Tapered roller bearings have tapered inner and outer ring raceways and tapered rollers. They are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.
Single row tapered roller bearings
The SKF standard assortment of single row tapered roller bearings comprises popular sizes of metric single row tapered roller bearings in accordance with ISO 355:2007 and inch bearings in accordance with ANSI/ABMA Standard 19.2-2013.
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Double row tapered roller bearings
Double row tapered roller bearings can carry heavy loads and are stiff. They are suitable for the accommodation of combined (radial and axial) loads and can locate a shaft axially in both directions with a given axial clearance or a given preload. Their main use is in gearboxes, hoisting equipment, rolling mills and machines used in the mining industry, e.g. tunnelling machines.
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Four-row tapered roller bearings
Four-row tapered roller bearings are used successfully worldwide for rolling mill bearing arrangements where rolling speeds are slow to moderate. Because of their design they are able to take up those axial loads which occur in such applications in addition to radial loads and generally no separate thrust bearings are required in such arrangements.
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