Elements of Machine Design

I.     Course Prefix/Number: MEC 220

       Course Name: Elements of Machine Design

       Credits: 3 (3 lecture; 0 lab)

II.    Prerequisite


III.   Course (Catalog) Description

Course examines design of machine elements as affected by material properties, loading conditions, stresses, deformation and costs. Content includes failure analysis, shafts and couplings, clutches and brakes, mechanical fasteners and springs.

IV.   Learning Objectives

The course provides students with the basic background necessary for design of machine elements.  Specifically, students will learn how to select the size, geometry and material of machine elements to satisfy the prescribed loading conditions.

V.    Academic Integrity and Student Conduct

Students and employees at Oakton Community College are required to demonstrate academic integrity and follow Oakton's Code of Academic Conduct. This code prohibits:

• cheating,
• plagiarism (turning in work not written by you, or lacking proper citation),
• falsification and fabrication (lying or distorting the truth),
• helping others to cheat,
• unauthorized changes on official documents,
• pretending to be someone else or having someone else pretend to be you,
• making or accepting bribes, special favors, or threats, and
• any other behavior that violates academic integrity.

There are serious consequences to violations of the academic integrity policy. Oakton's policies and procedures provide students a fair hearing if a complaint is made against you. If you are found to have violated the policy, the minimum penalty is failure on the assignment and, a disciplinary record will be established and kept on file in the office of the Vice President for Student Affairs for a period of 3 years.

Please review the Code of Academic Conduct and the Code of Student Conduct, both located online at

VI.   Sequence of Topics

Jan.   23 Introduction and 1
Review of Mechanics and Strength 2
30 Review of Mechanics and Strength 2
Friction and Lubrication 3
Feb. 6 Bearings 4
13 Shaft Design and Seals 5
20 Fasteners, Couplings, Keys, Retaining Rings   6
Mar. 6 Belting 7
13 Chain Drives, Hoists, Conveyors, and Ropes 8
20 Spring Recess --
27 Brakes 9
Apr. 3 Clutches 10
17 Power Screws 11
24 Gears 12
May 1 Spring Design 14
8 Flywheels 15

VII.  Methods of Instruction

Instructions will consist of lecture and class discussions.

Course may be taught as face-to-face, hybrid or online course.

VIII. Course Practices Required

Course may be taught as face-to-face, hybrid or online course

  1. Attendance is mandatory.  Two unexcused absences will lessen the grade one level.
  2. Satisfactory completion of all assigned homework.
  3. Passing three examinations (a make-up will be given if medical reasons precluded taking the examination on the date scheduled).
  4. Student will study the assigned textbook materials, design and analyze various machine elements for prescribed loading conditions and make class presentations.

IX.   Instructional Materials

Note: Current textbook information for each course and section is available on Oakton's Schedule of Classes.

Machine Design by Robert H. Creamer, Third Edition, Addison-Wesley Publishing Company.

X.    Methods of Evaluating Student Progress

The evaluation process will consist of:

  1. Three examinations, each 100 points. (75% of grade)
  2. Eighty-six problems, each 10 points.   (25% of grade)

XI.   Other Course Information


  1. Assigned homework is required for the completion of the course.
  2. Homework must be submitted on the assigned due date.  Late homework will not be accepted.
  3. Solutions must be presented in a clear and orderly manner, with answers boxed in.  Homework lacking clarity or written on scrap paper, such as on the back of old memos, etc., will not be graded.
  4. Ten points of credit will be given for each problem, provided the solution is correct, including all steps used and presented in a clear and orderly manner.
2 3, 4, 7, 12, 15, 19, 26, 39
3 3. 4. 8. 11. 16. 22. 24
4 3. 8. 9. 10. 13. 15. 18
5 2, 4, 7, 11, 14, 17, 22, 28, 38, 41
6 3, 6, 8, 12, 16, 20, 23
7 2, 6, 8, 12, 14, 18
8 4, 8, 9, 13, 22
9 1, 3, 7, 9, 13, 15
10 3, 4, 5, 9, 11, 13, 16
11 3, 8, 13, 16, 18, 20
12 1, 4, 7, 14, 17
14 2, 6, 9, 16, 21, 24
15 2, 6, 14, 17, 24

If you have a documented learning, psychological, or physical disability you may be entitled to reasonable academic accommodations or services. To request accommodations or services, contact the Access and Disability Resource Center at the Des Plaines or Skokie campus. All students are expected to fulfill essential course requirements. The College will not waive any essential skill or requirement of a course or degree program.

Oakton Community College is committed to maintaining a campus environment emphasizing the dignity and worth of all members of the community, and complies with all federal and state Title IX requirements.

Resources and support for
  • pregnancy-related and parenting accommodations; and
  • victims of sexual misconduct
can be found at www.oakton.edu/title9/.

Resources and support for LGBTQ+ students can be found at www.oakton.edu/lgbtq.

Electronic video and/or audio recording is not permitted during class unless the student obtains written permission from the instructor. In cases where recordings are allowed, such content is restricted to personal use only. Any distribution of such recordings is strictly prohibited. Personal use is defined as use by an individual student for the purpose of studying or completing course assignments.

For students who have been approved for audio and/or video recording of lectures and other classroom activities as a reasonable accommodation by Oakton’s Access Disabilities Resource Center (ADRC), applicable federal law requires instructors to permit those recordings. Such recordings are also limited to personal use. Any distribution of such recordings is strictly prohibited.

Violation of this policy will result in disciplinary action through the Code of Student Conduct.