PRECISION BEARING CORP

tapered roller bearings

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.

KOYO 664/652 tapered roller bearings
6409
45x120x29
Timken 18690/18620DC+X1S-18690 tapered roller bearings
3.75 in
Kevlar Packing Seal
63,5 mm x 104,775 mm x 22 mm Timken 39250/39412 tapered roller bearings
68/950
950x1150x90
Gamet 164127X/164196XG tapered roller bearings
Cylindrical Bore
Open
NTN 423034 tapered roller bearings
68/710
710x870x74
27 mm x 53 mm x 43 mm SNR FC40650S01 tapered roller bearings
6811N
55x72x9
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