Brake classification - Hydraulic brakes Video
 
Hydraulic braking system is a type of braking system in which unlike the mechanical braking system, hydraulic fluid is used to transmit the brake pedal or brake lever force from the brake pedal or brake lever to the final drum shoes or disc calliper in order to achieve braking.

Hydraulic brakes work on the principal of Pascal's law. According to Pascal's law, any force applied to a confined fluid is transmitted uniformly in all directions throughout the fluid regardless of the shape of the container.
 
 
Advantages of  hydraulic brakes Disadvantages of hydraulic brakes
  • Hydraulic systems are easy to control and accurate.
  • Hydraulic systems are simpler and easier to maintain because these systems use less moving parts.
  • Only hydraulic systems can deliver constant torque or force regardless of speed changes.
  • Easy to spot leakages of a hydraulic system.
  • Great force multiplier
  • Hydraulic fluid is self lubricating and prevent corrosion
  • The flexibility of brake linings.
  • The whole braking system fails due to leakage of fluid from brake system.
  • The presence of air inside the tubing ruins the whole system
  • Maintenance is more than other braking systems.
  • Construction is complex.
  • Brake fluid can pollute environment