Roller Bearing Systems

A roller bearing is any cylindrical or spherical object that aids in the movement of an object greater in size than the bearing itself

. A roller bearing is a weight distribution-oriented bearing. The bearing utilizes many points of contact between a circular housing that contains internal rolling elements, such as ball bearings that sit within a collar. These bearing systems use the decrease in rolling resistance as a means of increasing the efficiency of moving an object.

Roller bearing systems can be either complex or simple. The simplest system is a simple roller unit underneath a heavier item. The roller unit allows the heavier item to be moved easily along the top of the rolling item.

Most roller bearing systems help create a decreased amount of friction between items, such as a wheel and the axle the wheel has been centered on. This allows the wheel to spin freely on the axle without being bound by the force of friction. It also decreases the force of drag on the wheel as it spins. This allows a wheel to be more easily pushed by any power source applied to it, whether its an engine or a person pushing a car.

The number of ball bearings within a roller bearing unit directly determines the decrease in the amount of force necessary to move the object. The higher the number of ball bearings making contact with both the bearing housing and the object being moved, the higher the amount of drag and friction will be decreased. This is so because each ball bearing acts as a weight distributor as it travels around the axle, allowing the wheel to spin freely around the axle it has been set on.

There are also many different designs and types of roller bearing systems that may be used in various applications. For example, cylindrical roller bearings consist of a metal collar that contains a smaller, toothed wheel inside. Between each tooth on the wheel lies a ball bearing that is held in place by the toothed wheel. As the load travels, the wheel turns; however, the weight of the load remains fixed directly over the spherical ball bearings inside the cylinder, allowing the easy movement of the load being moved. These are one of the most common types of roller bearing systems.

by: Varalakshmi

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