Module 3 - Design of Mechanical Elements
Chapter 11: Roller Element Bearings
Chapter 11 Overview
Chapter 11 covers the following key concepts:
- Bearing types
- Relating bearing load, life, and reliability
- Combined radial and thrust loading
Lecture 19A
In case you missed it, here's a video of the first part of Lecture 19. In this video, we explore the fundamentals of bearings.
Lecture 19B
In case you missed it, here's a video of the second part of Lecture 19. In this video, we look at contact stresses using the Hertzian model.
Lecture 19C
In case you missed it, here's a video of the third part of Lecture 19. In this video, we break down bearing life calculations and how to use manufacturer catalog ratings.
Lecture 19 Tasks
In this lecture, we will explore roller element bearings, including how to utilize manufacturer catalogs to select bearings for specific applications.
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Read
- Sections 3.19, 6.18 and 11.1-11.5 of Shigley's Mechanical Engineering Design.
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Watch
- These videos to see how rolling element bearings are made:
- Spherical roller bearings: How are they made? - by SKF Group
- How it is made big size roller bearings - by MTK Bearings
- An example homework problem worked solution:
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Practice
- Try taking Practice In-Class Quiz 6, to prepare for Thursday's In-Class Quiz.
- And here's the Practice In-Class Quiz 6 Appendix.
- After you're done, see how you did by comparing your answers to the Practice In-Class Quiz 6 Solution.
- Problems 3-151, 3-154, 11-8 and 11-10 from Shigley's Mechanical Engineering Design, and then review the solutions posted.
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Complete
- Lecture 19 Quiz, due Thursday, April 3 at 11:59 PM.
Lecture 19 Notes
- Lecture 19(A) Notes[pdf]
- Lecture 19(B) Notes[pdf]
- Lecture 19 - Contact Stress and Bearings[pdf]
- Lecture 19 - Contact Stress and Bearings (INSTRUCTOR)[pdf]
Lecture 20A
In case you missed it, here's a video of the first part of Lecture 20. In this video, we learn how to calculate bearing life when both radial and axial loads are present.
Lecture 20B
In case you missed it, here's a video of the second part of Lecture 20. In this video, we explore how bearing dimensions are standardized using ISO and ABMA designation systems.
Lecture 20 Tasks
In this lecture, we will continue exploring roller element bearings, with a focus on handling applications that involve combined axial and radial loading. We will also have In-Class Quiz 6.
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Read
- Section 11.6 of Shigley's Mechanical Engineering Design.
- Take a look at some bearings available on SKF's website.
- A problem solving video: Example 11-4
- Take a look at some bearings available on SKF's website.