axle
/ˈaks(ə)l
/noun
A rod or spindle (either fixed or rotating) passing through the centre of a wheel or group of wheels: the exhaust pipe corrodes around the bend which goes over the rear axle on motor cars [as modifier]: axle grease North American railways operate cars at much higher axle loads...
- There'd have to be changes there: in the boilers, the pistons, the axles and wheels… rebuild the whole thing.
- The frame, in turn, features an oscillating front axle and pivoting rear tandem axles.
- Independent rear axles are similar to front axle of a front wheel drive car.
Synonyms
shaft, spindle, rod, arbor, pin, pivot;
mandrel
Origin
Middle English (originally axle-tree): from Old Norse ǫxultré.