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.

NTN T-67989/67920D+A tapered roller bearings
ARN3062T2
30
85 mm x 140 mm x 38 mm NSK JHM516849/JHM516810 tapered roller bearings
6908-2RU
40x62x12
Fersa 687/672 tapered roller bearings
6800Z
10x19x5
KOYO 593/592 tapered roller bearings
6806-2RS
30x42x7
88 mm x 130 mm x 29 mm FBJ JM716648/JM716610 tapered roller bearings
6800-2RS
10x19x5
105 mm x 145 mm x 25 mm ZVL 32921A tapered roller bearings
NJ2240E
200x360x98
NTN E-LM665949/LM665910CD+A tapered roller bearings
6236-M
180x320x52
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