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
Toyana 32236 A tapered roller bearings	B00234	0	0.0	Bearings
38,1 mm x 63,5 mm x 11,908 mm ISO 13889/13830 tapered roller bearings	2.063 Inch \| 52.4 Mi	Bearing	Inch	0.012
170 mm x 360 mm x 75 mm NTN CR-3463 tapered roller bearings	0.0	Precision Ball Beari	8482.10.50.28	Yes
Fersa 15100/15250 tapered roller bearings	171.7401	Ball Bearing	Single Row Ball Bear	C4-Extra Loose
320 mm x 480 mm x 100 mm NKE 32064-X tapered roller bearings	1.26 Inch \| 32 Milli	Not Rated	8482.50.00.00	1 mm
80,962 mm x 139,992 mm x 80,134 mm Timken 581D/572+Y5S-572 tapered roller bearings	Yes	INA	1.378 Inch \| 35 Mill	Metric
406.4 mm x 580 mm x 164.275 mm SKF BT2B 334085/HA1VA901 tapered roller bearings	0883450403962	0.0	QM INDUSTRIES	N/A
53.975 mm x 98.425 mm x 21.946 mm NACHI 389A/382 tapered roller bearings	Bearings	N/A	RIT BEARING	RIT BEARING
50 mm x 110 mm x 27 mm NKE 31310-DF tapered roller bearings	NTN	Roller Bearings	4547359514681	N/A
863.6 mm x 1130.3 mm x 323.85 mm SKF 331590 tapered roller bearings	0.708	Mounted Units &	0808250416769	AMI BEARINGS
140 mm x 210 mm x 42 mm FBJ 32028 tapered roller bearings	33.8	N/A	SCHAEFFLER GROUP	B04336
60,325 mm x 130,175 mm x 33,338 mm NTN 4T-HM911245/HM911210 tapered roller bearings	QM INDUSTRIES	19.522	Pillow Block	3.188 Inch \| 80.975