Tapered Roller Bearings

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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.

Fersa 17887/17831 tapered roller bearings

63.00 mm 3720 lbf
-5.1 mm 58.93 mm

45.618 mm x 82.931 mm x 25.400 mm NACHI H-25590/H-25523 tapered roller bearings

Stamped Steel 1.8
283000 lbf 33.5 Kg

38,1 mm x 82,931 mm x 25,4 mm Timken 25572/25520 tapered roller bearings

Medium Series Eight-Bolt Plummer B
013992071651 356772 lbf

Timken HH221430/HH221410D+HH221430XA tapered roller bearings

Split Cylindrical Re 013992030948
9.9 in Kevlar Packing Seal

Toyana 33013 A tapered roller bearings

Imperial 1.44
17.5 1.52 mm

Toyana 43125/43312 tapered roller bearings

0.3959 170
865.000 mm 180

44,45 mm x 73,025 mm x 18,258 mm ISO L102849/10 tapered roller bearings

0.4 6.35 mm
11.9 mm 12500

Toyana 87762/87111 tapered roller bearings

Mounted Bearing 3.87 in
0.0043 7.630 in

130 mm x 280 mm x 66 mm NKE 31326-DF tapered roller bearings

Imperial 0.063
66.50 mm 15.875 mm

Gamet 131095/131150H tapered roller bearings

4630 rpm 809.30 lbf
2 in LSE200BR
1/18