OTR is the abbreviation of Off The Road tire. OTR tires are mainly used in construction and mining settings and are usually large and heavy meaning that these vehicles are not suitable for general road use. OTR main sizes include 16.00R24, 16.00R25, 17.5R25, 18.00R33, 20.5R25, 23.5R25, 26.5R25, 29.5R25, 21.00R33, 21.00R35, 27.00R49, 30.00R51, 33.00R51, 36.00R51, 40.00R57, 35/65R33 etc.
OTR TIRES is the short name for Off the Road Tires. As the name describes, Tires for giant vehicles such as dump trucks or loaders fall within this category. Mostly, these Tires operate in mine areas or at port and terminals.
Examples of OTR sizes from Global excel tyres cO.,LTD are the 16.00R25, 20.5R25 and the 29.5R25. All our OTR TIRES are designed to perform on all off-road applications because of their deep tread depth and heat-resistant rubber compound.
off road tires
When conditions are rough and loads are high, Friendway OTR tires come into their own. The letters “OTR” stand for “off the road”, and as this designation indi- cates, Continental OTR tires are specially designed for off-road applications, where they often have to operate on uneven, unfinished surfaces.
OTR tires are designed for vehicles that frequently travel on difficult terrain. The tires are built to support large amounts of weight to guide vehicles through challenging conditions that would leave most other trucks dead in their tracks. An OTR tire comes in three basic construction types:
Bias: A bias tire is one that has cross-ply construction, using cords that stretch from bead to bead.
Belted Bias: These tires are similar in construction to bias OTR tires; however, there are usually two or more cross-ply layers than the bias construction with corded or steel stabilizing belts attached under its tread.
Radial: Like a bias tire, radial tires use cords that extend from the beads across the tread; however, instead of a crisscross pattern, cords are parallel to one another, creating a stronger tire with increased longevity.
Bias and belted bias OTR tires are best used for vehicles traveling at slower speeds while radial tires are great for trucks traveling at higher speeds. While these three constructions are the most commonly seen among OTR tires, and used in such as road grading quarry work, construction, and all types of hauling.
OTR Tire Specifications & Types
Like all tires, OTR tires have unique specifications that indicate distinct differences in capability and performance. The following terminology will help fleet managers make the right choice:
Tread: Responsible for traction.
Carcass: The tire’s casing, consisting of body plies and wire beads.
Belt Package: The number of low-angle, steel cord layers that strengthen the tire.
Radial Ply: Responsible for load, steering, and braking forces transmitted between the road and the wheel.
Inner Liner: Term used for tubeless tires’ compounded rubber layer.
Sidewall: The side layer covering everything except for the tread and belt package.
Bead Bundle: The steel rim that sits just outside the sidewall.
Apex: Located over the bead bundle, this rubber filler is responsible for progressive transition from the bead bundle zone to the rubber tire wall.
Chafer: A hard rubber layer that resists erosion of the bead area.