Mittelteil des Rads, mit dem es auf der Welle oder dem Zapfen sitzt.
ETYM See Hob.
1. The center of a city; SYN. civic center, municipal center, down town.
2. The central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes.
A central node in a star network to which all other nodes are connected by means of point-to-point communications links.