Highly praised 4th edition! New items and insights added. Detailed explanations of theory, experimental conditions/results/graphs/photos, discussions, and countermeasures in 200+ slides.
Rolling bearings are sometimes referred to as the "rice of machines," analogous to the Japanese diet, and they are essential mechanical components in constructing mechanical systems. In mechanical design, selecting rolling bearings according to the specifications of the machinery is part of the job, but failing to understand the fundamental principles can lead to significant mistakes. Recently, as the control of motor rotation speed using inverters has become widespread, electrical corrosion has also been observed in household appliances. Electrical corrosion is not a form of mechanical damage. Moreover, the design of rolling bearings should not allow electricity to flow internally, so when electrical corrosion occurs, the cause is often unclear. This seminar will explain the conditions under which electrical corrosion occurs, the observation of the ridge mark growth process, and methods to prevent electrical corrosion. A seminar specifically focused on electrical corrosion in rolling bearings is rare, and I hope to make it a meaningful experience for all participants.
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Date and Time: 2021/08/30 (Mon) 13:00 - 16:30 [WEB Exclusive Seminar] *You can attend the seminar from home or while at work. [Program] 1. Conditions for the occurrence of electrical corrosion in rolling bearings 1.1 Current density for electrical corrosion in direct current 1.2 Voltage for electrical corrosion in direct current 2. Conditions for ridge mark formation and growth observation 2.1 Relationship between electrical corrosion damage and oil film parameters 2.1.1 When changing rotational speed 2.1.2 When changing surface roughness 2.1.3 When changing grease base oil viscosity 2.1.4 Conditions for ridge mark formation 2.1.5 Observation of the ridge mark formation process using thrust ball bearings 2.1.6 Clarification of the relationship between ridge mark growth and vibration increase using thrust ball bearings 2.1.7 Observation of ridge mark formation using a three-cylinder test apparatus (electrical corrosion basic testing machine) 3. Research on electrical corrosion prevention 3.1 Conductive grease 3.2 Ceramic rolling elements 3.3 Method of using conductive grease as a bypass 4. Electrical corrosion in high-pressure high-frequency environments
Price information
45,100 yen (including tax) *Includes materials *For those who do not wish to receive email notifications, the tuition fee is "45,100 yen × number of participants" *For those who wish to receive email notifications (free of charge): ★If applying as 1 person, 39,600 yen ★If applying for 2 people at the same time, 45,100 yen for 2 people (the second person is free) ★If applying for 3 people at the same time, 66,000 yen for 3 people ★If applying for 4 or more people at the same time, the tuition fee for 3 people + (number of people exceeding 3) × 19,800 yen *Applications for 2 or more people at the same time are limited to the same corporation. *For 2 or more participants, a separate application is required for each participant.
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P2
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【Target Audience】 - Prerequisites for Participation No specific prior knowledge is required if there is practical experience. - Industries, Departments, Levels, etc. Targeted for Participation Machinery industry using rolling bearings, new employees at motor manufacturers, mid-level engineers. 【What You Will Learn】 Electrolytic characteristics and prevention techniques for electrolysis in rolling bearings.
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S&T Publishing publishes technical books aimed at researchers and engineers.