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.

NSK grs ps2 Bearing

8790 lbf 147475 lbf
3.5 in 16.7 in

H247549D H247510 Tapered Roller bearings double-row

19 Kg 324 mm
371 kN 63

H239649D H239612 Tapered Roller bearings double-row

8 16 mm
ZEN 5 mm

M255449D M255410 Tapered Roller bearings double-row

SL185020 140,2 mm
67 mm 100

H228649D H228610 Tapered Roller bearings double-row

20 mm 62 mm
22,225 mm 83 mm

M249748D JM249712 Tapered Roller bearings double-row

31 31 mm
75 75 mm

13176D 13318 Tapered Roller bearings double-row

-40 °C 2 mm
Click here Bearing

EE128114D 128161 Tapered Roller bearings double-row

0,78 280
180 64

EE127097D 127138 Tapered Roller bearings double-row

90 mm 90
90 mm 1050 kN

52400D 52618 Tapered Roller bearings double-row

19 mm 0,371 Kg
30x72x19 72

74512D 74850 Tapered Roller bearings double-row

10,98 kN 16 mm
30 mm 30
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