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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  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 , 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:
1.roller end/flange contact area
2.raceways profile
3.consistency of profiles and roller size
4.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
1.single row tapered roller bearings
2.paired single row tapered roller bearings
3.double row tapered roller bearings
4.four-row tapered roller bearings
The SKF standard range of single row tapered roller bearings (fig 1) covers the popular sizes of metric bearings manufactured to ISO **5:***7 and inch bearings which follow the ANSI/ABMA standard *9.*****4. The range can be
divided into :
1.bearings for general use
2.high-performance bearings manufactured to the CL7C specifications
3.bearings with a flanged outer ring
4.paired single row tapered roller bearings.
For bearing arrangements operating in particularly difficult environments, for example, where the lubricating oil may be highly contaminated, where high operating temperatures prevail or where heavy deforming loads can be expected,
SKF can supply particularly wear-resistant tapered roller bearings. Details are available on request. .Standard design
SKF tapered roller bearings for general use, including SKF bearings to Q specifications, have been optimized with regard to
1.sliding contact surfaces of the guide flange of the inner ring
2.roller end faces
3.raceway contact profile.
In addition, highly accurate manufacturing processes make adjustment of the bearings against each other more reliable, which dramatically improves performance especially during the very first hours of operation. .
We have almost every models of  Imperial  Single-Row Tapered Roller Bearing  with brands: SKF,NSK,NTN,FAG,TIMKEN,INA,IKO,KOYO,NACHI   .So,pls contact us if you have any needs.