What is a Clutch? A clutch is a mechanical device which is used to connect (or disconnect) two rotating shafts on the will of operator. One of the most prominent application of clutch is in modern automobiles. Many times, it has been found that people confuse between Clutch, Coupling and Brakes. Let us understand differences… Read More »
What is a coupling? A coupling is a mechanical device which is used to hold two rotating shafts together. It is a permanent joint, unlike clutch which can be disengaged on the will of operator. With the help of couplings, we can join two shafts which are intersecting, colinear or parallel (with a small distance).… Read More »
Threaded joints Threaded joints are defined as separable joints which are used to hold to machine parts together by means of threaded fastening such as bolt and nut. Features of threaded joints From the above definition we can find some features of them and they are. They are detachable joints which means when required the… Read More »
Recirculating ball screw A recirculating ball screw consists a screw, a nut and a series of balls. The main difference between a recirculating ball screw and a power screw is that in former the sliding friction gets replaced by rolling friction. Since rolling friction is very less than sliding friction recirculating ball screw has very… Read More »
What is a power screw? A power screw is a mechanical component which is used to convert rotary motion into the linear motion. Sometimes a power screw is also known as translation screw. It uses helical motion of screw to transmit the power rather than holding the parts together. Applications of power screws It is… Read More »
What is flywheel? A flywheel is a heavy rotating body which acts as a reservoir of energy. It acts as a bank of energy between the energy source and machinery. Energy stored in a flywheel is in the form of kinetic energy. Functions of flywheel It is used to store energy when available and supply… Read More »
What is a Bearing? A bearing (Sliding contact bearing or Rolling contact bearing) is a mechanical element which allows relative motion between two rotating parts, with minimum friction. An example of such rotating parts are shaft and its housing. Function of bearing A good bearing is expected to do following functions. It should ensure free… Read More »
In this article we will learn Gear trains and their types What is a Gear train? A Gear train is a combination of Gears which is used when we have to obtain large velocity reduction (or vice versa) in a limited space Gear trains are used in almost all machines which are dealing with the… Read More »
What is a Gear? A Gear is a machine component, which is used to transmit mechanical power from one shaft to the other by successively engaging its teeth. Gears are one of the most used method of mechanical power transmission in the machines. Power transmission by the gears have almost 100% efficiency. Advantages of Gear… Read More »
Definition of Cam A cam is a mechanical member used to impart desired motion to follower by direct contact Cam and follower combination belongs to the category of higher pairs. Also read What are higher pairs? Necessary members of cam and follower mechanism are A driver member known as cam A driven member known as… Read More »