Results 21 to 30 of about 1,189 (163)
Surface quality of double-sided grinding Si3N4cylindrical rollers
Jin'gangshi yu moliao moju gongcheng, 2023 In order to obtain the optimal process parameter combination of double-sided grinding Si3N4 cylindrical rollers, the orthogonal experiment method was used to explore the influences of the grinding disc speeds, the grinding pressures and the basic ...
Heli HUANG +5 more
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Optimization experiment on eccentric lapping of cylindrical rollers
Nanotechnology and Precision Engineering, 2018 Cylindrical rollers are important elements of bearings, and their machining accuracy and consistency affect the bearing quality. Using a GCr15 cylindrical roller of Ф11 × 12 as the processing object in this study, the effects of loading pressure ...
Jia Su +3 more
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Failure Analysis of a Cylindrical Roller Bearing Caused by Excessive Tightening Axial Force
Machines, 2022 The premature failure of a cylindrical roller bearing took place during service, with a total operation time of 100 h. The failure cause was analyzed by macroscopic and microscopic observation, metallographic analysis, hardness testing, tightening axial ...
Xueqin Hou +5 more
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MachinesDue to their small size and light mass, small precision cylindrical rollers present challenges in dynamic unbalance detection, including difficulties in measurement and the risk of surface damage.
Zhuangya Zhang +5 more
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Experimental Study on the Skidding Damage of a Cylindrical Roller Bearing [PDF]
Materials, 2020 As large-scale rotating machines develop toward high rotating speed and high power–weight ratio, skidding damage has become one of the major initial failure modes of cylindrical roller bearings. Therefore, understanding the skidding damage law is an effective way to ensure the safety of machines supported by cylindrical roller bearings.
Zhang, Qing +4 more
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Optimizing Size Consistency in Batch Roller Production: A Mixed Strategy Approach
Applied Sciences, 2023 The Double-Disk Straight Groove Lapping (DDSGL) technique, a novel approach to batch processing of bearing rollers, achieves high dimensional consistency by removing material through size comparison between multiple rollers in the processing area.
Weifeng Liu, Chengzu Ren
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Journal of Materials Research and TechnologyThe Si3N4 ceramic cylindrical rollers serve as the rolling elements of precision bearings, exhibiting excellent material properties such as high hardness, good resistances of wear, high temperature and corrosion.
Fenfen Zhou +4 more
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Design algorithm for generatrix profile of cylindrical crowned rollers
MATEC Web of Conferences, 2017 The cross-section of roller profile controls the pressure distribution in the contact area and radically affects the roller bearings basic dynamic load rating and rating lives.
Creţu Spiridon
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The optimisation of the cylinder-spiral soil-cultivating roller [PDF]
E3S Web of Conferences, 2020 Designed cylinder-tillage spiral skating rink with spiral work items, which form a fine lumpy structure of the sowing layer of soil with grain size corresponding to agrotechnical requirements, while helping the soil surface, mulching the top layer of ...
Sharonov Ivan +3 more
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Research on Roller Skew Characteristics of Cylindrical Roller Bearings Based on ANSYS/LS‑DYNA
Nanjing Hangkong Hangtian Daxue XuebaoDuring the high-speed operation of cylindrical roller bearings， there is a certain deflection angle between the contact line of the rollers and raceways and the bearing rotation axis.
MA Chenfei +4 more
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