Double direction taper roller thrust bearings

Double direction taper roller thrust bearings

Double direction axial tapered roller bearings can support very high axial forces in both directions. In these ready-to-fit bearings, the axial internal clearance is set by the ring between the housing locating washers. The bearings are used, for example, in blooming stands and section rolling stands. The metric main dimensions and designations Z-5..TA2 of these special bearings are not standardised.
Size range: 140 - 670 mm (Bore dimension)

Double direction taper roller thrust bearings

Taper roller thrust bearings of the double direction type are mainly used together with multi-row cylindrical roller bearings in rolling mill applications. Those bearings with a plane shaft washer(3) are the more popular as they are able to accommodate slight eccentricities of the shaft with re spect to the housing bore, of the order of the radial internal clearance of the radial bearing with which they are used. A spacer sleeve is arranged between the two hous ing washers. This is dimensioned so that the cover screws of the chock can be fully tightened and no special spring adjust- ment of the bearing is required.

DTTRB1605866469 - 副本

The double direction taper roller thrust bearings with tapered raceways on the shaft and housing washers (4) generally have a higher axial load carrying capacity than the bearings with a plane shaft wash- er and are also able to radially locate the shaft to a certain extent.if the load carrying capacity of these bearings is inadequate with respect to the requisite life, the double row taper roller bearings with large contact angle listed on pages 532 to 535 can be used.

As the double direction taper roller thrust bearings are normally mounted with a loose fit on the roll neck as well as in the chock, the shaft washer of most bearings has one or two locating slots.It is then possible to prevent the shaft washer from 

rotating on its seating by using keys which engage the slots or by other similar means.

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