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Cylindrical Roller Bearings
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Cylindrical Roller Bearings
Cylindrical roller bearings use rollers for rolling elements, and therefore has a high load capacity. The rollers are guided by ribs on either the inner or outer ring, therefore these bearings are also suitable for high speed applications. The inner and outer rings can be separated to facilitate assembly, and both can be fit with shaft or housing tightly. If there is no ribs, either the inner or the outer ring can move freely in the axial direction. Cylindrical roller bearings are therefore ideal to be used as so-called "free side bearings" that absorb shaft expansion.
Types Of Cylindrical Roller Bearings
Single or Double Row Bearings
Full Complement Cylindrical Roller Bearings
Crossed Cylindrical Roller Bearing
Single Row Bearings
The rollers of single row cylindrical roller bearings with cage are guided on one of the bearing rings. The bearing ring with integral flanges and the roller and cage assembly can be withdrawn from the other ring. This allows easy mounting and dismounting. They have high radial load carrying capacity at high speeds. EC type bearings have larger load carrying capacity. Depending on the type and location of the flanges, they are of different types: Two integral flanges on the outer ring only. Two integral flanges on the inner ring only. Two integral flanges on the outer ring and one on the inner. Two integral flanges on the outer ring, one integral and one loose on the inner.
Full Complement Cylindrical Roller Bearings
They incorporate maximum number of rollers and low sectional height as compared to width allowing very high load carrying capacity. They are suitable for very high radial loads. The rollers are in direct contact with each other and slide against each other while rolling. The single row bearings are developed as standard single row designs they have two integral flanges on the inner ring and one on the outer. This helps locate the shaft in one direction. They are suitable for heavily loaded slow speed applications. The double row bearings have an annular groove for lubrication. All different types of double row cylindrical roller bearings differ in the number of flanges in the outer ring。
Crossed Cylindrical Roller Bearings
The raceways in the inner and the outer rings of the crossed cylindrical roller bearings are inclined at an angle of 45 °. The diameter of the rollers is larger than the length. They provide stiff bearing arrangements and can carry very heavy loads. They require minimum of space and require very less space. They can accommodate radial, axial and moment loads. Their surface finish maximizes lubricant film formation and optimizes rolling motion of the rollers. Apart from the standard single row they are available in other: Single or double row bearings in full compliment or caged forms Bearings with clearance and preload Bearings with integral gears for bolt attachments in bearing rings Bearings with integral seals.
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