Α Study on the Possibility of Replacing Roller Bearings in CM 120L Concrete Mixers with Necuron 1050 Sliding Bearings
Received: Received: 31 October 2024 | Revised: 20 November 2024 | Accepted: 26 November 2024 | Online: 8 December 2024
Corresponding author: Dragos Gabriel Zisopol
Abstract
This paper presents the results of the study on the possibility of replacing the roller bearings of CM 120L concrete mixers with sliding bearings made of Necuron 1050. In order to carry out the study, the radial stresses located in planes normal to the axis of symmetry of a sliding bearing in the cantilever of the material Necuron 1050, were determined using two analytical methods, the finite element method and the electro-resistive tensometry method. An experimental stand was constructed to determine the mechanical and tribological characteristics of the sliding bearings in static and dynamic regimes. The difference between the maximum stress values determined by the two analytical methods is 1.057 MPa, and the difference between the results obtained by Finite Element Analysis (FEA) for static and dynamic stress is 3.093 MPa. The results of the study show that it is recommended to replace a roller bearing with a sliding bearing made of Necuron 1050 polyurethane material.
Keywords:
sliding bearings, roller bearings, polyurethane, experimental standDownloads
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Copyright (c) 2024 Mirela Romanet, Dragos Gabriel Zisopol, Mihail Bogdan Roth, Dragos Valentin Iacob
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