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8-1. Specifications
Vehicle maximum
load on the tire
The load on an individual tire that is determined by distributing to
each axle its share of the maximum loaded vehicle weight, and divid-
ing by two
Vehicle normal load
on the tire
The load on an individual tire that is determined by distributing to
each axle its share of curb weight, accessory weight, and normal
occupant weight (distributed in accordance with Table 1
*
below),
and dividing by two
Weather side The surface area of the rim not covered by the inflated tire
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 substantially less than 90 degrees to the cen-
terline 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 compounds
Cracking
Any parting within the tread, sidewall, or innerliner of the tire extend-
ing 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 separa-
tion
The parting of the innerliner from cord material in the carcass
Tire related term Meaning
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