This document discusses different types of belt and rope drives used to transmit power between shafts. Flexible drives like belts, ropes, and chains are used when the distance between shafts is large, while gears are used for shorter distances. The document describes various belts like flat belts, V-belts, and circular belts made of different materials. It also outlines different belt drive configurations including open, crossed, compound, and stepped pulley drives that use idler pulleys to change the direction of power transmission.

1. BELT AND ROPE
DRIVES

2. • Power can be transmitted from one shaft to
another shaft either by flexible or non flexible type
of machine elements.
• Flexible : belts, ropes and chains
• Non flexible: cam, gears, clutches, coupling
• When the distance between the shaft is large, then
belt, ropes or chain are used.
• For smaller distance gear are used

3. CLASSIFICATION OF DRIVES

4. TYPES OF BELTS
• Flat belt
• V- belt
• Ropes (or circular belts)

5. FLAT BELT

6. V- BELT

7. ROPES (OR CIRCULAR BELTS)

8. BELT MATERIALS

9. TYPES OF BELT DRIVES

10. OPEN BELT DRIVE

11. CROSSED OR TWISTED BELT DRIVE

12. COMPOUND BELT DRIVE

13. OPEN BELT DRIVE WITH SINGLE
IDLER PULLEYS

14. OPEN BELT DRIVE WITH MANY
IDLER PULLEYS

15. QUARTER TWIST DRIVE

16. QUARTER TWIST DRIVE WITH
GUIDE PULLEY

17. ANGULAR INTERSECTING BELT
DRIVE

18. STEPPED PULLEY DRIVE

19. FAST AND LOOSE PULLEY DRIVE