Characterization of NRRO in HDD spindle system due to the excitation of ball bearing

Jang, Gunhee; Hong, S.J.; Han, Jang Hee; Jung, D.H.; Lee, C.J.

doi:10.1109/intmag.1999.837825

Cited by 3 publications

(5 citation statements)

References 3 publications

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“…where is the distance between the center of the th roller and any point on the outer raceway, which is calculated by (9).…”

Section: Calculation Of Coordinates Of the Center Of Rollersmentioning

confidence: 99%

“…Tada [8] established a three-dimensional model to calculate nonrepetitive runout of angular contact ball bearings based on the waviness of bearing components. Jang et al [9] characterized the source of nonrepetitive runout (NRRO) of ball bearings and the transmission of NRRO from the ball bearing to the disk. Yang et al [10][11][12] established a mathematical model and a five-degree-of-freedom model to research the influences of geometric error on the NRRO of an angular contact ball bearing.…”

Section: Introductionmentioning

confidence: 99%

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Prediction Method for the Radial Runout of Inner Ring in Cylindrical Roller Bearings

Chen

et al. 2017

Mathematical Problems in Engineering

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The motion error of assembled bearing depends on the geometric profile of bearing components. Therefore, it is crucial to establish the relationship between geometric error of bearing components and motion error of assembled bearing, which contributes to improving the rotational accuracy of assembled bearing in the design and machining of the bearing. The main purpose of this research is to propose an accurate method for predicting the radial runout of inner ring based on the geometrical constraint model of cylindrical roller bearings. In the geometrical constraint model, dimension and form errors in the inner raceway, the outer raceway, and rollers are considered, and the change of contact positions between the raceways and rollers caused by geometric errors of bearing components is taken into account. This method could predict the radial runout of inner ring after bearing components with geometric error are assembled. In order to testify the validity of the proposed prediction method, two particular cases in which the profiles of the inner raceway are circle and ellipse are selected, and the analysis algorithms for the radial runout of inner ring are derived. Two analytical results obtained from the analysis algorithms validate accuracy and effectiveness of the proposed prediction method.

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“…where is the distance between the center of the th roller and any point on the outer raceway, which is calculated by (9).…”

Section: Calculation Of Coordinates Of the Center Of Rollersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Prediction Method for the Radial Runout of Inner Ring in Cylindrical Roller Bearings

Chen

et al. 2017

Mathematical Problems in Engineering

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“…When the jth roller is located in the first quadrant and point A is located below the line o rj O, the geometrical relationship between the jth roller and the inner raceway is indicated in Figure 6(b), and u A is calculated by equation (14) u…”

Section: Calculation Model For the Runout Orbit Of Bearing Centermentioning

confidence: 99%

“…Tada 13 established a three-dimensional model to calculate nonrepetitive runout of angular contact ball bearings based on the waviness of bearing components and studied the influences of waviness in the raceway grooves and balls on the non-repetitive runout of the bearing. Jang et al 14 characterized the source of non-repetitive runout of a ball bearing and the transmission of nonrepetitive runout from the ball bearing to the disk and investigated the effect of viscoelastic damping in the transmission path on the non-repetitive runout of the bearing. Li and Mao 15 developed a 5-DOF static model for non-repetitive runout of deep groove ball bearings and analyzed the effects of roundness error in raceway grooves and diameter difference and disposition of balls on non-repetitive runout of the bearing.…”

Section: Introductionmentioning

confidence: 99%

A method to predict the radial runout of outer ring in cylindrical roller bearings

Chen

et al. 2017

Advances in Mechanical Engineering

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For the rotary motion of a rolling bearing implemented by bearing components under geometric constraints, the rotational accuracy of assembled bearing should also be the result of interaction among geometric errors of bearing components. Therefore, it is significant to research the relationship between geometric errors of bearing components and rotational accuracy of assembled bearing for the design and prediction of bearing accuracy. An accuracy prediction method is proposed to study how the geometric errors of bearing components affect the radial runout of outer ring of cylindrical roller bearings in this article. Furthermore, the calculation model for the orbit of outer ring center is established from which the radial runout of outer ring can be predicted while dimension and roundness errors of raceways and rollers are given arbitrarily. Theoretical algorithms with two typical shapes of outer raceway are deduced to verify the prediction method. In addition, a test on the radial runout of outer ring in a cylindrical roller bearing is performed. The results indicate that prediction results are in good agreement with experimental and analytical results.

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“…Jang et al investigates the source of NRRO by analyzing the NRRO of the outer-race rotating spindle and the inner-race rotating spindle [3]. They reduce NRRO by inserting the visco-elastic material in the transmission path of NRRO.…”

Section: Introductionmentioning

confidence: 99%

Development of Measuring System for the Non-Repetitive Run-Out(NRRO) of Ball Bearing

Chen¹,

Hu²,

Zhao³

et al. 2017

JEMM

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Abstract. The non-repetitive run-out(NRRO) of ball bearing critically influences the rotational accuracy of a machine tool. The quality of manufacturing can be improved by reducing the value of NRRO. This article developed a new ball bearing measuring system to investigate the NRRO caused geometrical errors of the bearing parts include inner and outer races and balls. The characteristic of the proposed measuring system as follows:(1) A high-precision hydrostatic spindle is applied to drive the inner race of the test bearing to obtain the system accuracy; (2) Measurable and variable axial preload is adopted to simulate the operating condition of bearings; (3) A 2 degrees of freedom flexure hinge mechanism (2-DOF FHM) is used to prevent the outer race from rotating; (4) Two capacitive sensors are used to measure radial error of the test bearing to ensure nano resolution.

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Characterization of NRRO in HDD spindle system due to the excitation of ball bearing

Cited by 3 publications

References 3 publications

Prediction Method for the Radial Runout of Inner Ring in Cylindrical Roller Bearings

Prediction Method for the Radial Runout of Inner Ring in Cylindrical Roller Bearings

A method to predict the radial runout of outer ring in cylindrical roller bearings

Development of Measuring System for the Non-Repetitive Run-Out(NRRO) of Ball Bearing

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