It is important to have the right tire for the job for a plethora of reasons - not least both safety and efficiency. The tread of the tire helps meet these requirements. Each manufacturer has its own unique designs that they think will best fit the user's needs and allow the machine in use to work to the best of its ability. From garden lawn mowers to industrial machines for farms and construction, having the correct tread is critical.
The tread of the tire is that zig-zag pattern you think of when you picture a classic standard-issue tractor. It gives you traction, hence the name. It is the first contact with the land and increases the surface area to add grip and reduce soil compaction, which can harm yields. The types of tires needed for specialist jobs are designed by experts, from your garden lawn mower to the most sizable crane or bulldozer.
There are three main types of tires. They are agricultural, industrial, and OTR.
These are what are usually on the front of your tractor (most likely a 2-wheel drive) and implement machinery. For your agriculture tires, there are F1 (drier land), F2 & F2M (more wet and soft lands). These are designed to add to grip and self-clean, assist in steering control and work in harmony with your R1 tires, which we discussed earlier. These tires - known as rib tires - are perfect for operations that require specialist handling. ‘Ribs’ are the mini grooves that go around the whole circumference of the tire.
For the industrial tractor, there is the F3 tire; ﬂatter than the above, they are a better ﬁt for your roads and hard surface concretes and sophisticated handling needs.
OTR tires come in a variety of shapes, sizes, and types. OTR tires stand for Off The Road and are built for large machines for mining and construction, where you’ll find the toughest and most rough surfaces. These tires range from very tractive patterns to completely smooth patterns. They depend on the specific task they’re designed for, and come with letters that define the type of service such as Compactor [C], Grader [G], Earthmover [E], and Loader/Dozer [L].
E2, G2, and L2 tires are built for traction and stability.
E3, G3, and L3 are designed for less demanding conditions and not critical applications.
E4 and L4 have a deeper tread, which helps to minimise the damage from rough and sharp lands, subsequently increasing tire life.
L5 are designed for more critical applications where the best protection against rocks and cuts is needed. They feature an extra deep tread that guarantees increased durability.
E7 have shallow treads or ‘ribs’ which are designed for loose surfaces such as sand.
As you can see, there isn’t really a “one tire fits all” motto to be followed. It is essential to have the correct tire for the specialist job at hand for efficiency and safety. For the whole catalogue and varieties of tires BKT has to offer, click here.
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