Types of Pulley

Types of Pulley

A pulley is a simple mechanical device that includes a flexible rope, cord,  chain, or belt being carried on the rim of a wheel. The wheel and rope can be of any size and length. The wheel is referred to as a drum or a sheave. There are various types of pulleys used for different purposes. Let us know about various types of pulleys.

Various types of pulley help in making variety of lifting and moving tasks easier. These are classified depending upon the changes in direction of the force, changes in magnitude and changes on both magnitude and force. The pulley system consists of a rope and wheel and axle where, the grooved wheel mounted with an axle. In this article, let us discuss in detail about types of pulleys.

Table of Contents:

Types of Pulley is listed below:

  • Fixed
  • Moving
  • Compound
  • Block and Tackle
  • Cone
  • Swivel eye
  • Fixed eye

Fixed Pulley

In this pulley, the wheel is fixed to a hard structure while the rope is loose. It does not allow any redirection of force. So instead of lifting an object, the object can be pulled using this pulley.

Moving Pulley

Here, the pulley’s wheel is not linked to any surface but the rope is linked to a stationary surface. A heavy load is attached to the wheel rather to the rope and when the rope is pulled, the wheel can be seen sliding up the rope along with the load. This needs less work compared to lifting the load directly.

Compound Pulley

It has both stationary and movable pulley. Here the load is kept on the wheel of the movable pulley which again is connected to the rope of a fixed pulley. Using this type of pulley, redirection of both the force applied and the total workload is possible.

Block and Tackle Pulley

It can reduce the effort required to move a heavy object. It has several movable and fixed pulleys arranged in parallel with each other in such a way that fixed ones are with fixed and movable are with the movables. An each pair is linked with another pair.

Cone Pulley

It consists of multiple pulley of decreasing circumference piled on top of each other, forming a cone shape. This arrangement allows to shift the speed of movement of pulleys. The good example of this would be multi gear bicycles.

Swivel Eye Pulley

This provides dynamic rotation in which the block holding the pulley wheel will rotate. This helps when the application requires a little rotation when picking up the load. These can be used with fibrous, nylon or wire ropes.

Fixed Eye Pulley

Here, the eye is fixed on the pulley block, it cannot be turn. This systems uses two or more pulleys and reduces the effort considerably.

To know the Concept based on Rotation of Pulley, Watch The Below Video:

These were some types of pulley, if you wish to know more, download BYJU’S The Learning App

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Pulley System Force:Push and Pull Action

See the video below and learn the solved problems on the pulley system.

Frequently Asked Questions – FAQs

Q1

What is a pulley?

A pulley is a simple mechanical device that includes a flexible rope, cord, chain, or belt being carried on the rim of a wheel.

Q2

What are the types of pulley?

The following are the types of pulley:

  • Fixed pulley
  • Moving Pulley
  • Compound Pulley
  • Block and Tackle Pulley
  • Cone Pulley
  • Swivel Eye Pulley
  • Fixed Eye Pulley
Q3

State true or false: A fixed pulley cannot be used to lift an object.

TRUE.
Q4

Multi gear bicycles use which type of pulley?

Multi gear bicycles use cone pulleys.
Q5

Which is an ideal pulley that can be used with fibrous, nylon or wire ropes?

Swivel Eye Pulley

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