the contact pressure in bearings and considered the effects of tilted misalignment on the load distribution for bearings with both rigid and flexible rings. Z Ye et al 6 analyzed the distribution of loads and contact stress in high-speed roller bearings with quasi-dynamic method and FEA method considering effects of tilted misalignment between inner and outer rings for the roller cylindrical bearings. Interestingly, the influence of installation misalignment has rarely been studied for angular contact ball bearings, which are widely used in machine tool spindles driven by computer numerical control (CNC).…”

Section: Introductionmentioning

confidence: 99%

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The bearing parallel misalignment running model–based machine tool spindle thermal error analysis

Dong

Zhou

Chen

2018

Advances in Mechanical Engineering

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As a key component of the machine tool spindle, bearing has critical influences on the spindle thermal error. In particular, the installation errors of bearing have considerable effects upon the spindle thermal error by altering the bearings' internal contact angles, contact loads, and friction torques for different ball positions, but have yet to be fully elucidated. In this article, the influence of installation errors on the resulting spindle thermal error was evaluated using both empirical methods and simulation method, with the ultimate aim of reducing installation error. Deviations within the bearing support were used to simulate bearing parallel misalignment; bearing parallel misalignment running model was built, and an analysis and comparison of various conditions were used to determine the influence, showing that the parallel misalignment has significant influence on the spindle Z direction thermal error.

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Section: Bearing Running Model With Parallel Misalignmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The bearing parallel misalignment running model–based machine tool spindle thermal error analysis

Dong

Zhou

Chen

2018

Advances in Mechanical Engineering

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“…b ) and the actual roller revolution speed (! bt ) to the theoretical roller revolution speed (see equation (14)). The deviation ratio of the cage whirl speed (s) is defined as the ratio between the standard deviation value and the average value of the whirl velocity of the cage mass centre (see equation (15)) to represent the stability of the cage.…”

Section: Effect Of Tilt Of the Inner Ring On The Stability Of Cylindrmentioning

confidence: 99%

“…In this research, odd and even numbers of rolling elements were used in the loaded zone. Ye et al 14 focused on cylindrical roller bearings with an arc generatrix profile to study the impact of ring misalignment on the maximum stress and the stress fluctuation in the loaded zone during bearing operation.…”

Section: Introductionmentioning

confidence: 99%

Effects of axial misalignment of rings on the dynamic characteristics of cylindrical roller bearings

Wang

2015

Proceedings of the Institution of Mechanical Engineers, Part J:

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Axial misalignment of bearing rings has an effect on the loading characteristics and stability of cylindrical roller bearings. Based on the kinematic relationship between bearing elements, a dynamic model of cylindrical roller bearings was developed. The effect of axial misalignment of rings on the contact pressure distribution of cylindrical roller bearings with a Lundberg logarithm modified profile roller was analysed. The vibration of the contact pressure and the cage stability during bearing operation were also analysed. The results show that a tilt between the inner ring and outer ring leads to stress concentration along the roller generatrix of the roller in the loaded zone. At the same time, when the bearing in operation, the cage sliding ratio and swing amplitude of the rollers in the loaded zone increase with the increasing tilt angle of the inner ring. The stress concentration of the rollers in the loaded zone that results from the tilt between the inner ring and outer ring could be improved by increasing the Lundberg logarithm modified coefficient.

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“…In particular, angular misalignment resulting from various factors, such as shaft bending, initial mounting, or manufacturing error, has been found to lead to uneven load distribution and pressure concentration in rolling elements, and consequently, reduce bearing fatigue life. 1,2 A number of researchers have presented theoretical results of the fatigue life of misaligned ball and roller bearings. Lundberg 3 first developed the logarithmic profile for roller, which aimed to reduce the edge loading and thus improve the bearing fatigue life at high load or under misalignment.…”

Section: Introductionmentioning

confidence: 99%

Fatigue life of cylindrical roller bearings

Tong

Kwon

Hong

2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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This paper dealt with the fatigue life of cylindrical roller bearings with several significant error sources that may occur during installations. A four degree-of-freedom quasi-static model for cylindrical roller bearings was developed, which took into account potential error sources such as angular misalignment, axial offset, and radial clearance, together with inertial loading by rotational speed and induced moment loads. A 3D contact model was employed to provide contact pressure distributions in rolling elements. The fatigue life of a cylindrical roller bearing was analyzed as a function of angular misalignment under various loading conditions. Then, the fatigue life analysis was extended to the combined effects of radial clearance, axial offset, and the number of rollers, along with angular misalignment. The computational results showed the significance of each error source on fatigue life. They further showed that cylindrical roller bearing fatigue life maximized when the radial clearances were slightly negative, and that it increased almost linearly with the number of rollers.

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Effects of tilted misalignment on loading characteristics of cylindrical roller bearings

Cited by 38 publications

References 12 publications

The bearing parallel misalignment running model–based machine tool spindle thermal error analysis

The bearing parallel misalignment running model–based machine tool spindle thermal error analysis

Effects of axial misalignment of rings on the dynamic characteristics of cylindrical roller bearings

Fatigue life of cylindrical roller bearings

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