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 L183449-90010  Tapered Roller Bearing Assemblies
TIMKEN L183449-90010 Tapered Roller Bearing Assemblies
935
944A
TIMKEN L183448-90011  Tapered Roller Bearing Assemblies
TIMKEN L183448-90011 Tapered Roller Bearing Assemblies
1-3/16 in
Viton Single Lip
TIMKEN 15520RB-90020  Tapered Roller Bearing Assemblies
TIMKEN 15520RB-90020 Tapered Roller Bearing Assemblies
LM757000
LM757049
TIMKEN HM129848-90171  Tapered Roller Bearing Assemblies
TIMKEN HM129848-90171 Tapered Roller Bearing Assemblies
HH926749A
Imperial
TIMKEN HM129848-90170  Tapered Roller Bearing Assemblies
TIMKEN HM129848-90170 Tapered Roller Bearing Assemblies
Open
Cylindrical Bore
TIMKEN 96876TD-90073  Tapered Roller Bearing Assemblies
TIMKEN 96876TD-90073 Tapered Roller Bearing Assemblies
M236800
M236849
TIMKEN H249148-902B3  Tapered Roller Bearing Assemblies
TIMKEN H249148-902B3 Tapered Roller Bearing Assemblies
50 mm
Kevlar Packing Seal
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