EMD 223 Machine Component Design Dr. Feizal Yusof ME – USM Room 3.22 ext 6316

Presentation outline Introduction to Gear system – Spur gear – Helical gear – Bevel gear – Worm gear Gear Manufacturing Kinematics of Gear Gear selection Strength of gear teeth

Classification of gears

Spur gears

Helical gears

Herringbone gears

Internal gears

Rack and pinion

Straight bevel gear

Spiral bevel gears

Hypoid bevel gears

Worm gears

Spiral gears

Summary of gear types and eval.

Law of gearing

Kinematics of gear

Gear meshing

more Kinematics

More Kinematics

Test your understanding!

solutions

Thank You – 24/2

Reference Juvinall and Marshek “Fundamentals of machine component design” Wiley International, 4 th Edition Spotts, M. F., Shoup, T. E., (1998) “Design of machine elements” 7 th ed, Prentice Hall, NJ. Open University UK Podcasts (2010)- Design and designing course. Shigley, J.E. Mischke, C.R. and Budynas, R.G., (2003) “Mechanical Engineering Design”, eds., McGraw Hill. Collins, J.A., (2003) “Mechanical Design of machine elements and machines” Intl. eds, Wiley. Hamrock, B.J., Schmid, S.R., Jacobson, B., (2005) “Fundamentals of Machine Elements” 2 nd eds, McGraw-Hill. of-mobile-phone.aspx of-mobile-phone.aspx