Arched-outer-race Ball-bearing Analysis Considering Centrifugal Forces
Arched-outer-race Ball-bearing Analysis Considering Centrifugal Forces

Author: Bernard J. Hamrock

Publisher:

Published: 1972

Total Pages: 44

ISBN-13:

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A first-order thrust load analysis that considers centrifugal forces but which neglects gyroscopics, elastohydrodynamics, and thermal effects was performed. The analysis was applied to a 150-mm-bore angular-contact ball bearing. Fatigue life, contact loads, and contact angles are shown for conventional and arched bearings. The results indicate that an arched bearing is highly desirable for high-speed applications. In particular, at an applied load of 4448 n (1000 lb) and a DN value of 3 million (20,000 rpm) the arched bearing shows an improvement in life of 306 percent over that of a conventional bearing.

Rolling Bearing Tribology
Rolling Bearing Tribology

Author: Gary L. Doll

Publisher: Elsevier

Published: 2022-08-20

Total Pages: 292

ISBN-13: 0128221747

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Rolling Bearing Tribology: Tribology and Failure Modes of Rolling Element Bearings discusses these machine elements that are used to accommodate motion on or about shafts in mechanical systems, with ball bearings, cylindrical roller bearings, spherical roller bearings, and tapered roller bearings reviewed. Each bearing type experiences different kinds of motion and forces with their respective raceway, retainers and guiding flanges. The material in this book identifies the tribology of the major bearing types and how that tribology depends upon materials, surfaces and lubrication. In addition, the book describes the best practices to mitigate common failure modes of rolling element bearings. - Discusses important tribological implications surrounding the performance and durability of rolling element bearings - Describes how the different types of roller bearings work - Explores the reasons behind the failure of roller bearings and presents information on how to mitigate those failures

Fundamentals of Fluid Film Lubrication
Fundamentals of Fluid Film Lubrication

Author: Bernard J. Hamrock

Publisher: CRC Press

Published: 2004-03-15

Total Pages: 736

ISBN-13: 9780203021187

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Specifically focusing on fluid film, hydrodynamic, and elastohydrodynamic lubrication, this edition studies the most important principles of fluid film lubrication for the correct design of bearings, gears, and rolling operations, and for the prevention of friction and wear in engineering designs. It explains various theories, procedures, and equations for improved solutions to machining challenges. Providing more than 1120 display equations and an introductory section in each chapter, Fundamentals of Fluid Film Lubrication, Second Edition facilitates the analysis of any machine element that uses fluid film lubrication and strengthens understanding of critical design concepts.