engineering-and-science

Did You Know How Do Trains Turn Without Any Differential

  • 6:34 pm April 5, 2018
  • delcy

Well this question will surely make you think that without any diffrential , how does it turn. But looks like the flanges on the wheels that keep the train on track is not the case at all. Then what could it be? Let's take a look inside.

They are conical in shape

If you notice the shape of the wheel of a train, you will notice that they are conical in shape. The side with greater diameter is on the inside. The shorter diameter lies towards outside.When the train approaches a curve and has to turn then the wheels slide away in the correct direction. This keeps the train on the track and allows for proper negotiation of the curve.



Once the train in motion

The train is moving in the left direction.Now if the train is making a left turn. Then the wheels due to centrifugal force will move towards the right. Well this will result in an increase in diameter of the right wheel and decrease in diameter of the left wheel.This will allow the right wheel to travel more distance due to the larger diameter when compared to the left wheel.

Trains turn without differential

The whole system is that the wheel shift happens automatically. No external system is required for the same. The Tire is the outer surface which remains in contact with the track and is fitted on the wheel to reduce maintenance costs. Replacing a worn out wheel is very expensive. The tire is forged on the wheel and wears over the use.



Heavy breaking

The most common cause of wheel or tire damage in trains is heavy breaking. The entire brake force is directed towards wheels. This puts a heavy burden on them and damages them. If the damage is severe then wheel has to be replaced. Train tires are about 3 inches in thickness making them durable. The replacement also calls for replenishing the worn inches. Hence making maintenance reasonable.