Tapered Roller bearings double-row

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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.The inner and outer ring raceways are segments of cones and the rollers are tapered so that the conical surfaces of the raceways, and the roller axes, if projected, would all meet at a common point on the main axis of the bearing. This geometry makes the motion of the cones remain coaxial, with no sliding motion between the raceways and the OD of the rollers.

This conical geometry creates a linear contact patch which permits greater loads to be carried than with spherical (ball) bearings, which have point contact. The geometry means that the tangential speeds of the surfaces of each of the rollers are the same as their raceways along the whole length of the contact patch and no differential scrubbing occurs.

The rollers are stabilized and restrained by a flange on the inner ring, against which their large end slides, which stops the rollers from popping out due to the "pumpkin seed effect" of their conical shape.

Bearing Number Bore Dia Outer DIa Width Size
NSK grs ps2 Bearing 80 mm 165 mm 22 mm 1 mm
H247549D H247510 Tapered Roller bearings double-row 14000 14118 14272 Imperial
LM451349D LM451310 Tapered Roller bearings double-row 160 mm 295 mm 35 mm 2 mm
M249748D JM249712 Tapered Roller bearings double-row H859000 H859049 H859010 Imperial
EE128114D 128161 Tapered Roller bearings double-row 115 mm 240 mm 28 mm 1.5 mm
52400D 52618 Tapered Roller bearings double-row 90 mm 210 mm 25 mm 1.5 mm
EE234161D 234220 Tapered Roller bearings double-row 90 mm 210 mm 25 mm 1.5 mm
52400D 52618 Tapered Roller bearings double-row Mounted Bearing 22217 2-15/16 in Imperial
HM237546D HM237510 Tapered Roller bearings double-row FSNT 512-610 21310 SR110X10.5 Labyrinth
93801D 93126 Tapered Roller bearings double-row 25 mm 62 mm 17 mm 25 º
EE275109D 275158 Tapered Roller bearings double-row 130 mm 190 mm 25 mm 1.5 mm
HM265049TD HM265010 Tapered Roller bearings double-row 180 mm 240 mm 25 mm 1.5 mm
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