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Taper Roller Bearings

 Taper Roller Bearings
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Size/ Item
d
D
B
dyn.
stat.
grease
oil
kg
30302 15 42 14.25 22400 20000 9000 13000 0.095
30203 17 40 13.25 18600 9000 13000 0.075
30303 17 47 15.25 28100 25000 8500 12000 0.13
32303 17 47 20.25 34700 33500 8500 11000 0.17
32004 x 20 42 15 24200 27000 8500 12000 0.097
30204 20 47 15.25 27500 28000 8000 11000 0.12
30304 20 52 16.25 34100 32500 8000 11000 0.17
32304 20 52 22.25 44100 45500 7500 10000 0.23
320/22 x 22 44 15 25100 29000 8000 11000 0.1
T2CC 022 22 47 17 34100 36500 8000 11000 0.14
32005 25 47 15 27000 32500 8000 11000 0.11
30205 25 52 16.25 30800 33500 7500 10000 0.15
32205 B 25 52 19.25 35800 44000 7000 9500 0.19
33205 25 52 22 47300 56000 6700 9000 0.23
30305 25 62 18.25 44600 43000 6700 9000 0.26
31305 25 62 18.25 38000 40000 5600 7500 0.26
32305 25 62 25.25 60500 63000 6000 8000 0.36
320/28 x 28 52 16 31900 38000 7000 9500 0.15
322/28 B 28 58 20.25 41800 50000 6300 8500 0.25
32006 x 30 55 17 35800 44000 6700 9000 0.17
30206 30 62 17.25 40200 44000 6300 8500 0.23
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Tapered roller bearings are roller bearings having a capacity to carry large axial forces. They are good thrust bearings which can sustain large radial forces as well.

In taper roller bearings, the inner ring raceway and outer ring raceway are actually segments of cones where rollers are made with a taper so that the conical surfaces of the raceways and roller axes, if projected, would eventually meet at a common point on the main axis of the bearing. This conical geometry is used because it gives a bigger and better contact patch permitting greater loads to be carried than with spherical ball bearings. The tangential speeds of the surfaces of rollers are actually same as their raceways along the entire length of the contact patch. This results in prevention of differential scrubbing. The rollers are guided by a flange on the inner ring which stops them from sliding out at high speeds owing to the momentum generated by them.

Tapered roller bearings are separable and are made up of outer ring, inner ring and the roller assembly. The inner ring and roller assembly, which cannot be separated, is called the cone, while outer ring is called the cup.

Taper roller bearings are used in back-to-back pairs in car and vehicle wheel bearings, where they are subjected to large radial and axial forces.

At Precision Bearings, we have tapered roller bearings available with specifications as provided in the table above.