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
NTN CRI-1561 tapered roller bearings	25 Degree	31171531	Ceramic	Ball Bearing
Timken H242649/H242610CD+H242649XB tapered roller bearings	Bearing	Non-expansion	14.8 Inch \| 375 Mill	1 Inch
63,5 mm x 112,712 mm x 30,048 mm FAG K3982-3920 tapered roller bearings	0800675166915	N/A	0.0	PT INTERNATIONAL
220 mm x 300 mm x 51 mm CYSD 32944 tapered roller bearings	REGAL BELOIT	0.0	0662461314388	Mounted Units &
KOYO 47TS483429 tapered roller bearings	1.457 Inch \| 37 Mill	Ball Bearing	Brass	Open
40 mm x 90 mm x 23 mm SNR 30308A tapered roller bearings	Ball Bearing	SKF	Deep Groove \| Grease	Metric
206,375 mm x 282,575 mm x 46,038 mm KOYO 67985/67920 tapered roller bearings	Triple Lip	4 Bolt Flange	307 Series	47.16 LB
30,213 mm x 62 mm x 20,638 mm NSK 15120/15245 tapered roller bearings	N/A	DODGE	0.0	ABB MOTORS AND MECHA
48 mm x 90 mm x 23 mm KOYO HC ST4890 tapered roller bearings	B04264	0.2	0.0	N/A
25 mm x 62 mm x 17 mm NSK 30305CN tapered roller bearings	Concentric Collar	12.712	22215	3/4 Inch
NTN CRD-8010 tapered roller bearings	8.465 Inch \| 215 Mil	Metric	3 mm	6.4 kN
100 mm x 145 mm x 22,5 mm KOYO T4CB100 tapered roller bearings	M06288	N/A	Mounted Units &	QM INDUSTRIES