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ROller contat bearinG
Roller Contact Bearing
Roller Contact Bearings are counterpart of Ball Bearings and as the name suggests, in this type of bearings rollers are used instead of balls to separate inner and outer ring of the bearing. The design and structure of ball bearings and roller contact bearings is quite similar despite the method of separation yet their applications and performance has some differences. The main purpose of this type of bearings is to provide high performance by reducing the rotational friction while carrying a high axial and radial load.
cOMPARISON
Comparisons Between Different Bearings
Roller contact bearings are a bearing that is used in many different applications and industries, including heavy equipment and manufacturing. Compared to other bearings, roller contact bearings have a few key differences that make them more attractive for some applications.
Contact
Roller contact bearings have a larger contact area than ball bearings suited for heavy-duty applications
Cheaper
Suppose the load is distributed equally across multiple axes. In that case, roller contact bearings are generally cheaper to manufacture and maintain over their lifetime because of less friction between the rings.
The main difference between spherical vs. cylindrical bearings is the shape of their contact surfaces. Spherical bearings have a spherical outer race and can be used in applications where a rotational axis isn’t constrained to one plane. The cylindrical type only allows for an axial load transfer but has more stable dimensions, making them appropriate for use on machinery that must operate within close tolerances.
STRUCTURE OF ROLLER BEARINGS
As mentioned above, the design and structure of roller bearing is similar to ball bearing as both types of bearings use two rings; inner ring and outer ring. Yet, in ball bearings the separation medium used to disconnect inner ring from outer ring is balls and in roller bearings cylindrical rollers are used to separate both rings. Similarly, many different types of ball bearings are also available in roller bearings.
Applications
Some of the widely used applications of roller bearings are aviation cargo systems, engines, agriculture industry, heavy equipments and machinery, solar panels, medical equipments, automobile industry, power houses and many others.
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ROLLer CONTACT BEARING
In a simplified sense, roller bearings are designed to contact an object or surface and provide the necessary friction and torque to either push or pull that object or surface. The roller bearing itself comprises two parts: a steel carrier and an outer casing.
The steel carrier is usually constructed from hardened steel and has cylindrical rollers inside it. The rollers are made out of hardened steel spindles that rotate around their axis. When the outer casing is fitted onto the steel carrier, it protects the rollers inside.
The outer casing also helps keep the inner components at constant pressure, so you don’t have any performance issues when operating machinery that has a roller bearing system.
types of roller bearing
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