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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
Timken 469/452D+X2S-469 tapered roller bearings	Triplex-Tandem and B	Precision Ball Beari	15 Degree	ABEC 7 \| ISO P4
FAG 32036-X-XL-DF-A320-370 tapered roller bearings	0605790348716	B04144	KOYO	KOYO
49,212 mm x 90 mm x 22,225 mm Timken 365-S/362-B tapered roller bearings	Bearings	QA1 PRECISION PROD	1.5	0.0
68,262 mm x 110 mm x 21,996 mm NSK 399A/394A tapered roller bearings	D-Lock	No Coating	Baldor-Dodge	Max Life Cage
AST HM88649/HM88610 tapered roller bearings	TIMKEN	172.814	N/A	B04336
44,45 mm x 95,25 mm x 28,3 mm ISO HM903249A/10 tapered roller bearings	Teflon Labyrinth	1 Piece Solid	Flanged	4 Bolt Square Flange
NTN CRO-8414 tapered roller bearings	ASAHI BEARINGS	M06110	N/A	0.0
28 mm x 58 mm x 19 mm KOYO 322/28R tapered roller bearings	N/A	4547359273021	NTN	NTN
85.725 mm x 168.275 mm x 56.363 mm NACHI 841/832 tapered roller bearings	9.8 Inch \| 248.9 Mil	23.154	41.8	Pillow Block
549,097 mm x 692,15 mm x 80,962 mm KOYO L476548/L476510 tapered roller bearings	0644075235709	N/A	7.86	No
49,987 mm x 89,98 mm x 25,4 mm Timken 28579/28520 tapered roller bearings	Take Up	6.125 Inch \| 155.575	Bearing	0782475018505
NTN CRI-10702 tapered roller bearings	Duplex-Back to Back	B04270	31171531	Ball Bearing