sprocket

As nouns the difference between sprocket and ratchet

is that sprocket is a toothed wheel that enmeshes with a chain or other perforated band while ratchet is a pawl, click or detent for holding or propelling a ratchet wheel, or ratch, etc.

As a verb ratchet is

to cause to become incremented or decremented.

As an adjective ratchet is

(us|slang) ghetto (unseemly and indecorous).

As nouns the difference between gearwheel and sprocket

is that gearwheel is while sprocket is a toothed wheel that enmeshes with a chain or other perforated band.

As nouns the difference between sheave and sprocket

is that sheave is a wheel having a groove in the rim for a rope to work in, and set in a block, mast, or the like; the wheel of a pulley while sprocket is a toothed wheel that enmeshes with a chain or other perforated band.

As a verb sheave

is to gather and bind into a sheaf.

As nouns the difference between sprocket and chainset

is that sprocket is a toothed wheel that enmeshes with a chain or other perforated band while chainset is a crankset.

As nouns the difference between sprocket and crankset

is that sprocket is a toothed wheel that enmeshes with a chain or other perforated band while crankset is the component of a bicycle drivetrain that converts the reciprocating motion of the rider's legs into rotational motion used to drive the chain, which in turn drives the rear wheel.

As nouns the difference between farm and sprocket

is that farm is a small boat; barque or farm can be farm (usually with reference to farms abroad) while sprocket is a toothed wheel that enmeshes with a chain or other perforated band.

As nouns the difference between refridgerator and sprocket

is that refridgerator is misspelling of lang=en while sprocket is a toothed wheel that enmeshes with a chain or other perforated band.

As nouns the difference between sprocket and pulley

is that sprocket is a toothed wheel that enmeshes with a chain or other perforated band while pulley is one of the simple machines; a wheel with a grooved rim in which a pulled rope or chain will lift an object (more useful when two or more pulleys are used together such that a small force moving through a greater distance can exert a larger force through a smaller distance).

As a verb pulley is

to raise or lift by means of a pulley.

As nouns the difference between sprocket and roller

is that sprocket is a toothed wheel that enmeshes with a chain or other perforated band while roller is Anything that rolls.

As a proper noun Roller is

a Rolls-Royce car.