MEC 410 Chapter 14 Spring 2018(2).pdf

# MEC 410 Chapter 14 Spring 2018(2).pdf - MEC 410 Design of...

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1 3/26/2018 MEC 410 Design of Machine Elements Spring 2018 Chapter 14 Jay Mendelson Lecturer Mechanical Engineering Department [email protected] Normal office hours 2:15PM 4PM Monday and Wednesday 171 Light Engineering

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2 Reading: Chapter 14 in “Machine Elements in Mechanical Design” 5 th Edition Homework Problems: 14-1, 14-9, 14-11, and 14-18 (as applied to figure P12-3 used in homework problem 12-24. (Assume machine life of 20,000 hours to calculate bearing revolutions) Note: If you did not get homework problem 12-24 fully correct, it will be better to start with the homework answer key for 12-24 Open ended homework problem: go to www.skf.com and find a spherical roller bearing that would be acceptable for bearing D of shaft 2 of homework problem 12-35 (see Figure P12-35). Then specify the part number, along with the specs of the spherical bearing you found. Assume machine life of 20,000 hours to calculate bearing revolutions. Download the catalogue per this link and go to chapter 8 of the brochure: http://www.skf.com/us/knowledge-centre/media- library/index.html#tcm: 12-121486 3/26/2018 MEC 410: Chapter 14: Bearings
3 Chapter 14 lecture is recorded on Youtube. Go to this web link: https://youtu.be/ZwQbSV-AIPs 3/26/2018 MEC 410: Chapter 12: Design of Shafts

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4 Chapters 7,8, 9, 10, 11 and 12 discussed how to specify pulleys, sprockets, gears, attach them to shafts, and then design the shafts Chapter 14 will discuss how to support the forces on the shafts with bearings Video on bearings to watch: h ttps://www.youtube.com/watch?v=dg8b5e1LtXg 3/26/2018 MEC 410 Chapter 14: Bearings Image source: znlbearings.com