What Is Centrifugal Clutch? – Parts, Working, Advantages

Learn about the working principle, advantages, and disadvantages of centrifugal clutches. Discover the different parts of a centrifugal clutch and their functions, and find out the common applications of this type of clutch in different industries.”

What Is Centrifugal Clutch?

What Is Centrifugal Clutch
What Is Centrifugal Clutch?

A centrifugal Clutch is a type of clutch that uses centrifugal force to connect two concentric shafts, with the driving shaft nested inside the driven shaft. In the fully centrifugal type of clutches, the springs are eliminated altogether and only the centrifugal force is used to apply the required pressure for keeping the clutch in the engaged position.

Now Read More Blogs – What Is Semi Centrifugal Clutch?

Parts of Centrifugal Clutch

  1. Shoes – Shoes can move radially outwards and are held in position by spring.
  2. Guide or Spider:- Hold the shoes and guide their movement.
  3. Springs – Springs are used to engage and disengaging the shoe with the drum by centrifugal force.
  4. Friction lining:- The friction lining is provided to the outer surface of the driving shoe.
  5. Drum – The drum is connected to the driven member of the this clutch.

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Construction of Centrifugal Clutch

This clutch consists of one driving member and one driven member. The driving member is made of a spider or guide which contains spring and brake shoes.

It is manufactured in different designs as per the need. The driven member consists of friction lining on the inner surface. The driving member is connected with the engine crankshaft while the driven member advances to the transmission of the vehicle.

Now Read More Blogs – What Is Multi Plate Clutch?

Principle Centrifugal Clutch

This works on the principle of centrifugal force, which means when engine speed reaches a specific rpm (Revolutions per minute) it generates enough centrifugal force inside the clutch which results in clutch engagement and it transmits the engine power. At lower speeds, it disconnects itself to stop power transmission.

Now Read More Blogs – What Is Single Plate Clutch?

Working of Centrifugal Clutch

Centrifugal Clutch Video

It works on a straightforward principle. The driving member rotates on the movement of the engine crankshaft. When engine speed reaches the specified rpm it generates enough centrifugal force on the brake shoes.

It pushes the shoes outward of the center, which results in the connection of brake shoes to the friction lining of the driven member, it generates friction and transmits the power. When engine speed reaches the desired rpm clutch engages itself eliminating the need for manual operating linkage.

To reduce or Increase the engagement rpm of the clutch, the spring is replaced. To increase the engagement rpm stiff spring is used; while to decrease the engagement speed soft spring is used.

Advantages of Centrifugal Clutch

  1. It is low in price because of fewer components and simple construction.
  2. Easy to operate.
  3. It doesn’t require any separate control mechanism like clutch pedal etc.
  4. It requires less maintenance.

Disadvantages of Centrifugal Clutch

  1. Power transmission is limited due to slippage of shoes.
  2. It can not be used to transmit a high amount of torque.
  3. There will always be a power loss due to friction and slipping.
  4. Overheating problem due to quick engagement during running conditions.

Application of Centrifugal Clutch

  1. This clutch is used in an automatic transmission system.
  2. It is used in scooters, mopeds, and go-karts.
  3. It is used in chainsaws, lawnmowers, textile industries, etc.


What is a clutch?
A clutch is a mechanical device that is used to transmit rotating motion or torque from the driving shaft to the driven shaft.
What is Centrifugal Clutch?
A centrifugal-clutch is a type of clutch that uses centrifugal force to connect two concentric shafts, with the driving shaft nested inside the driven shaft.
What does a centrifugal clutch do?
The basic purpose of a centrifugal-clutch is to engage the engine with a load that is accelerated. It uses centrifugal force to turn the driveshaft and acts as a transmission activated by the engine’s increasing rpm.
How much HP can a centrifugal clutch handle?
Noram Centrifugal-Clutch is designed to fit engines with fractional horsepower to 50 HP applications.
What is a Noram Centrifugal Clutch?
Noram Centrifugal-Clutch is designed to allow safe, no-load, quiet starting of power tools. Noram clutches help reduce vibration, peak torque for more efficient engine performance, and offer overload protection for operator and equipment safety.
What is a Hilliard Centrifugal Clutch?
Hilliard centrifugal-clutch delivers automatic, gradual, cushioned engagement over a speed range on high-inertia loads. This smooths out and reduces the starting current surge. They protect against overload by absorbing shock, limiting torque and eliminating torsional resonance.
Centrifugal Clutch Used In Which Vehicle?
This clutch is used in an automatic transmission system. Centrifugal-clutch is used in scooters, mopeds, and go-karts.
What Is Semi-Centrifugal Clutch?
In the Semi-centrifugal clutch, the clutch springs are designed to transmit the torque at normal speeds, while for higher speeds, centrifugal force helps in torque transmission. The clutch pedal is used in the Semi-centrifugal clutch.
Where can I buy a centrifugal clutch?
Centrifugal clutches can be purchased from a variety of sources, including automotive parts stores, online retailers, and specialty clutch manufacturers. Some popular online retailers that sell centrifugal clutches include Amazon, eBay, and Summit Racing.
How do you insert a centrifugal clutch?
1. Determine the correct size and type of clutch for your application and gather the necessary tools and materials.
2. Install any additional components, such as a sprocket or pulley, onto the clutch as needed.
3. Slide the clutch onto the input shaft of the system, making sure that the splines on the clutch and the shaft are properly aligned.
4. Secure the clutch to the shaft using the retaining bolts provided with the clutch. These bolts should be tightened to the torque specifications provided by the manufacturer.
5. Connect the clutch to the power source, such as an engine or electric motor.
6. Test the clutch to ensure that it is properly installed and functioning correctly.
How do I choose a centrifugal clutch?
1. Size: Make sure the clutch is the correct size for your application, taking into account the horsepower and torque requirements as well as the size of the input shaft.
2. Type: There are several different types of centrifugal clutches, including wet, dry, and multi-plate. Choose the type that is best suited to your application based on the operating conditions and your specific needs.
3. Material: Centrifugal clutches are made from a variety of materials, including aluminum, steel, and brass. Choose a material that is durable and capable of handling the stresses of your application.
4. Brand: Choose a reputable brand that has a good track record of producing high-quality clutches.
5. Price: Determine your budget and choose a clutch that fits within your price range. Keep in mind that cheaper clutches may not be of the same quality as more expensive ones.
How do you remove a centrifugal clutch?
1. Gather the necessary tools and materials, including a wrench or socket set and a torque wrench if needed.
2. Disconnect the power source from the clutch, such as the engine or electric motor.
3. Remove any additional components, such as a sprocket or pulley, that are attached to the clutch.
4. Using the wrench or socket set, loosen and remove the retaining bolts that secure the clutch to the input shaft.
5. Carefully slide the clutch off the input shaft.
How do you clean a centrifugal clutch?
To clean a centrifugal clutch, you should first remove it from the machine it is installed on. Then, use a soft brush to remove any dirt or debris from the clutch. You can also use compressed air to blow away any small particles. Once the clutch is clean, you should lubricate it with a light oil or grease to ensure that it is functioning properly. Be sure to refer to the manufacturer’s instructions for specific maintenance recommendations for your particular clutch.

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