Type of Clutch

a)    Mechanical Clutch

                  i.        Friction Clutches

Friction clutches are widely used in industry, especially in the automotive industry. It can be driven or operated manually, pneumatically or hydraulically. Friction clutches also serves to move the motion between two mechanical components by using metal-lined metal fibrous and installed between two steel plates. In addition, it can also transfer the movement that occurs when purchased separately plates in contact with each other. In friction clutches system, a trip of friction plates is very small compared with the grip jaws. Part driven friction clutch often supported by bearings in the drive hub.

                      ii.        Jaw Clutches

Jaw clutches typically used on slow speed applications. Jaw clutch serves to engage and be engaged within arm clutch shift.  Branch transitions usually have a fulcrum or pivot point located at one end of the handle arm with operations located at the other end.

                      iii.        Centrifugal Clutches

Type centrifugal friction clutches are usually found in applications where it is desirable to have either no initial charge or protection against overload. It can also function as a coupling or can be mounted directly to the V-belt. In operation, centrifugal clutches will miss the start of or in any other position. Centrifugal clutches to engage positively without any problems during the operation.

                      iv.        Overrunning Clutches

Overrunning clutches are also known as one-way clutches. It is often used on the machine where the media drive motor or in need of protection. To avoid over speeding, drives by allowing free rotation of the drive components. It is designed to allow rotation of the driving force in the forward direction only. To achieve this overrunning action, two common types of roller mechanism is used and sprags. In this system, the rollers will be running on a flat surface in the housing round while sprags positioned between two spherical surfaces. Sprags is not fixed or shaped pieces. During clutch operation, the sprags is wedged between the inner and outer hub.

                      v.        Torque Limiting Clutches

Torque limiting clutches used in any number of different pieces of equipment or even used with any type of roller chain coupling. Half clutch system is always engaged at start up and only when the charge slip.

                      vi.        Tooth Clutches

Pneumatic system used in the clutch teeth of the hydraulic actuator cylinder to the operating system. Mating surface on the clutch gear is built with notches or serrations. In operation, the notched surface connects every other movement sent from the drive to the driven part of the clutch.

b)    Hydraulic Clutches

                      i.        Fluid clutches

Fluid clutch is widely used in industry because they have the ability to start under heavy loads and absorb shock loads. It is also used to provide power flow smoothly driven side of the engine and is also known as a fluid coupling. Fluid clutch driven half of the fluid coupling actuated by hydraulic fluid. Half drive (pump / impeller) and half driven (turbine) will rotate at the same speed during operation.

c)    Electric Clutches

Electric clutch is used where movement occasionally necessary, especially to start and stop the motor drive on a short cycle time. In the electric clutch, coil mounted on the driven component or machine while the armature plate mounted on the motor or drive shaft. When the two parts are de-energized, no contact or anything going on between them, although it can run motor. When electric current is applied to the magnet or coil, a magnetic field is set and will cause the armature and coil pulls together. This action will then install the two parts of the electrical and physical causes them to rotate as one piece.

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