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WHAT IS GEAR | GEAR TERMINOLOGY | MECHANICAL

Gear : Introduction : Gear is a simple machine with teeth that increase the force needed to pull or push something. It is transmitt the power. Gear एक साधारण मशीन है जो किसी चीज को धक्का देने के लिए आवश्यक बल को बढ़ाती है ..यह पावर को ट्रांसमिट करती है! Gear terminology :- 1. pitch circle :- it is an imaginary circle which by pure rolling action would give the same motion as the actual gear. 2. Pitch circle diameter :- It is the diameter of the pitch circle. the size of the gear is usually specified by the pitch circle diameter .it is also called pitch diameter. 3. Pitch point :- It is the common point of contact between two gears. 4 Addendum :- It is a radial distance of a tooth from the Pitch Circle to the top of the tooth. 5. Dedendum :- it is a radial distance of a tooth from pitch circle to the bottom of the tooth. 6...
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WHAT IS DYNAMOMETER | DYNAMOMETER |TYPES | MECHANICAL

"DYNAMOMETER :-                            A dynamometers are also a brake but in addition It has a device to measure the frictional resistance , knowing the frictional resistance. We may find the torque transmitted and hence the power of the engine. Types of dynamometer : -     Mainly there are the two types of dynamometers used for measuring the  power of an engine 1.) Absorption dynamometers. 2.) Transmission dynamometers. 1. Absorption dynamometers :-                                                    Here In the absorption type dynamometer the entire energy produced by the engine and it is observed by the frictional resistance of the brake .it is transmitted into heat , during the process of measurement. Classification of absorption type dynamometer :- a) Prony b...
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TYPES OF GEARS | GEAR | T.O.M. | MECHANICAL ENGINEERING

TYPES OF GEARS  classification of gear   :  1.  according to position of shaft :   (A) * Parallel Shaft .. :-                                        The two parallel and coplanar shaft are connected by gears.  EXAMPLE :-                      1. SPUR GEARS                     2. HELICAL GEARS :-  ( 1. Single helical and 2. Double helical)  1''SPUR GEARS :-                              The teeth are straight to shaft axis. Spur gear used to transmit the power between two parallel shaft.    characteristics :- 1. High power transmission . 2. easy to design and manufacturing . 3.c heap in cost compared to other.  Limitations:- 1. Not suitable for too soft w...
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