Tapered roller bearing BT2B series

tapered roller bearing
tapered roller bearing
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Rolling element
tapered roller
radial, axial
Other characteristics
low-friction, for heavy loads
Inside diameter

Min.: 101.6 mm (4 in)

Max.: 2,000 mm (78.74 in)

Outside diameter

Min.: 146 mm (5.75 in)

Max.: 2,000 mm (78.74 in)


Min.: 49 mm (1.929 in)

Max.: 393.7 mm (15.5 in)


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. Product details Designs and variants Bearing data Loads Temperature limits Mounting Designation system Features and benefits High load carrying capacity Double row tapered roller bearings are suitable for heavy radial and axial loads. 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 tables): the larger the value of e, the larger the contact angle. Axial loads in both directions Double row tapered roller bearings locate the shaft in both directions with a specific axial clearance or preload.  High stiffness Double row tapered roller bearings provide a stiff bearing arrangement. Low friction The optimized roller end design and surface finish on the flange ( fig. 3 ) promote lubricant film formation, resulting in lower friction. This also reduces frictional heat and flange wear. In addition, the bearings can better maintain preload and run at reduced noise levels. Long service life


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