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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
15103S 15245 26.162 62.000 19.050 19.939 14.288 0.8 1.2 44.6 50.7 6400 8600
L44649R L44610 26.988 50.292 14.224 14.732 10.668 3.6 1.2 31.2 37.0 7800 10000 轻型
J15585 15520 28.000 57.150 17.462 17.462 13.495 3.5 1.5 38 43.5 7000 9000
15590 15520 28.575 57.150 17.462 17.462 13.495 3.6 1.6 37.8 57.1 7000 9400
1988R 1922 28.575 57.150 19.845 19.355 15.875 3.6 1.6 48.8 50.7 7000 9300
15112 15245 28.575 62.000 19.050 20.638 14.288 3.6 1.2 44.6 50.7 6400 8600
15113 15245 28.575 62.000 19.050 20.638 14.288 0.8 1.2 44.6 50.7 6400 8600
M86647R M86610 28.575 64.292 21.432 21.432 16.670 1.6 1.6 55.2 70.7 6400 8500 中型
2689 2631 28.575 66.421 23.812 25.433 19.050 1.2 1.2 67.0 75.2 6500 8700
02474 02420 28.575 68.262 22.225 22.225 17.462 0.8 1.6 51.0 61.1 6000 8000
26112 26283 28.575 72.000 19.000 18.923 15.875 1.6 1.6 47.5 49.6 5900 7800
41125 41286 28.575 72.626 24.608 24.257 17.462 4.8 1.6 61.8 60.5 6100 8100
41126 41286 28.575 72.626 24.608 24.257 17.462 1.6 1.6 61.8 60.5 6100 8100
3192 3120 28.575 72.626 30.162 29.997 23.812 3.6 3.2 78.8 89.3 5800 7700
3198 3120 28.575 72.626 30.162 29.997 23.812 1.2 3.2 78.8 89.3 5800 7700
02872 02820 28.575 73.025 22.225 22.225 17.468 0.8 3.2 55.0 65.7 5500 7400
43112 43312 28.575 79.375 25.400 24.074 17.462 0.8 1.6 69.4 72.5 5500 7300
L45449 L45410 29.000 50.292 14.224 14.732 10.668 3.6 1.2 28.9 37.2 7600 10000 轻型
2690 2631 29.367 66.421 23.812 25.433 19.050 3.6 1.2 67.0 75.2 6500 8700
17118 17244 29.987 62.000 16.002 16.566 14.288 1.6 1.6 38.0 40.6 6700 8900
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