8-1. Specifications- Page 384

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8-1. Specifications

Bead

The part of the tire that is made of steel wires, 
wrapped or reinforced by ply cords and that is 
shaped to fit the rim

Bead separation

A breakdown of the bond between components in 
the bead

Bias ply tire

A pneumatic tire in which the ply cords that extend 
to the beads are laid at alternate angles substan-
tially less than 90 degrees to the centerline of the 
tread

Carcass

The tire structure, except tread and sidewall rubber 
which, when inflated, bears the load

Chunking

The breaking away of pieces of the tread or sidewall

Cord

The strands forming the plies in the tire

Cord separation

The parting of cords from adjacent rubber com-
pounds

Cracking

Any parting within the tread, sidewall, or innerliner 
of the tire extending to cord material

CT

A pneumatic tire with an inverted flange tire and rim 
system in which the rim is designed with rim flanges 
pointed radially inward and the tire is designed to fit 
on the underside of the rim in a manner that 
encloses the rim flanges inside the air cavity of the 
tire

Extra load tire

A tire designed to operate at higher loads and at 
higher inflation pressures than the corresponding 
standard tire

Groove

The space between two adjacent tread ribs

Innerliner

The layer(s) forming the inside surface of a tubeless 
tire that contains the inflating medium within the tire

Innerliner separation

The parting of the innerliner from cord material in 
the carcass

Tire related term

Meaning