Tapered Roller Bearing Assemblies

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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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
TIMKEN L357049-90047 Tapered Roller Bearing Assemblies	240 mm	320 mm	60 mm	2.1 mm
TIMKEN HM129848-90320 Tapered Roller Bearing Assemblies	Mounted Bearing	22213	60 mm	Metric
TIMKEN L357049-90045 Tapered Roller Bearing Assemblies	190 mm	400 mm	132 mm	5 mm
TIMKEN 42690-50000/42623B-50000 Tapered Roller Bearing Assemblies	495	497P	Imperial	Stamped Steel
TIMKEN 42690-50000/42620-50000 Tapered Roller Bearing Assemblies	340 mm	580 mm	190 mm	5 mm
TIMKEN 42690-50000/42620B-50000 Tapered Roller Bearing Assemblies	320 mm	580 mm	208 mm	5 mm
TIMKEN HM129848-90318 Tapered Roller Bearing Assemblies	240 mm	440 mm	120 mm	4 mm
TIMKEN 580-90134 Tapered Roller Bearing Assemblies	4-7/16 in	Felt Type	Split Cylindrical Retained Type	Four-Bolt Plummer Block
TIMKEN NP697136-K0928/NP592766-K0928 Tapered Roller Bearing Assemblies	320 mm	480 mm	121 mm	4 mm
TIMKEN L327249-90037 Tapered Roller Bearing Assemblies	120 mm	215 mm	76 mm	2.1 mm
TIMKEN 32008X 90KA1 Tapered Roller Bearing Assemblies	200 mm	310 mm	82 mm	2.1 mm
TIMKEN X32006X-K0000/YGA32006X-K0000 Tapered Roller Bearing Assemblies	320 mm	580 mm	150 mm	5 mm