### All posts in: Theory of Machines

• 7 days ago

A belt is a looped strip of flexible material used to mechanically link two or more rotating shafts. A belt drive offers smooth transmission of power between shafts ..

• 2 weeks ago

## Comparison among Machine, Mechanism and Structure

In this article, on the first table, I have compared the differences between the mechanism and machine. On the second table, I have compared the differences between ..

• 4 weeks ago

## Watt Linkage: Mechanism and Application

Watt linkage is also known as the parallel linkage. James Watt invented Watt mechanical linkage. In Watt’s linkage central moving point of is constrained to travel ..

• 4 months ago

## Glossary of Common Mechanical Terms

Some of the basic terminologies that every mechanical engineering student need to know are covered in this article. Acceleration: Acceleration is the time ..

• 8 months ago

## Kinematic Diagrams

In analyzing the motion of a machine or mechanism, it is often difficult to visualize the movement of the components in a full assembly drawing. So we need to use kinematic ..

• 11 months ago

## Sliding Friction Force

In a sliding joint, contact force always acts perpendicular to the surface in contact. This contact force is commonly referred to as a normal force because it acts ..

• 11 months ago

## Classification of Gears

Classification of gears can be done according to relative position of the axes of revolution into three types. They are: Gears for Parallel shafts 1.1 Spur Gears ..

• 11 months ago

## Kennedy’s Theorem

The transformation of motion from one shaft to another shaft requires three bodies: a frame (the position of each shaft is fixed in the frame) and two gears. Consider ..

• 11 months ago

## Quick Return Mechanisms

Slow forward and quick return mechanisms are to be found on some metal cutting machines, digital printing machines and digital scanners. The output gives ..

• 12 months ago

## Cams, Followers and their Types

A cam is a rotating or sliding piece in a mechanical linkage that drives a mating component known as a follower. From a functional viewpoint, a cam-and-follower ..

• 12 months ago

## Comparison between Involute and Cycloidal Gear Tooth Profiles

Involute tooth profile is almost used generally everywhere and given preference over cycloidal tooth profile or any other gear tooth form. This doesn’t mean ..

• 1 year ago

## Gruebler’s Equation

Degrees of freedom for planar linkages joined with common joints can be calculated through Gruebler’s equation. Gruebler’s equation is given by formula: ..

• 1 year ago

## Grashof’s Law

The Grashof’s law states that for a four-bar linkage system, sum of the shortest and longest link of a planar quadrilateral linkage is less than or equal to the sum of the remaining ..

• 1 year ago

## Gear Terminology

The following are the important dimensions and geometries concerned with toothed gear: Pitch Circle : Pitch circle is the apparent circle that two gears can be taken ..