Tapered Roller Bearing

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SKF Four-Row Tapered Roller Bearings can accommodate combined (radial and axial) loads at low to moderate speeds. They are used almost exclusively in work roll applications such as rolling mills.

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The SKF assortment of matched single row tapered roller bearings (fig. 1) is based on popular sizes of single row tapered roller bearings. Depending on the application requirements, matched tapered roller bearings are available in different designs and variants:

• Matched bearings arranged face-to-face
• matched bearings arranged back-to-back
• Matched bearings arranged in tandem
• Basic design and SKF Explorer bearings

The matched bearings listed in the product tables constitute the basic SKF assortment. SKF can supply other matched bearings on request.

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SKF Single Row Tapered Roller Bearings 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 (apex point A, fig. 2) to provide a true rolling action and therefore low frictional moments during operation. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle, which is usually between 10° and 30°, is related to the calculation factor e (from the product table): the larger the value of e, the larger the contact angle.

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SKF manufactures double row tapered roller bearings in the TDO (fig. 1) and TDI (fig. 2) designs, in many variants and with different features. Depending on the design, these bearings can accommodate heavy radial loads, axial loads in both directions and have a high degree of stiffness. Double row tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry, e.g. tunnelling machines.

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With a wide range of designs to choose from, SKF Tapered Roller Bearings are also customizable to match your specific speed, load, contamination, temperature or vibration conditions.

SKF Tapered Roller Bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.

SKF Tapered Roller Bearings are also made to Explorer class. SKF Explorer combines our expertise in bearing design, tribology, metallurgy, lubrication and manufacturing. SKF Explorer tapered roller bearings are typically used in bearing solutions where there is a need to increase performance, reduce friction or increase power density in applications.

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