Category: Theory of Machines.

Classification of Toothed Wheels

According to the Position of Axis of Shaft (a) Parallel (b) Intersecting  (c) Non-intersecting and non-parallel According to the peripheral…

Advantages and Disadvantages of Gear Drive

The following are the advantages and disadvantages of the gear drive as compared to belt, rope and chain drives: Advantages:…

Gear Drive

Introduction The slip and creep in the belt or rope drives is a common phenomenon, in the transmission of motion…

Construction of Cam Profile for a Radial Cam

Motion of the Follower

Cam follower systems are designed to achieve a desired oscillatory motion. Appropriate displacement patterns are to be selected for this…

Classification of Cams

Cams can be classified based on their physical shape. a) Disk or plate cam (Fig. 3.4 a and b): The…

Exercise Problems

1) An engine, running at 150 r.p.m., drives a line shaft by means of a belt. The engine pulley is…

Centrifugal Pump

A centrifugal pump has an impeller on the inside of a casing. Liquids are forced into the centre or “eye”…

Condition for the Transmission of Maximum Power

Maximum Tension in the Belt

While the centrifugal tension σcfσcf acts equally throughout the belt during operation and the quasi-static tensions σtσt and σsσs are only present to this extent in…

Centrifugal Tension

Since the belt continuously runs over the pulleys, therefore, some centrifugal force is caused, whose effect is to increase the…

Determination of Angle of Contact

When the two pulleys of different diameters are connected by means of an open belt as shown in Fig. (a),…