30-08-2013, 02:58 PM
BELT DRIVES
BELT DRIVES.ppt (Size: 294.5 KB / Downloads: 78)
Functions of belts
Transmit motion between shafts that are located at a considerable distance from each other
They are not used for exact fixed speed ratio
slipping
They are very flexible
distance or
the angle between the two shafts.
Selection of V-Belts
Power to be transmitted
Speed of the small or large pulley
Speed ratio
Field of application.
Approximate distance between the centres of the two pulleys
Steps of V-belts Selection:
Determine the service factor Based application, table (5.2).
Obtain the design power from the equation:
Design power = transmitted power x service factor
Select a suitable belt size from fig.(5.3)
BELT DRIVES.ppt (Size: 294.5 KB / Downloads: 78)
Functions of belts
Transmit motion between shafts that are located at a considerable distance from each other
They are not used for exact fixed speed ratio
slipping
They are very flexible
distance or
the angle between the two shafts.
Selection of V-Belts
Power to be transmitted
Speed of the small or large pulley
Speed ratio
Field of application.
Approximate distance between the centres of the two pulleys
Steps of V-belts Selection:
Determine the service factor Based application, table (5.2).
Obtain the design power from the equation:
Design power = transmitted power x service factor
Select a suitable belt size from fig.(5.3)