NTN DRIVESHAFT ANDERlu, INC.

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.Tapered roller bearings are separable into a cone assembly and a cup. The non-separable cone assembly consists of the inner ring, the rollers, and a cage that retains & evenly spaces the rollers. The cup is simply the outer ring. Internal clearance is established during mounting by the axial position of the cone relative to the cup, although preloaded installations without clearance are common.

KOYO HM220149/HM220110 tapered roller bearings
Tapered Roller
Metric System
28 mm x 63 mm x 22,25 mm KBC TR286322HL tapered roller bearings
7.000 in
16.5 in
SNR 31304/2T tapered roller bearings
2400
1120
22,225 mm x 58,738 mm x 19,355 mm ISO 1975/1932 tapered roller bearings
Tapered Roller
Metric System
260 mm x 480 mm x 80 mm ISO 30252 tapered roller bearings
Flange Type
Compact Type
30 mm x 72 mm x 27 mm SNR 32306A tapered roller bearings
2.00 mm
2800 rpm
Toyana H238148/10 tapered roller bearings
Open Type
In Stock
76,2 mm x 127 mm x 23,012 mm Timken 34300/34500 tapered roller bearings
Flange Type
Compact Type
190 mm x 340 mm x 92 mm KOYO 32238JR tapered roller bearings
Tapered Roller
Metric System
100 mm x 180 mm x 46 mm Gamet 180100/ 180180 tapered roller bearings
7.000 in
16.5 in
40 mm x 80 mm x 20,94 mm Timken 28158/28315B tapered roller bearings
2400
1120
NTN 423080 tapered roller bearings
Bearings with Housin
Flanged Pilot Type
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608zz Bearing
l44649 Bearing
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lm20uu Bearing