Custom Search

Mechanical Definitions

Overdrive : It is an arrangement of gearing which is used to produce more revolutions of the main flame. In other words, it is a combination of gearing inside a transmission or transaxle that results in the output speed being greater than the input speed.

Overfire Draft : The air pressure in a boiler furnace during occurrence of the main flame is called overfire draft.

Overhaul : The process of taking apart, inspect, repair and reassemble as a piece of machinery.

Overhead Shafting : It is a line shafting or counter shafting which is suspended from the ceiling from which power is transmitted to machines.

Overhead Shovel : It is a tractor which digs with a shovel at its front end, swings the shovel rearward overhead and dumps the shovel at its rear end.

Overrunning Clutch : It is a device used in a transmission which disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft. It is also known as Freewheel.

Overshot Wheel : It is a vertically-mounted water wheel which is rotated by falling water striking paddles, blades or buckets near the top of the wheel.

Overspeed Governor : It is a governor which is used to stop the prime mover when speed is excessive.

Page    1    2    3