Tapered Roller Bearing Assemblies

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Tapered roller bearings are rolling element bearings that can support axial forces (i.e., they are good thrust bearings) as well as radial forces.
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.

Bearing Number Bore Dia Outer DIa Width Size
TIMKEN L540049-90014 Tapered Roller Bearing Assemblies 204FFSG 20.000 mm 47.0000 mm 14.0 mm
TIMKEN HM129848-90382 Tapered Roller Bearing Assemblies 12.000 mm 32.0000 mm 10.00 mm 0.64 mm
TIMKEN NP950329-90KA2 Tapered Roller Bearing Assemblies 130.000 mm 200.0000 mm 33.00 mm 2.00 mm
TIMKEN L570649-90018 Tapered Roller Bearing Assemblies 20.000 mm 52.0000 mm 22.20 mm 1.00 mm
TIMKEN L570649-30038/L570610-30038 Tapered Roller Bearing Assemblies 260.000 mm 400.0000 mm 65.00 mm 3.00 mm
TIMKEN L555249-30178/L555210-30178 Tapered Roller Bearing Assemblies 1 in 1.4375 in 0.8750 in 2.7500 in
TIMKEN L555249-902A5 Tapered Roller Bearing Assemblies 240.000 mm 360.0000 mm 56.00 mm 2.50 mm
TIMKEN L555249-902A3 Tapered Roller Bearing Assemblies 240.000 mm 360.0000 mm 56.00 mm 2.50 mm
TIMKEN L570649-20000/L570610-20000 Tapered Roller Bearing Assemblies 160.000 mm 240.0000 mm 38.00 mm 2.00 mm
TIMKEN L540049-90044 Tapered Roller Bearing Assemblies 45.000 mm 100.0000 mm 39.70 mm 1.50 mm
TIMKEN L540049-60650/L540010-60650 Tapered Roller Bearing Assemblies 1 1/4 in 2.8346 in 1.688 in 0.7480 in
TIMKEN L540049-90033 Tapered Roller Bearing Assemblies 40 mm 31.8 mm 14.3 mm 88.9 mm
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