Bearings play a key role in the performance of agricultural machinery. So, what are the fertilizer spreader? As Wikipedia explains: 'bearing is a device to allow limited relative motion between two or more parts, typically rotation or linear movement. Bearings may be classified broadly in line with proposals that allow and according to the principle of operation, as well as directions of applied load can not cope. "The shape of the contact surface and small beds, they help to reduce friction between moving parts in machines and therefore makes them a decisive factor in the efficiency of machinery.

There are several bearing manufacturers who work with the agricultural sector industry to create bearings that make the machines more efficient and powerful, including companies such as SKF. Accurate bearings used in agriculture will be somewhat determined by special machines, but generally speaking bearings must be highly developed with a perfect seal and have the ability to stand up to tough conditions. For example, machines such as tractors must work accurately and quickly, but also stand up to some harsh conditions and climates and defend against dirt and corrosion as much as possible so they require a bed that can rise to the challenge .

Generally speaking, the types of lawn fertilizer spreader used in agricultural machinery would, in the main, include ball bearings, such as deep groove ball bearings, angular contact ball bearings and thrust ball bearings among others. Roller bearings can also be used in agricultural equipment, and will include species such as bearings tapered roller bearings and needle roller bearings. The main difference between the roller and ball bearings to roller bearings have linear contact as opposed to the point of contact, which allows them greater radial load and capacity, but it also means that they tend to operate at lower speeds, so these can be used for more serious types of machines and applications agricultural sector.