Tapered Roller Bearings

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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.

The larger the half angles of these cones the larger the axial force that the bearing can sustain.Tapered roller bearings are separable into a cone assembly and a cup. The non-separable cone assembly consists of the inner ring, the rollers, and a cage that retains & evenly spaces the rollers. The cup is simply the outer ring. Internal clearance is established during mounting by the axial position of the cone relative to the cup, although preloaded installations without clearance are common.

KOYO 47TS382719A tapered roller bearings

Round Uncoated
3461 lb 43.4 mm

Timken 3490/3423D+X1S-3490 tapered roller bearings

310mm 23234-e1-k-tvpb-qbl
110mm Standard

342,9 mm x 533,4 mm x 76,2 mm KOYO EE971354/972100 tapered roller bearings

Standard Duty 048035
3.5300 in 5 in

Toyana 30207 tapered roller bearings

4.9688 in Single Lip Contact w
Lubrication Fitting Browning - Air Handl

45 mm x 100 mm x 36,5 mm KOYO KETRD091004UR4 tapered roller bearings

5-5/32" to 7.2500 in
Two-Bolt Base Non-Expansion Bearin

346,075 mm x 488,95 mm x 95,25 mm SKF HM262749/710 tapered roller bearings

52100 Bearing Steel Four-Bolt Flange
Gray Painted 1.9375 in

Toyana JL730646/12 tapered roller bearings

None C954
125000 250 fp/min

355,6 mm x 482,6 mm x 55,56 mm ISB 306/355.6-1 tapered roller bearings

470 kg Circular Pocket Sepa
-65 to +250 &de 8 mm

Toyana 3586/3525 tapered roller bearings

4368 lb UL, AFBMA, AGMA, ASM
3.5600 in Uncoated

NTN 423136E1 tapered roller bearings

5.9000 in 3.0800 in
Labyrnith non-contac 2.7000 in

30,162 mm x 69,85 mm x 25,357 mm NSK 2559/2523 tapered roller bearings

1.0625 in 6500 RPM
4368 lb 36.8 mm
1/18