The document discusses various components of vehicle transmission systems including clutches, gearboxes, axles, and driveshafts. It describes 10 types of clutches including friction, centrifugal, positive, and electromagnetic clutches. It outlines 3 types of manual gearboxes and notes automatic gearboxes can be hydromatic or use a torque converter. The document also briefly mentions rear axle configurations, including semi-floating, full-floating, and three-quarter floating axles, as well as Hotchkiss and torque tube rear axle drives.

1. UNIT-III
TRANSMISSION SYSTEMS

2. CLUTCH
Characteristics of a clutch
• Transmission of torque
• Gradual engagement
• Dissipation of heat
• Dynamic balancing
• Vibration damping
• Size of the clutch
• Free pedal clutch play
• Non-exertive operation of disengagement

4. TYPES OF CLUTCH
1. Friction clutch
a) single plate clutch
b)Multi plate clutch
• Wet type
• Dry type
c) cone clutch
2. Centrifugal clutch
3. Semi centrifugal clutch
4. Coil pressure spring clutch
5. Conical spring clutch or diaphragm clutch
a) Tapered
b) Crown spring
6. Positive clutch- dog and spline clutch
7. Hydraulic clutch
8. Vacuum clutch
9. Electromagnetic clutch
10. Over running clutch

5. Single plate clutch

7. MULTI PLATE CLUTCH

8. WET TYPE CLUTCH

9. CONE CLUTCH

10. CENTRIFUGAL CLUTCH

11. SEMI CENTRIFUGAL CLUTCH

12. POSITIVE CLUTCH OR DOG AND SPLINE
CLUTCH

13. HYDRAULIC CLUTCH

14. ELECTROMAGNETIC CLUTCH

15. GEAR BOX
TYPES OF GEAR BOX
1.Manual transmission
a) Sliding mesh gearbox
b) Constant mesh gear box
c) Synchromesh gear box
2. Epicyclic gear box
3. Automatic gear box
a) Hydromatic gear box
b) Toque converter gear box

16. Sliding mesh gear box

17. Constant mesh gear box

18. Synchromesh gear box

19. AUTOMATIC GEARBOX
HYDROMATIC TRANSMISSION

20. SHIFT OR SELECTOR MECHANISM
(a) FLOOR MOUNTED SHIFT MECHANISM

21. (b) MECHANISM WITH GEAR LEVER AS STEERING
COLUMN

22. OVERDRIVE MECHANISM

23. TRANSFER BOX

24. FLUID FLYWHEEL

25. TORQUE CONVERTER

27. UNIVERSAL JOINTS

28. PROPELLER SHAFT

31. TYPES OF REAR AXLES
(i) SEMI FLOATING AXLE

32. (ii)FULL FLOATING AXLE

33. (iii) THREE QUARTER FLOATING AXLE

34. REAR AXLE DRIVES
(i) HOTCHKISS DRIVE

35. (ii) TORQUE TUBE DRIVE