Bus terminology
CV-joint
EN · source definition
( Constant Velocity Joint ) One of the small circular devices at an end of an axle on a bus . Buses , Vanagons , and EuroVans have four of these, while the Syncro Vanagons have a total of eight. These are necessary to allow the axle to move up and down while still turning to propel the car. the joints need to be keep greased to function properly. when they are worn, they make a knocking-noise that strikes fear into the hearts of bus owners everywhere. Microbuses do not have CV joints, but use a 'swing-axle' and reduction gear box instead.
Attributed to vanagon_archiveView source
Canonical entry: dictionary.ja1.io/en/cv-joint