What is a spur gear ?
Spur gears are the most easily visualized common gears that transmit motion between two parallel shafts. Because of their shape, they are classified as a type of cylindrical gears. Since…
INVOLUTE GEAR PROFILE
Involute Tooth Profile Imagine pulleys with simple indentations on their periphery equally spaced by pitch.These pulleys, when moved, would : · slip at the contact point · not rotate smoothly · produce vibration…
Law of Gearing
Consider the portions of the two teeth, one on the wheel 1 (or pinion) and the other on the wheel 2. Let the two teeth come in contact at point Q,…
Gear Terminology
Pitch: The size of each tooth on the gear. Teeth: The number of teeth on the gear. Material: What the gear is made of, e.g. Aluminum, Bronze, Steel. Root Diameter: The distance from…
Classification of cams and followers
Basic shapesTypes of follower movementManner of constraints of the follower Classification according to basic shapes of the cams: Wedge cam: A wedge cam has a wedge of specified contour. The translation…
Cams
A cam is a mechanical member used to produce desired motion to a follower by direct contact. The cam may be rotating or reciprocating whereas the follower may be rotating,…
Velocity and Acceleration Polygon
Procedure to sketch an Acceleration polygon: It is very important to remember the rules of vector addition and vector subtraction. For vector addition, vectors A and B must be so…
KINEMATIC INVERSION
Inversions of mechanism: A mechanism is one in which one of the links of a kinematic chain is fixed. Different mechanisms can be obtained by fixing different links of the same…
Mechanism Of A Machine
According to the definition, both forces and motions are transmitted and modified in a machine. The way in which the parts of a machine are interconnected and guided to produce a…
WHAT IS STEAM TURBINE ?
The steam turbine is one kind of heat engine machine in which steam's heat energy is converted to mechanical work.The construction of steam turbine is very simple.There is no piston rod,flywheel or…
