Roulements à rouleaux sphériques

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Spherical roller bearings consist of an inner ring with two raceways inclined at an angle to the bearing axis, an outer ring with a common spherical raceway, spherical rollers, cages and, in certain designs, also internal guide rings or center rings. The bearings can also be sealed.
The spherical roller bearing was invented by engineer Arvid Palmgren and was introduced on the market 1919 by SKF. The design of the bearing that Arvid Palmgren invented is similar to the design that is still in use in modern machines.A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring. The misalignment is possible due to the spherical internal shape of the outer ring and spherical rollers. Despite what their name may imply, spherical roller bearings are not truly spherical in shape. The rolling elements of spherical roller bearings are mainly cylindrical in shape, but have a (barrel like) profile that makes them appear like cylinders that have been slightly over-inflated  i.e. like a barrel).

 

130 mm x 210 mm x 64 mm ISB 23126 K roulements à rouleaux sphériques

SKF 20,6
25x52x20.6 52

420 mm x 760 mm x 272 mm NSK 23284CAE4 roulements à rouleaux sphériques

NTN 43,000
48,000 K43X48X35.7

500 mm x 920 mm x 336 mm NSK 232/500CAKE4 roulements à rouleaux sphériques

1,8 41,5 mm
0,37 72 mm

710 mm x 870 mm x 118 mm FAG 238/710-MB roulements à rouleaux sphériques

160 3 300 kN
Roller Bearings 55.4

360 mm x 540 mm x 180 mm KOYO 24072R roulements à rouleaux sphériques

CX 88.9x123.825x20.638
88,9 20,638

460 mm x 830 mm x 296 mm NTN 23292B roulements à rouleaux sphériques

90x160x30 30 mm
3 100 r/min 7218BDT

380 mm x 650 mm x 200 mm ISB 23180 EKW33+AOH3180 roulements à rouleaux sphériques

BTM3820A 38 mm
44,5 kN 48

AST 22336MBW33 roulements à rouleaux sphériques

87 21,5
39 mm 87 mm
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