Submitted To:
Miss Analyn P. Apsay, MAEd
Instructor
Submitted By:
Jojie B. Gallo BSME3
TABLE OF CONTENTS
Topic Outline 1.
Introduction (Gear terminologies, definitions and identifying the parts) (Identifying the types of gears) (Gear applications or uses) 2.
Body (History of gears) (Gear calculations or formula) (Materials for manufacturing gears) 3.
Conclusion (Advantages of gears in the industry) (Advantages of gears compare to other drive mechanism) 4.
References 5.
Thesis Statement: Gears are important in the mechanical fields and industries
I. Introduction
A. Definition of gear and its principal parts
B. Identifying the types of gears
C. Gear applications
II. History of Gear
A. The beginning of gears in human works
B. Law of gearing and calculations
C. Materials in manufacturing gear
III. Conclusion
A. Advantages of gear technology
B. Comparison with other drive mechanisms
I. Introduction Gears are the most common means of transmitting power in mechanical engineering. There are tiny gears for devices like wrist watches and there are large gears that some of you might have noticed in the movie like Titanic. Gears from vital elements of mechanisms in many machines such as vehicles, metal tooling machine tools, rolling mills, hoisting and transmitting machinery, marine engines, and the like. Toothed gears are used to change the speed, power, and direction between an input and output shaft. Gears have existed since the invention of rotating machinery. Because of their force-multiplying properties, early engineers used them for hoisting heavy loads such as building materials. Gears are composed of different parts that play an important role or purposes In order to operate from its work. This are: addendum which is the height of tooth above pitch circle or the distance between the pitch circle and the top of the tooth. The
References: J. Tordillo, Mechanical Engineering Formulas, “Gear”, p.46-3 to 46-8. McGraw Hill Encyclopedia of Science and Technology, "Gear", p. 742. Doughtie and Vallance, p. 290; McGraw Hill Encyclopedia of Science and Technology, "Gear", p. 743. American Gear Manufacturers Association; American National Standards Institute (2005), Gear Nomenclature, Definitions of Terms with Symbols (ANSI/AGMA 1012-F90 ed.), American Gear Manufacturers Association, ISBN 9781555898465. McGraw-Hill (2007), McGraw-Hill Encyclopedia of Science and Technology (10th ed.), McGraw-Hill Professional, ISBN 978-0071441438. Norton, Robert L. (2004), Design of Machinery (3rd ed.), McGraw-Hill Professional, ISBN 9780071214964. http://nptel.iitm.ac.in/courses/IIT-MADRAS/Machine_Design_II/pdf/2_1.pdf http://www.gearinfo.com/