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
KOYO HM911242R/HM911210 tapered roller bearings	Mounted Units &	SEALMASTER	0.0	0.454
Toyana L305649/10 tapered roller bearings	0.0	M06288	KAYDON	N/A
50,8 mm x 112,712 mm x 30,048 mm NTN 4T-3975/3920 tapered roller bearings	Bearing	0.0591 in	UEL208-108D1	Eccentric Collar
457,2 mm x 573,088 mm x 74,612 mm ISO L570649/10 tapered roller bearings	SKF	0	0.0	B00308
71,438 mm x 127 mm x 36,17 mm FBJ 567A/563 tapered roller bearings	0.0	Angular Contact Ball	TIMKEN	1.575 Inch \| 40 Mill
68,262 mm x 120 mm x 29,007 mm Timken 480/473 tapered roller bearings	737586	4 Bolt Pillow Block	REGAL BELOIT	Inch
75 mm x 130 mm x 33,5 mm Gamet 133075/133130P tapered roller bearings	ABB MOTORS AND MECHA	Yes	4.688 Inch \| 119.075	Inch
Fersa 14125A/14283 tapered roller bearings	1.14	31171501	5802693	LINK BELT
30 mm x 72 mm x 19 mm KOYO 30306JR tapered roller bearings	CONSOLIDATED BEARING	0644075138109	Metric	1.496 Inch \| 38 Mill
70 mm x 110 mm x 25 mm SKF 32014X/QDF tapered roller bearings	M06288	8483.20.40.80	Bearing	3.25 Inch \| 82.55 Mi
200 mm x 310 mm x 70 mm SKF 32040 X tapered roller bearings	NTN	M06110	N/A	Bearings
104,775 mm x 180,975 mm x 48,006 mm ISO 787/772 tapered roller bearings	2.441 Inch \| 62 Mill	31171500	INA	2.441 Inch \| 62 Mill