Results 11 to 20 of about 214,766 (298)
Analysis of bearings behaviour with cylindrical rollers with variable center of gravity
MATEC Web of Conferences, 2017 This paper consists in analysis of the contact stress and deformations appeared to the cylindrical rollers with variable center of gravity who equips large bearings, with finite elements method.
Barabas Sorin, Florescu Adriana
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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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Journal of Materials Research and TechnologyTo address the issue of rapid wear and loss of shape accuracy in traditional both-sides lapping plates, which limits the further application of both-sides machining for high-precision cylindrical rollers, an extremely high precision and consistent ...
Tianchen Zhao +6 more
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Design algorithm for generatrix profile of cylindrical crowned rollers [PDF]
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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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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Dynamic Analysis and Design of Cylindrical Roller Bearings with Arc End Surfaces of Rollers
MachinesThe new contact model for arc end surfaces of rollers and flanges is established in a dynamic model for cylindrical roller bearings. The dynamic behaviors between roller arc end surfaces and flanges, i.e., contact pressures, sliding velocities, and PV ...
Maokuan Bao, Liqin Wang, Chuanwei Zhang
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Engineering ProceedingsThe safe transport of cylindrical loads such as metal, paper, or polymer rollers requires specialized securing structures that address the complex dynamic forces encountered during rail movement.
Plamen Kasabov, Marian Kalestrov
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Lubricants, 2023 Tapered roller bearings (TRBs) are widely used in heavy-load rotating machinery. One of the technical problems in TRBs is the existence of sharp spikes of the contact pressure in the vicinity of the two ends of the tapered rollers.
Renshui Cao +4 more
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Experimental study on polishing process of cylindrical roller bearings
Measurement + Control, 2019 The surface quality and accuracy of the geometry of the cylindrical rollers are important factors for bearing life. This paper presents effects of machining parameters on the surface roughness, topography and roundness of cylindrical rollers through the ...
Duc Nam Nguyen +4 more
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Engineering Applications of Computational Fluid Mechanics, 2020 This paper presents a study to investigate the effects of the shape of rollers in high precision enveloping speed reducer on the reducer’s lubrication performance. Theoretical models for the precision speed reducer with cylindrical and conical rollers as
Xingqiao Deng +3 more
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