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.

Toyana 25877/25820 tapered roller bearings
6801
12x21x5
Toyana 32008 AX tapered roller bearings
6206-Z
30x62x16
347.662 mm x 469.9 mm x 280.194 mm SKF 331807 tapered roller bearings
GIHRK 20 DO
20x35x16
KOYO 334/332A tapered roller bearings
9106PPG
30x55x13
Fersa 482/472X tapered roller bearings
683
3x7x2
100 mm x 145 mm x 22,5 mm ZVL T4CB100 tapered roller bearings
5209-2RS
45x85x30.2
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