Lifetime 65004 - Page 47

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the roadway to the vehicle, generates the tractive forces that provide the directional
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providing those functions.
Non-pneumatic tire assembly:$QRQSQHXPDWLFWLUHDORQHRULQFRPELQDWLRQZLWK
a wheel or wheel center member, which can be mounted on a vehicle.
Normal occupant weight:7KLVPHDQVNLORJUDPVOEWLPHVWKHQXPEHURI
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Occupant distribution:7KHGLVWULEXWLRQRIRFFXSDQWVLQDYHKLFOHDVVSHFL¿HGLQ
the third column of Table I of 49 CFR 571.110.
Open splice: Any parting at any junction of tread, sidewall, or inner liner that
extends to cord material.
Outer diameter:7KHRYHUDOOGLDPHWHURIDQLQÀDWHGQHZWLUH
Overall width: The linear distance between the exteriors of the sidewalls of an
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ribs.
Ply:$OD\HURIUXEEHUFRDWHGSDUDOOHOFRUGV
Ply separation: A parting of rubber compound between adjacent plies.
Pneumatic tire: A mechanical device made of rubber, chemicals, fabric and
steel or other materials, that, when mounted on an automotive wheel, provides the
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Production options weight: The combined weight of those installed regular
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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.
Radial ply tire: A pneumatic tire in which the ply cords that extend to the beads
are laid at substantially 90 degrees to the center line of the tread.
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tag.
Reinforced tire:$WLUHGHVLJQHGWRRSHUDWHDWKLJKHUORDGVDQGDWKLJKHULQÀDWLRQ
pressures than the corresponding standard tire.
Rim: A metal support for a tire or a tire and tube assembly upon which the tire
beads are seated.
Rim diameter: This means the nominal diameter of the bead seat.
Rim size designation: This means the rim diameter and width.
Rim type designation: This means the industry of manufacturer’s designation for
a rim by style or code.
Rim width: 7KLVPHDQVWKHQRPLQDOGLVWDQFHEHWZHHQULPÀDQJHV
Section width: The linear distance between the exteriors of the sidewalls of an
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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.
Special Trailer (ST) tire:7KH³67´LVDQLQGLFDWLRQWKHWLUHLVIRUWUDLOHUXVHRQO\
Test rim:7KHULPRQZKLFKDWLUHLV¿WWHGIRUWHVWLQJDQGPD\EHDQ\ULPOLVWHGDV