Bronchitis. Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic.
What does Centrebore mean? The âcenterboreâ of an alloy wheel is the size of the hole at the back of the wheel which the âhubâ fits into. To help the wheels to seat properly this hole needs to be an exact match to the size of the hub.
The hub bearing assembly is part of the mechanism of a car wheel. It is the assembly of hubs and bearings that facilitate the rotation of the wheel on the road surface. The hub bearing assembly consists of a wheel hub on which the bearings are mounted. The hub is attached to the axle and the bearings keep the wheel spinning smoothly. Hub bearing assemblies differ between front and back wheel sets.