Why is four row cylindrical roller bearings Better?

Four row cylindrical roller bearings are designed to enhance the capabilities of cylindrical roller bearings. They usually come in two primary variants: one with a cylindrical or tapered bore and the other which is either opened or sealed. 

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These are extensively used in specific industries where it helps the roll necks of rolling mill stands, and in the paper industry for calendars and roller presses. Since these are mounted using an interference fit, four-row cylindrical roller bearings are ideal for rolling mill applications. This interference fit at the roller neck ensures high speed seamless operations. These work well with bearings which provide axial loads since it can only accommodate radial loads.

Four-row cylindrical roller bearings have a separable inner ring and outer ring. Cylindrical roller bearings with no ribs in the inner ring or outer ring. The inner ring and outer ring can move relative to each other in the axial direction, so they can be used as free-end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, steel plate stamping cages or copper alloy machined cages are used. However, some use polyamide molded cages.

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Four-row cylindrical roller bearings mainly bear combined radial and axial loads, mainly in the radial direction. The load-bearing capacity of the bearing depends on the raceway angle of the outer ring. The larger the angle, the greater the load-bearing capacity. This type of bearing is a separable bearing and is divided into single-row, double-row and four-row tapered roller bearings according to the number of rows of rolling elements in the bearing. The clearance of single-row tapered roller bearings needs to be adjusted by the user during installation; the clearance of double-row and four-row tapered roller bearings has been set according to user requirements when the product leaves the factory and does not require user adjustment.

Four-row cylindrical roller bearings are usually separate types, that is, the tapered inner ring assembly consisting of an inner ring with a roller and cage assembly can be installed separately from the tapered outer ring (outer ring).

Four-row cylindrical roller bearings are widely used in automobiles, rolling mills, mining, metallurgy, plastic machinery and other industries.

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