Toyota Camry (2018 year). Manual - part 138

562

8-1. Specifications

The combined weight of installed regular pro-

duction options weighing over 5 lb. (2.3 kg) in

excess of the standard items which they

replace, not previously considered in curb

weight or accessory weight, including heavy

duty brakes, ride levelers, roof rack, heavy

duty battery, and special trim

Rim

A metal support for a tire or a tire and tube

assembly upon which the tire beads are

seated

Rim diameter

(Wheel diameter)

Nominal diameter of the bead seat

Rim size designation

Rim diameter and width

Rim type designation

The industry manufacturer’s designation for a

rim by style or code

Rim width

Nominal distance between rim flanges

Vehicle capacity

weight (Total load

capacity)

The rated cargo and luggage load plus 150 lb.

(68 kg) times the vehicle’s designated seating

capacity

Vehicle maximum load

on the tire

The load on an individual tire that is deter-

mined by distributing to each axle its share of

the maximum loaded vehicle weight, and

dividing by two

Vehicle normal load on

the tire

The load on an individual tire that is deter-

mined 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 compo-

nents in the bead

Tire related term

Meaning

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8-1. Specifications

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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 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

compounds

Cracking

Any parting within the tread, sidewall, or inner-

liner 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 corre-

sponding 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

Intended outboard

sidewall

(a) The sidewall that contains a whitewall,

bears white lettering, or bears manufac-

turer, brand, and/or model name molding

that is higher or deeper than the same

molding on the other sidewall of the tire, or

(b) The outward facing sidewall of an asym-

metrical tire that has a particular side that

must always face outward when mounted

on a vehicle

Tire related term

Meaning

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8-1. Specifications

A tire designated by its manufacturer as pri-

marily intended for use on lightweight trucks

or multipurpose passenger vehicles

Load rating

The maximum load that a tire is rated to carry

for a given inflation pressure

Maximum load rating

The load rating for a tire at the maximum per-

missible inflation pressure for that tire

Maximum permissible

inflation pressure

The maximum cold inflation pressure to which

a tire may be inflated

Measuring rim

The rim on which a tire is fitted for physical

dimension requirements

Open splice

Any parting at any junction of tread, sidewall,

or innerliner that extends to cord material

Outer diameter

The overall diameter of an inflated new tire

Overall width

The linear distance between the exteriors of

the sidewalls of an inflated tire, including ele-

vations due to labeling, decorations, or protec-

tive bands or ribs

Passenger car tire

A tire intended for use on passenger cars,

multipurpose passenger vehicles, and trucks,

that have a gross vehicle weight rating

(GVWR) of 10,000 lb. or less.

Ply

A layer of rubber-coated parallel cords

Ply separation

A parting of rubber compound between adja-

cent plies

Pneumatic tire

A mechanical device made of rubber, chemi-

cals, fabric and steel or other materials, that,

when mounted on an automotive wheel, pro-

vides the traction and contains the gas or fluid

that sustains the load

Radial ply tire

A pneumatic tire in which the ply cords that

extend to the beads are laid at substantially 90

degrees to the centerline of the tread

Reinforced tire 

A tire designed to operate at higher loads and

at higher inflation pressures than the corre-

sponding standard tire

Tire related term

Meaning

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8-1. Specifications

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: Table 1 

⎯ Occupant loading and distribution for vehicle normal load for

various designated seating capacities

Section width

The linear distance between the exteriors of

the sidewalls of an inflated tire, excluding ele-

vations due to labeling, decoration, or protec-

tive bands

Sidewall

That portion of a tire between the tread and

bead

Sidewall separation

The parting of the rubber compound from the

cord material in the sidewall

Snow tire

A tire that attains a traction index equal to or

greater than 110, compared to the ASTM E-

1136 Standard Reference Test Tire, when

using the snow traction test as described in

ASTM F-1805-00, Standard Test Method for

Single Wheel Driving Traction in a Straight

Line on Snow-and Ice-Covered Surfaces, and
which is marked with an Alpine Symbol ( 

 )

on at least one sidewall

Test rim

The rim on which a tire is fitted for testing, and

may be any rim listed as appropriate for use

with that tire

Tread

That portion of a tire that comes into contact

with the road

Tread rib

A tread section running circumferentially

around a tire

Tread separation

Pulling away of the tread from the tire carcass

Treadwear indicators

(TWI)

The projections within the principal grooves

designed to give a visual indication of the

degrees of wear of the tread

Wheel-holding fixture

The fixture used to hold the wheel and tire

assembly securely during testing

Tire related term

Meaning