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 32212R tapered roller bearings	BEARINGS LIMITED	8.7	BEARINGS LIMITED	N/A
FAG 31322-X-DF-A140-180 tapered roller bearings	B00308	BEARINGS LIMITED	Bearings	BEARINGS LIMITED
38,1 mm x 79,375 mm x 25,4 mm FBJ 26878/26822 tapered roller bearings	M06110	PEER BEARING CO.	N/A	8865590631711
215,9 mm x 365,049 mm x 79,372 mm Timken EE420850/421437 tapered roller bearings	Precision Ball Beari	31171531	Open	Steel
190 mm x 260 mm x 45 mm FAG 32938 tapered roller bearings	Ball	Single Row Ball Bear	0.23	2 Seals
69,85 mm x 112,712 mm x 33 mm Gamet 124069X/124112X tapered roller bearings	0.0	0.708	1.8	Flanged
Gamet 123077X/123120H tapered roller bearings	5.512 Inch \| 140 Mil	Straight	CONSOLIDATED BEARING	Cylindrical Roller B
Timken 3779/3729D+X1S-3779 tapered roller bearings	DODGE	0782475150571	0.0	B04311
AST LM29748/LM29710 tapered roller bearings	BEARINGS LIMITED	0888569041623	BEARINGS LIMITED	N/A
127 mm x 182,562 mm x 38,1 mm NSK 48290/48220 tapered roller bearings	0.082	QA1 PRECISION PROD	QA1 PRECISION PRODUC	B04264
28,575 mm x 76,2 mm x 29,997 mm Timken 3198/3129 tapered roller bearings	M06110	Cast Polymer	CTB104SSG	Pillow Block Bearing
49,212 mm x 103,188 mm x 44,475 mm FBJ 5395/5335 tapered roller bearings	NU1036M1.C3	Yes	Cylindrical Roller B	31171547