NACHI BEARINGS LTD

NSK 6900 Bearing

 

Tapered Roller Bearing Assemblies

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.

TIMKEN 33890-90076  Tapered Roller Bearing Assemblies
TIMKEN 33890-90076 Tapered Roller Bearing Assemblies
LM508700
JLM508710
TIMKEN 33890-90015  Tapered Roller Bearing Assemblies
TIMKEN 33890-90015 Tapered Roller Bearing Assemblies
METRIC
167.100 Kg
TIMKEN 33889-90097  Tapered Roller Bearing Assemblies
TIMKEN 33889-90097 Tapered Roller Bearing Assemblies
2.165 in
Cylindrical bore
TIMKEN 782-902A9  Tapered Roller Bearing Assemblies
TIMKEN 782-902A9 Tapered Roller Bearing Assemblies
29000
29177
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