Results 21 to 30 of about 949,222 (276)

Research on the influencing factors of thermal characteristics of high-speed grease lubricated angular contact ball bearing

open access: yesAdvances in Mechanical Engineering, 2021
The high temperature rise of grease lubricated angular contact ball bearing under high speed operation will affect the working accuracy of the bearing, and even lead to the loss of accuracy.
Chang Zhang   +3 more
doaj   +1 more source

Bearing defect detection and diagnosis using a time encoded signal processing and pattern recognition method [PDF]

open access: yes, 2012
Many new bearing monitoring and diagnosis methods have been explored in the last two decades to provide a technique that is capable of picking up an incipient bearing fault.
Gu, Fengshou   +7 more
core   +1 more source

Tribo-mechanical properties of graphite/talc modified polymer composite bearing balls

open access: yesMaterials Research Express, 2019
In this study, epoxy resin blended with graphite/talc micro fillers are used to fabricate the composite bearing balls of uniform diameter of 12.7 mm. These bearing balls were tested in four ball test rig for investigation of friction and wear.
Anand Singh Rathaur   +2 more
doaj   +1 more source

The effect of lubricant viscosity on the performance of full ceramic ball bearings

open access: yesMaterials Research Express, 2022
As a new high-end bearing product, full ceramic ball bearings are favoured in a variety. However, there have been few studies on the lubrication of full ceramic ball bearings.
Jian Sun   +8 more
doaj   +1 more source

ANALYSIS OF DISTRIBUTED DEFECT ON OUTER RING OF BALL BEARING UNDER RADIAL LOAD: A THEORETICAL AND EXPERIMENTAL APPROACH [PDF]

open access: yesJournal of Engineering Science and Technology, 2018
The paper reports development of a theoretical model to study vibration characteristics of the ball bearing. The Lagrangian method is adopted to analyse vibrations generated due to circumferential motions of the ball as well as its contact with an inner ...
SHAM S. KULKARNI, ANAND K. BEWOOR
doaj  

Fault Detection in Ball Bearings

open access: yesCoRR, 2022
Ball bearing joints are a critical component in all rotating machinery, and detecting and locating faults in these joints is a significant problem in industry and research. Intelligent fault detection (IFD) is the process of applying machine learning and other statistical methods to monitor the health states of machines.
Joshua Pickard, Sarah Moll
openaire   +2 more sources

Starved lubrication analysis of angular contact ball bearing based on a multi-degree-of-freedom tribo-dynamic model

open access: yesFriction, 2023
When the oil supply is not adequate to maintain the ideal lubrication, angular contact ball bearing will enter into the starved lubrication regime resulting in the potential performance degradation and consequently the severe failures.
Chengwei Wen   +5 more
doaj   +1 more source

Are Buckminsterfullerenes Molecular Ball Bearings? [PDF]

open access: yesThe Journal of Physical Chemistry B, 2018
Buckminsterfullerenes (C60) are near-spherical molecules, which freely rotate at room temperature in the solid state and when dissolved in solution. An intriguing question arises as to whether C60 molecules can act as "molecular ball bearings," that is, preventing direct contact between two solid surfaces while simultaneously dissipating shear stress ...
Romain Lhermerout   +4 more
openaire   +3 more sources

Cage stability of ball bearings under variable working conditions

open access: yes工程科学学报, 2019
The momentum wheel is a key device used for orbiting satellite attitude control. Its controlling accuracy is strongly influenced by the cage stability of the ball bearings in momentum wheels.
Zhi-qiang ZHANG   +4 more
doaj   +1 more source

Numerical simulation of ball bearing flow field using the moving particle semi-implicit method

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
The distribution of lubricating oil in the bearing cavity is of great significance to bearing lubrication and cooling. A new idea is provided to further study the ball bearings lubrication, to achieve effective lubrication of bearings.
Wei Wu, Chunhui Wei, Shihua Yuan
doaj   +1 more source

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