Page 13 - National Express_ GMStands

Definitions

OEM Original Equipment Manufacturer As part fitted originally by the manufacturer or available
as a spare part from the manufacturer, generally as
supplied when the vehicle was delivered new.
This may also include parts manufactured by a supplier
to the vehicle manufacturer. An example would be an
Alcoa alloy wheel supplied by Alcoa rather than Volvo.

Wheel Rim The circular steel or alloy component that provides
connection of the tyre to the vehicle.

Wheel Assembly The combined wheel rim and tyre (i.e. fitted together)

Calibration Process of ensuring measuring devices are accurately
measuring and displaying the correct value.

Re-cutting/Re-Grooving The process of cutting new grooves in a partly worn
tyre in order to extend its life.

Re-mould/Re-Cured The process of applying a new layer of rubber to a tyre
casing to extend its life.

Global Maintenance Standard: Wheel Fitment & Security 11