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Fabric |
An
array of parrel cords used in tire manufacturing.
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Fiberglass |
A
material used in belt construction, consisting of fine spun
glass coated with adhesive |
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Flotation Tire |
A
tire designed to minimize soil penetration and compaction.
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Flush Fit |
A
condition where the mounting pad of the wheel goes into
place freely and without obstruction against the hub
mounting surface.
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Follower Joint |
A
non-load-carrying ball joint that maintains the position of
the steering knuckle and provides the correct steering axis
inclination angle; sometimes called pilot joint or friction
joint.
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Footprint |
The
mark let by a loaded tire's tread as it comes in contact
with the road surface.
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Footprint Area |
The
amount or area of contact in square inches the tire has with
the road. This is dependent upon both load and inflation
pressure as well as tire dimensions.
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Fore-and-Aft Weight Transfer
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A
load factor where weight is transferred from the front tires
to the rear tires during acceleration and from the rear to
the front tires during braking.
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Front Wheel Independent-Dead
Rear |
A
suspension system found only on front wheel drive cars. It
has a solid rear axle which does not transmit driving torque
since the car has front wheel drive. It just holds up the
rear wheels.
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Front Wheel Independent-Live
Rear |
A
suspension system found only on rear wheel drive cars. the
rear wheels are connected together through an axle which is
in turn connected to the frame. A live rear axle includes
the differential and transmits driving torque through itself
to the rear wheels.
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G |
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g |
A
unit of acceleration. "g" is a symbol that represents the
acceleration of gravity. Acceleration at 1g equals 32 feet
per second.
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Green Tire |
A
tire which has not been vulcanized or cured.
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Grooves |
Circumferential channels between the tread ribs of a tire.
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Grooving |
A
tread cutting process in which grooves of varying depths and
angles are cut into a tire's tread to improve forward
traction, braking, or lateral stability.
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Gross Axle Weight Rating
(GAWR) |
The
maximum weight that the front or rear axle can carry. The
front and rear gross axle weight must not exceed the front
and rear GAWR's.
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Gross Combination Weight
Rating (GCWR) |
The
total weight of the loaded tow vehicle and the loaded
trailer.
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Gross Vehicle Weight (GVW)
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The
total weight of the vehicle, including passengers, fuel,
cargo and attachments.
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Gross Vehicle Weight Rating
(GVWR) |
The
maximum permissible loaded weight of the vehicle and takes
into account the capabilities of the engine, transmission,
frame, spring, brakes, axles and tires. The GVW must not
exceed the GVWR.
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