Multidisciplinary Journal of Science and Technology

CHANGING THE RADIAL CLEARANCE IN BEARING ASSEMBLIES DEPENDING ON THE SIZE AND NUMBER OF ABRASIVE PARTICLES

SHAABIDOV SHORAKHMAT ASKAROVICH

1Doctor of Technical Sciences, Professor, Tashkent State Techical University Named After Islam Karimov

MIRZAEV KAKHRAMON KARSHIBOEVICH

2Doctor of Technical Sciences, Associate Professor, Tashkent State Techical University Named After Islam Karimov

MAMASOBIROV UMID MAMAZOKIROVICH

3PhD, Associate Professor, Tashkent State Techical University Named After Islam Karimov

XUSANBOEV AZIZBEK GULOMOVICH

3PhD, Associate Professor, Tashkent State Techical University Named After Islam Karimov

Keywords: bearing, wear, abrasive particle, radial clearance, strength, hardness, ball, inner (outer) ring.

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Abstract

Radial wear in bearing assemblies depends on the wear rate of bearing elements, and reducing their wear is one of the important engineering problems that does not lose its relevance over time and has various scientific approaches and directions. According to studies on the effect of changes in the size and amount of abrasive particles participating in the wear process on the wear rate of rolling bearing elements, abrasive particles, i.e. mechanical impurities, penetrate the working surfaces of the bearing and cause abrasive wear of the material. With an increase in the number of particles, the wear process accelerates, since more particles scratch and damage the working surfaces. At the same time, the size of the particles also affects the bearing elements. Small particles penetrate deeper into the bearing surfaces and cause microwear, while large particles cause surface scratches and cracks. As a result, the abrasive wear of the bearing elements leads to an increase in the radial clearance in the bearing.

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