Automotive Glossary
Automotive Glossary
Browse the glossary using this index
Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
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Ram PressurePressure caused by air of fluid movement. | |
RangeThe difference between the highest and lowest numbers. | |
Rare earth magnetsThese magnets are made from substances which hold a more dense magnetic flux than regular magnets. This means more power for the weight. Rare earth magnets are always preferable although not necessary as they can be expensive. | |
RatchetA mechanism consisting of a toothed wheel, the ratchet, and a locking or actuating pawl. Used to either prevent the pawl lever or the wheel from rotating in one direct only or in some mechanisms to drive the wheel forward. | |
RatioThe numerical relationship between two or more components transmitting a force or movement. | |
Ravigneaux Planetary GearsAn epicyclic gear set with two sun wheels and planetary gears on a common annulus. | |
Re-faceTerm used to describe the action when the face of a valve or other component is machined. | |
ReactTo respond. | |
ReactionAn equal and opposite force. | |