Athenian cultural dominance continued throughout the Roman period, and the buildings added to the Agora reflect the educational role of the city, a role that ended only with the closing of the pagan philosophical schools by the Christian emperor Justinian in A.D. 529.
Bearing, in machine construction, a connector (usually a support) that permits the connected members to rotate or to move in a straight line relative to one another. Often one of the members is fixed, and the bearing acts as a support for the moving member. Most bearings support rotating shafts against either transverse (radial) or thrust (axial) loads.
What is Done during Front Wheel Bearing Replacement? The machine will have to move a lot of things out of the way to get to the wheel bearings. Even a single wheel bearing takes a lot of work to replace. Modern wheel bearings, for the most part, are sealed in the wheel bearing hub. That means extra work to get them out.