Tapered roller bearings

 

Benefits


    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. The projection lines of the raceways meet at a common point on the bearing axis (fig 1) to provide true rolling and low friction. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle (α). The size of the angle is indicated by the calculation factor e († product tables): the larger the value of e, the larger the contact angle. A single row tapered roller bearing is typically adjusted against a second tapered roller bearing.
    Single row tapered roller bearings are separable (fig 2), i.e. the inner ring with roller and cage assembly (cone) can be mounted separately from the outer ring (cup).
    The factors that influence SKF bearing performance and service life include but are not limited to the following:
    roller end/ flange contact area
    raceways profiles
    consistency of profiles and roller size
    running-in
    Tapered roller bearings are produced by SKF in many designs and sizes to match their many uses. These can be grouped as follows
    • single row tapered roller bearings (fig 3)
    • paired single row tapered roller bearings (fig 4)
    • double row tapered roller bearings (fig 5), and
    • four-row tapered roller bearings (fig 6).
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