Rails are fixed on steel sleepers by keys in lugs and jaws.
The main function of sleepers is to support and distribute the load to the ballast from rails. Sleepers may be classified into two types based on their position on the railway track.
- Timber and Wooden sleeper
- Concrete sleeper
- Steel sleeper
- Cast Iron sleeper
- Rails are fixed on Steel sleepers by keys in lugs and jaws.
- Rails are fixed on a Wooden sleeper with the help of a screw, spike, and bearing plates.
- Rails are fixed on the Cast iron sleeper with the help of cotters and tie bars.
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