Various Types of Cylindrical Bearings for Different Applications
When it comes to accommodating radial loads at high speeds, cylindrical roller bearings are the best choice for they ensure high performance and operational reliability. With the bearing so designed to handle multiple radial loads, they are found in most of the applications. Nevertheless, its performance depends on the optimal weight, load capacity, durability and cost when used for any application.
A cylindrical roller bearing is known for its design, which comprises inner and outer raceways and cylindrical rolling elements. The raceways or rings are separated by rolling elements and they help minimize the overall frictional force. The bearing comes with a cage, which is attached to the rings. The performance of the bearing depends on the number of rollers and the more the number the higher the performance.
Some Popular Types of Cylindrical Bearings and Their Uses
The use of cylindrical bearings depends on their type and the following information explains the three design variations of them.
1. Single-Row Cylindrical Roller Bearings: With separable components, such as the raceways, rollers and cage assembly, a single-row cylindrical roller bearing facilitates easy interchangeability of components when the raceways need to have interference fit under heavy load conditions. The bearing is known for its designs, where you have NU design bearings, with the outer ring having two integral flanges to handle shaft displacement respective to the bearing housing in both directions.
The N design bearing, on the other hand, has the inner ring attached to two integral flanges, which facilitates handling of axial shaft displacement correlative to the bearing housing in both directions. There is also NJ design bearing, with integral flanges, two and one on the outer ring and inner ring respectively. With this design, the bearing can support the shaft displacement in only one direction, but it also helps detect the shaft in the line of the axis in one direction.
2. Single-Row Full Complement Cylindrical Roller Bearings: These bearings come with NCF and NJG designs to help detect the shaft in the axis in one direction and in the due course support shaft displacement respective to the housing in opposite direction.
3. Double-Row Full Complement Cylindrical Roller Bearings: You can find different design variants in double-row full complement cylindrical roller bearings. The come with integral flanges and are sealed for high performance. The annular grooves and holes help easy lubrication during operation.
Cylindrical roller bearings, unlike spherical plain bearings are used to accommodate shaft displacement in one or both directions. They also differ from a spherical ball bearing, which is known for self-aligning and not causing any misalignment during operation.
The high performance and efficiency of cylindrical bearings make it suitable for various applications such as in railways, paper industry, gear boxes and electric motors.
