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		V. Ryan © 2001-2004
		The section is aimed at introducing pupils to basic concepts of gears and pulleys. Areas covered include spur gears, compound gears, chain drive, rack / pinion systems and pulley systems.  Click on the aspect of gears/pulleys outlined below to view the information sheets.

1. Spur Gears and Simple Gear Trains.

2. More Detail Regarding Gears

3. Gear Trains, Idlers and drawing gears

4. Compound Gears

5. Rack and Pinion Gear Systems

6. Rack and Pinion Example

7. Bevel Gears

8. Gear Ratios (Velocity Ratio) - The Basics

9. Gear Wheels (Sprockets) and Chains

10. Worms and Wormwheels

11. Gears - A Practical Exercise

12. Gear Models - Simple Gear Trains

13. Gear Models - Rack and Pinion

PULLEY SYSTEMS

1. Pulley Systems - General Introduction

2. Pulley Systems - Velocity Ratio and RPM - 1

3. Pulley Systems - Velocity Ratio and RPM - 2

4. Pulley Systems - Velocity Ratio and RPM - 3

5. Pulley Systems - Reversing Direction of Rotation

6. Pulleys and Lifting - Important Formulas

7. Pulleys and Lifting -1

8. Pulleys and Lifting - 2

9. Pulleys and Lifting - 3

10. Pulleys and Lifting - 4

11. Pulleys and Lifting - 5

12. Pulleys and Lifting - Exam Question

SAMPLE QUESTIONS

1. Working Out Gear Ratio (Velocity Ratio)

2. Working Out Revolutions Per Minute (RPM)

3. Working Out Ratio and RPM of Systems Composed of Three Gears

4. Working out the RPM of Compound Gears

5. Rack and Pinion Question

6. Gear Train (including compound gear)

7. Worm Gear Exam Question

8. Rack and Pinion Examination Question - Steering System

9. Sample Answer - Steering System

10. Rack and Pinion Examination Question - Fork Lift Truck

11. Sample Answer - Fork Lift Truck

12. Pulley /Gear Examination Question

13. Pulley / Circuit / Switches Examination Question

14. Gears Examination Questions - 1

15. Gears Examinations Questions - 2

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