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Inch Tapered Roller Bearings

Tapered roller bearings are rolling element bearings that can support axial forces (i.e., they are good thrust bearings) as well as radial forces

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.

220px-Tapered-roller-bearing_din720_120.png           220px-Tapered-roller-bearing_din720_ex.png

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.

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.

Applications:

In many applications tapered roller bearings are used in back-to-back pairs so that axial forces can be supported equally in either direction.

Pairs of tapered roller bearings are used in car and vehicle wheel bearings where they must cope simultaneously with large vertical (radial) and horizontal (axial) forces. Tapered roller bearings are commonly used for moderate speed, heavy duty applications where durability is required. Common real world applications are in agriculture, construction and mining equipment, sports robot combat, axle systems, gear box, engine motors and reducers, propeller shaft, railroad axle-box, differential, wind turbines, etc.


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SelectInquiryBearing NoDimension(mm)Rated load(KN)Limiting speed Type
Inner RingOuter RingdDTBCRminrminDynamic CrStatic CorGreaseOil
HM89449 HM89411 36.487 76.200 29.370 28.575 23.020 3.6 0.8 79.5 107 5400 7200 中重型
26877R 26822 36.487 79.375 23.812 25.400 19.050 0.8 0.8 81.1 105 5000 6700
16143 16284 36.512 72.238 20.638 20.638 18.575 3.5 1.3 45 61 4800 6300
HM89448 HM89410 36.512 36.512 29.370 28.575 23.020 0.8 3.3 88.2 106 4800 6300 中重型
3479 3420 36.512 79.375 29.370 29.771 23.812 0.8 3.2 87.4 105 5200 6900
3878 3820 36.512 85.725 30.162 30.162 23.812 0.8 3.2 108 136 4800 6400
44143 44348 36.512 88.501 25.400 23.698 17.462 2.4 1.6 75.3 84.4 3900 5500
JL69349 JL69310 38.000 63.000 17.000 17.000 13.500 sp*) sp*) 43.5 58.2 6000 8000 轻窄系列
13889 13830 38.100 63.500 12.700 11.908 9.525 1.6 0.8 25.5 33.1 5800 7700
13889 13836 38.100 65.088 12.700 11.908 9.525 1.6 0.8 25.5 33.1 5800 7700
LM29748 LM29710 38.100 65.088 18.034 18.288 13.970 sp*) 1.2 42.9 56.5 5800 7800 中轻型
LM29749 LM29711 38.100 65.088 19.812 18.288 15.748 2.4 1.2 42.9 56.5 5800 7800 中轻型
13687 13621 38.100 69.012 19.050 19.050 15.083 2.0 2.4 49.2 62.0 5600 7500
13686 13620 38.100 69.012 26.195 26.195 15.083 1.5 0.8 49.5 62 5000 7000
19150R 19281 38.100 71.438 15.875 16.520 11.908 1.6 1.0 46.1 53.8 5700 7600
19150R 19283 38.100 71.996 17.018 16.520 14.288 1.6 1.6 46.1 53.8 5700 7600
16150 16282 38.100 71.996 19.000 20.638 14.237 3.6 1.6 49.7 61.3 5600 7400
16150 16284 38.100 72.238 20.638 20.638 15.875 3.6 1.2 49.7 61.3 5600 7400
16150 16283 38.100 72.238 23.812 20.638 19.050 3.6 2.4 49.7 61.3 5600 7400
2788R 2735X 38.100 73.025 23.812 25.654 19.050 3.6 0.8 74.1 92.2 5400 7200
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