BY HASLAMUDDIN BIN LAHAMUDIN
4 DESIGNS OF ROLLER CHAIN SPROCKETS
Plain plate
Hub on one side
Plain plate sprockets
Flate sprockets.
No hub exrension
Hub on one side
Hub extension on one side
Hub on both side
Hub on both side
Hub extension on both side
Detachable hub
Detachable hub
Detachable bolt on hub attached to a plate
Sprocket Manufacture
Cast sprockets machined
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Have cut teeth
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The rim
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Hub face
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Bore
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Smaller sprockets > Generally cut from steel bar stock and are finished all over.
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Sprockets > Made from forgings /forged bars
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The extent of finishing > Depends on the particular specifications that are applicable
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Sprockets.> Made by welding a steel hub to a steel plate.
Sporcket Material
Large sprockets
Cast iron is commonly used.
Drives with large speed ratio
The teeth of the larger sprockets are subjected to a fewer chain engagements in a given time
Smaller sprockets
Cast steel or plate is preferred
Can be heat treated and hardened
Produce toughness for shock resistance and to resists wear.
Other sprockets type
Stainless steel or bronze
Corrosion resistance
For special application.
Keys and keys ways
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Attaching the pulleys to the rotating shafts to enable the drive elements to take place.
Function on a power transmission shaft
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Prevent the shaft from rotating in the bore
Enable power transmission through the torque
​Type of key
Torque shaft transmission
Flap drive mechanism
The combination of gearboxes and torque shaft transmits rotating power from a power drive to a location where the power is needed.
The components of a power transmission
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Power drive or power control unit
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Torque shafts/Transmission shafts
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Steady bearings in the fuselage and wings
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Joints connections
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Angle gearboxes
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Torque limiters
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Downdrive