Shaft Driven Motor Cycle

Contents

1. Introduction ................................................................................06

2. Types Of Power Transmission System ....................................09

Chain Drive...............................................................................10

Gear Drive................................................................................11

Pulleys & Belt Drive..................................................................13

3. Concept Of Shaft Driven Motorcycles .....................................16

Universal Joints........................................................................18

Shafts........................................................................................19

Gear Arrangement To Change Axis Of Rotation......................21

Bearings....................................................................................24

4. Shaft Driven Motorcycles ..........................................................28

System Arrangement................................................................29

Setup Explanation.....................................................................31

Working Of Universal Joint.................................................31

Working Of Bearing............................................................32

Working Of Shaft.............................................................33

Working Of Bevel Gear Arrangement.............................33

5. Advantages And Disadvantages ..............................................35

Advantages Of Shaft Driven Motor-Cycle.................................36

Probable Disadvantages...........................................................38

6. References ..................................................................................39

Chapter - 1

INTRODUCTION

INTRODUCTION

Power transmission is one of the most important aspects of any machine; a lot of thought is put in place before installing a particular type of a power transmission system in place. Different types of machines use different types of power transmission systems for the purpose. There are many different types of systems that are available, they are as follows:

Chain drive system

Belt drive system

Gear train

Shafts and axles

The power transmission being selected is selected based on the following criteria:

Amount of power to be transmitted

Max continuous period of operation

Safety factor

Expected efficiency

Maintenance costs

Service cycle etc.

When we talk of motor-cycles, the power transmission system that is used is generally a chain drive. Since decades we have seen chain drives (i.e. a chain and sprocket system) being used for the purpose of power transmission in case of motor cycles. So why not get a new system in place of the chain drive. So on analysing the types of power transmission systems, our group came up with the following particulars:

If we go on using the belt drive, then we see that as the amount of transmitted power is increased there is a lot of slippage taking place, there by resulting in power loss. And also maintenance cost in case of a belt is pretty high the only advantage being, that the belts are lighter in weight. Thus the advantage gained is not enough so as to gain an upper hand.

Then if we