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Gears

Good Essays

RESEARCH PAPER

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 …show more content…

The curve is generally used as the profile of gear teeth. The top land is the top surface of the tooth, and the bottom land is the surface of the gear between the fillets of adjacent teeth. The lead is the distance a helical gear or worm would thread along its axis one revolution of it were free to move axially. The length of action is the distance on an involute line of action through which the point of contact moves during the action of the tooth profile. The line of action on the other hand is the path of contact in involute gears. It is a straight line passing through the pitch point and the tangent to the base circles. The module is the ratio of pitch diameter in millimeter to the number of teeth. In English module, it is the ratio of the pitch diameter in inches to the number of teeth. The normal plane is the plane normal to the tooth surface at a point of contact, and perpendicular to the pitch plane. The outside diameter is the diameter of the outside circle. The pitch is the distance between similar, equally spaced tooth surfaces, in a given direction and along a given curve or line. The pitch circle is a circle the radius of which is equal to the distance from the gear axis to the pitch point. The pitch diameter is the diameter of the pitch circle. The pitch plane in a pair of gears, it is the plane perpendicular to the axial plane and tangent to the pitch surfaces. The point of tangency of two pitch circles and is on the line of

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