SECTION II. EQUIPMENT DESCRIPTION AND DATA (Con't)
1-8. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES (Con't).
c. TIRE CATEGORIES AND GROUPS (Con't).
Table 1-1. Tire Categories and Groups
Passenger Car Tires. Passenger car tires are of standard construction. Most
passenger car tires have a regular rib tread but can be a more aggressive lug tread
design. Regular rib tread provides adequate traction and long life on highways.
Passenger Car tires are usually identified with "P" in the front of the size number
designator imprinted on the sidewall of the tire. An example of the size designator
number of a passenger tire would be P205/75R15.
Light Truck Tires. Light truck tires can be variety of tread designs. These tires
are used on vehicles such as Pick-up Trucks and some Sports Utility Vehicles and
are usually identified with "LT" in the front of the size designator imprinted on the
sidewall of the tire. An example of a size designator number of a light truck tire
would be LT235/85R16.
Truck and Bus Tires. Truck and Bus tires can be either a regular rib or lug
traction tread design. These tires are used on vehicles such as the semi-trucks,
buses and trailers. Truck tires with rib tread are usually used on non-drive axles
and trailers. Truck tires with more aggressive, lug tread are usually used on drive
axles to provide maximum traction. Examples of a Truck and Bus size designators
are 11R22.5 (radial) and 10:00-20 (bias).
Special Application: Off/On Road, Severe Application (ORSA) Tires. These
tires are Special Application, Light Truck tires, which have limited highway use
and are designed primarily in severe off-road conditions. Some vehicle
applications for these tires would be Pick-Up Trucks used by the U. S. Border
Patrol and U.S. Forestry Service.
Earthmoving Vehicle Tires. These tires are designed to operate at low speeds,
off-road. They include tires used on Dozers, Loaders, Shovels Scrapers and
Mining and Logging Tires. These tires are designed to operate at low speeds in
mining operations, logging trails or cross country. These tires usually have very
high load carrying capacities.
Mobile Crane and Forklift Tires. These tires are designed to operate off-road on
Cranes and Forklifts at low speed.
This category includes tires used for industrial, underground mining and skid steer
tires. The tires come in a variety of sizes and include tires used on mining cars,
warehouse forklifts and cranes, towed industrial or mining type trailers and some
aircraft support vehicle tires.
This category includes tires used on Farming and Agricultural type vehicles and
These tires are Light, Medium or Heavy Truck/Trailer tires, which are designed to
be used in severe military tactical environment. Performance capabilities will very
depending on the specific military application. Examples are the HMMWV and
HEMTT tires. These tires are designed for tactical use and should not be confused
with other commercial tires, which are used on military garrison support vehicles.