HOW GEARS FUNCTIONS AND THEIR USES BASES

FUNCTION AND TYPES OF GEARS.

1. GEARS TYPES AND USES

2. INTRODUCTION A gear is a wheel with teeth, sometimes known as a cog, whose job is to transmit power from one machine's part to another in order to accelerate or decelerate speed, increase force or change the direction of a machine. To be able to work with this simple machine, at least two wheels must have their teeth locked into each other. Since teeth fit together, when on wheel turns, the other turns too.

3. USES OF GEARS They are used for: Changing the direction of rotation Increasing or decreasing the rotation speed Increasing force Keeping the rotation of two axis synchronized Measuring time Transmit power or energy from one shaft to another. Change the speed of shafts to either high or low speed Change the running direction of a shaft.

4. TYPES OF GEARS Spur gears: They are used for transmitting power/drive between parallel shafts. Bevel gears: These are used for transmitting power/drive between shaft at an angle. Bevel gears have conical cross sections to help them achieve their purpose. Rack and pinion gears: These are gears used for converting rotary motion of the pinion to linear motion of the rack.

5. SPUR GEARS

6. BEVEL GEARS

7. RACK AND PINION GEARS

8. GEARS When two gears mesh, one is the driver and the other becomes the driven. A gear is a driver gear because the power to drive the system is generated by it, while the other is the driven because it is only being driven and does not produce the power/energy.

9. VIDEO ON GEARS VIDEO

10. PROBLEMS ON GEARS 1. A bicycle has a front gear with 40 teeth and a rear gear with 20 teeth. If the cyclist is pedaling at a rate of 60 rotations per minute (rpm), calculate the speed of the bicycle. 2. In a car's transmission system, the gear ratio between the engine and the drive shaft is 3:1. If the engine is running at 3000 revolutions per minute (rpm), find the speed of the drive shaft.  

11. PROBLEMS ON GEARS 4. A conveyor belt system uses a gear train to transfer power. If the input gear has 30 teeth and the output gear has 60 teeth, and the input gear is rotating at 120 revolutions per minute (rpm), determine the speed of the output gear. 5. A clock mechanism uses gears to move the hour and minute hands. If the gear for the hour hand has 12 teeth and the gear for the minute hand has 60 teeth, find the gear ratio between them. 6. A motorbike's engine rotates at 5000 revolutions per minute (rpm). If the gear ratio between the engine and the rear wheel is 1:3, calculate the rotational speed of the rear wheel.

12. 7. A gearbox in a factory machine has an input gear with 24 teeth and an output gear with 48 teeth. If the input gear is rotating at 180 revolutions per minute (rpm), find the speed of the output gear.   8. In a gear system, the input gear has 10 teeth and the output gear has 40 teeth. If the input gear is rotating at 240 revolutions per minute (rpm), calculate the speed of the output gear.   9. A gear train in a crane has an input gear with 15 teeth and an output gear with 60 teeth. If the input gear is rotating at 300 revolutions per minute (rpm), determine the speed of the output gear.

13. 10. A water pump uses a gear system to increase efficiency. If the input gear has 18 teeth and the output gear has 72 teeth, and the input gear is rotating at 360 revolutions per minute (rpm), calculate the speed of the output gear.