Development, Designing and Testing of a New Test Rig for Studying Innovative Polycrystalline Diamond Bearings

Cascino, Alessio and Amedei, Andrea and Meli, Enrico and Rindi, Andrea (2024) Development, Designing and Testing of a New Test Rig for Studying Innovative Polycrystalline Diamond Bearings. Eng, 5 (3). pp. 1615-1640. ISSN 2673-4117

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Abstract

This paper reports the preliminary experimental studies carried out on an innovative sliding bearing made of polycrystalline diamond, a material with excellent mechanical and chemical characteristics, used mainly in the drilling industry. Bearings crafted from this material do not necessitate lubrication due to their extremely low coefficient of friction and high resistance to wear. For this reason, they are prime candidates for replacing traditional oil bearings, eliminating the need for auxiliary systems and thereby reducing environmental risks. In this regard, an innovative test rig was designed, capable of reaching speeds up to 6000 rpm both in vertical and horizontal configurations thanks to a novel tilting frame. Moreover, with a high modularity it was possible to test three different kinds of radial PCD bearings. Dynamic data were acquired and elaborated to evaluate orbits, acceleration and absorbed torque, to finally compare these different configurations to better understand how dynamic behavior is influenced by bearings’ geometrical characteristics.

Item Type: Article
Subjects: Institute Archives > Engineering
Depositing User: Managing Editor
Date Deposited: 26 Jul 2024 07:38
Last Modified: 26 Jul 2024 07:38
URI: http://eprint.subtopublish.com/id/eprint/4410

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