Cage and Roller Slip in High-Speed Roller Bearings

Boness, R. J.

doi:10.1243/jmes_jour_1969_011_023_02

Cited by 14 publications

(5 citation statements)

References 3 publications

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“…In general, Table 3 shows the experimental data under all operating conditions based on speed and strain signals, respectively. It includes the measured shaft speeds, cage speeds, and the cage slip ratios calculated by equations (1) and (2) as well as the characteristic frequencies of the strain signals and the cage slip ratios calculated by equations (3) and (4). It demonstrates that, at lighter test loads (12 and 16 kgf), the measured cage speed and the frequency of rollers passing through the notch almost remain unchanged although the shaft speed increases from 1000 to 2000 r/min.…”

Section: Resultsmentioning

confidence: 99%

“…Several investigators have worked on cage slip in roller bearings theoretically and experimentally. In previous studies, [2][3][4][5][6][7][8][9] the influence of different factors on cage slip has been examined. The factors included the radial load, shaft speed, the number of rollers, out-ofroundness, the presence of misalignment, viscosity and temperature of the oil, traction force, and so on.…”

Section: Introductionmentioning

confidence: 99%

“…In experimental investigations of the cage slip, how to measure the cage slip is a significant problem. Boness 4 monitored cage and roller speeds by using magnetic transducers and electronic pulse counters. O'Brien and Taylor 6 recorded the passing of cage rivets with a magnetic pick-up to obtain the cage speed.…”

Section: Introductionmentioning

confidence: 99%

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Development of an experimental system to measure the cage slip of cylindrical roller bearing

Hou

Wang

2019

Structural Health Monitoring

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Although the cage slip of cylindrical roller bearings has been measured and studied experimentally, it is difficult to use current experimental measurement to detect the cage slip of the bearing in actual service or engineering environment. The problem is attributed to the limit on the space for current test instruments that can be installed arbitrarily in laboratory, but not in actual environment. A novel measurement based on strain detection is presented. This measurement can be used to obtain the cage slip of the bearing in service or large bench test. The technique is demonstrated and validated in principle by an experimental system. The system is developed to obtain the strain signal of the outer ring in loaded zone as well as the speed signal of the cage and the inner ring at the same time. Under given test load–speed conditions, the cage slip based on strain detection was compared with the cage slip based on speed detection. Experimental results showed that cage slip ratio curves based on strain responses agreed very well with those based on speed signals. In this way, it is revealed that frequency characteristics of strain signals can be used to obtain internal cage slip of cylindrical roller bearings.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of an experimental system to measure the cage slip of cylindrical roller bearing

Hou

Wang

2019

Structural Health Monitoring

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“…Poplawski [10] looked into how the temperature of the oil affected the cage slide during the running conditions and concluded that an increased temperature of the oil led to a reduction in the cage slip. Factors such as operating speed, oil viscosity, radial clearance, and bearing load were shown to influence cage sliding, as described by bones [11]. Hamrock [12] emphasised how the curvature influences the sliding ability of the cage and rollers.…”

Section: Introductionmentioning

confidence: 99%

Finite Element Analysis of Solid and Hollow Roller Bearings to Predict the Influence of Contact Factors on Cage Slip

Arthanari,

Manivannan,

Palanisamy

et al. 2024

AMM

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This study examines the influence of contact factors such as bearing deformation, contact width and contact pressure on cage slide in cylindrical roller bearings. A cylindrical shaped roller bearing test setup is designed in order to determine the operating speed of bearing components under varying working circumstances. Solid and hollow roller bearings are analyzed using finite element technique, and the contact parameters are obtained. The cage slip obtained by experimental work is correlated with the contact parameters of hollow and solid shaped roller bearings. The specific load acting on solid rollers at various angular positions and the corresponding bearing deflection are obtained by FEA and the bearing run out is estimated. A new methodology is developed for deriving the contact mechanics of hollow roller to predict contact pressure and contact width from the roller deflection. The effect of hollowness on these parameters is derived and the corresponding cage slip is correlated. The effect of hollowness on bending and resultant stresses is obtained by numerical and analytical methods to correlate the stability of hollow roller bearing with the percentage of hollowness.

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“…Several authors investigated the connection between cage and roller slip and the temperature of the bearing. Slip is described by Boness [1] and Tassone [2] as a relative difference in the velocity between the rolling elements or the cage of the bearing: the predicted velocity of the elements differs from the actual velocity. This can happen due to a poor frictional force between the rolling-elements and the raceway.…”

Section: Introductionmentioning

confidence: 99%

Temperature measurements on fast-rotating objects using a thermographic camera with an optomechanical image derotator

Altmann

Pape

Reithmeier

2017

Infrared Sensors, Devices, and Applications VII

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Temperature measurements on fast-rotating objects using a thermographic camera with an optomechanical image derotator," Proc. SPIE ABSTRACTIncreasing requirements concerning the quality and lifetime of machine components in industrial and automotive applications require comprehensive investigations of the components in conditions close to the application. Irregularities in heating of mechanical parts reveal regions with increased loading of pressure, draft or friction.In the long run this leads to damage and total failure of the machine. Thermographic measurements of rotating objects, e.g., rolling bearings, brakes, and clutches provide an approach to investigate those defects. However, it is challenging to measure fast-rotating objects accurately. Currently one contact-free approach is performing stroboscopic measurements using an infrared sensor. The data acquisition is triggered so that the image is taken once per revolution. This leads to a huge loss of information on the majority of the movement and to motion blur. The objective of this research is showing the potential of using an optomechanical image derotator together with a thermographic camera. The derotator follows the rotation of the measurement object so that quasi-stationary thermal images during motion can be acquired by the infrared sensor. Unlike conventional derotators which use a glass prism to achieve this effect, the derotator within this work is equipped with a sophisticated reflector assembly. These reflectors are made of aluminum to transfer infrared radiation emitted by the rotating object. Because of the resulting stationary thermal image, the operation can be monitored continuously even for fast-rotating objects. The field of view can also be set to a small off-axis region of interest which then can be investigated with higher resolution or frame rate. To depict the potential of this approach, thermographic measurements on a rolling bearings in different operating states are presented.

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Cage and Roller Slip in High-Speed Roller Bearings

Cited by 14 publications

References 3 publications

Development of an experimental system to measure the cage slip of cylindrical roller bearing

Development of an experimental system to measure the cage slip of cylindrical roller bearing

Finite Element Analysis of Solid and Hollow Roller Bearings to Predict the Influence of Contact Factors on Cage Slip

Temperature measurements on fast-rotating objects using a thermographic camera with an optomechanical image derotator

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