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Maheedhara Reddy, G.
- Experimental and Theoretical Investigations of Heat Generation in Radial Ball Bearing
Abstract Views :197 |
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Authors
Affiliations
1 Department of Mechanical Engineering, N.B.K.R. Institute of Science & Technology, Vidyanagar, IN
2 Department of Mechanical Engineering, S.V. University, Tirupati
1 Department of Mechanical Engineering, N.B.K.R. Institute of Science & Technology, Vidyanagar, IN
2 Department of Mechanical Engineering, S.V. University, Tirupati
Source
Manufacturing Technology Today, Vol 18, No 2 (2019), Pagination: 3-17Abstract
The usefulness of a radial ball bearing (RBB) is to support radial loads and to reduce the rotational friction. However, during its operating conditions, an unanticipated and vicious heating of balls in radial ball bearing takes place which results in degradation of its performance as well as accuracy. For this reason, it is important to calculate the heat generation in the bearings because if generated heat is not dissipated from the bearing surface, causes a temperature rise in inner race and gives rise to premature failure. In the present work, experimentally, heat generation is calculated by varying the bearing failure parameters such as external load, load position, and rotational speed. Furthermore, a theoretical model for estimation of heat generation in the radial ball bearing is proposed. Later, a correlation between the experimental and theoretical model is carried out. Ultimately, the proposed model reveals that it demonstrates better in estimating heat generation up to 0.45 m of load position without cooling condition. On the other hand, the predicted heat generation above 1.8 N of the external load has a minimal deviation with experimental values at with cooling condition. A better agreement observed between experimental results and the theoretical model.Keywords
RBB, Heat Generation, External Load, Load Position.References
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- Mitrovic RM, Atanasovska ID, Soldat ND, Momcilovic DB. Effects of operation temperature on thermal expansion and main parameters of radial ball bearings. Thermal Science. 2015; 19 (5):1835-1844.
- Dong Y, Zhou Z, Liu Z, Zheng K. Temperature field measurement of spindle ball bearing under radial force based on fiber Bragg grating sensors. Advances in Mechanical Engineering. 2015; 7(12):1–6.
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- Advancement of Model for Examination of Temperature Impact in Radial Ball Bearing Utilizing Grid Technique for Damm Investigation
Abstract Views :278 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, N.B.K.R.I.S.T., Vidyanagar, Nellore, Andhra Pradesh, IN
2 Department of Mechanical Engineering, S V University, Tirupati, Andhra Pradesh, IN
1 Department of Mechanical Engineering, N.B.K.R.I.S.T., Vidyanagar, Nellore, Andhra Pradesh, IN
2 Department of Mechanical Engineering, S V University, Tirupati, Andhra Pradesh, IN
Source
Manufacturing Technology Today, Vol 18, No 12 (2019), Pagination: 25-34Abstract
The main objective of the paper on Radial Ball Bearing (RBB) to lessen the warmth age on bearing surface and bolster spiral and hub stacking and it can stay away from the warmth age by grating, the wear and force misfortunes brought about by the relative movement between the metal materials. Warmth is produced by the heap position in the bearing framework, which cause the temperature expanding inside the bearing surface and expanded temperatures may offer ascent to untimely disappointments. Along these lines, it is essential to figure the temperature in the orientation because of burden position. Here a summed up model is created utilizing Dimensional Analysis of Matrix Method (DAMM) to assess dimensionless connection between’s the reaction and result parameters for the appraisal of warmth age on the bearing surface on a created test rig. Reaction Surface Methodology (RSM) is utilized for the experimentation and investigate the reliance of different factors on the warmth age of these course. A numerical investigation created in the examination demonstrated the viability of DAMM model along side the adequacy of burden position for location of warmth age on spiral metal roller surface.Keywords
RBB, DAMM, RSM, Load Position.References
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- Li, W; Tan, QC: Thermal Characteristic Analysis and Experimental Study of a Spindle-Bearing System, 'Entropy', 2016, vol. 18, no. 7, 271, 1-25