Spherical Roller Bearings

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Internal operating clearance of a spherical roller bearing — the space between the rollers and the outer ring, — can also be critical to the application. Internal operating clearance is also encoded in the nomenclature. For example, a suffix could be shown as C2, C0, or C3, with C0 representing normal tolerance; C2, less clearance than normal; and C3, more. Be sure to check nomenclature designations on a given bearing with a catalog from the maker of that bearing to assure meanings of all suffixes in the nomenclature. There are some variations among manufacturers.
As an example of the usefulness of operating clearance suffixes in bearing nomenclature, high-temperature or highspeed applications provide better service if additional clearance (C3) is provided. Lower clearance (C2) may increase service life in a heavily loaded, low-speed application, because more roller surface is in contact with raceways.

460 mm x 760 mm x 240 mm SKF 23192 CA/W33 spherical roller bearings

Open Type 1.10 KGS
60mm 28mm

800 mm x 1060 mm x 195 mm KOYO 239/800RHA spherical roller bearings

75mm 45mm
0.02 KGS 22.1

120 mm x 215 mm x 76 mm FAG 23224-E1-TVPB spherical roller bearings

3500 22218emw33-timken
Brass Open Type

AST 22216MBKW33 spherical roller bearings

Open Type 0.02 KGS
C5 22215e/c5-qbl

Toyana 239/630 CW33 spherical roller bearings

8.4 Open Type
62mm 18mm

Toyana 24052 CW33 spherical roller bearings

5,100 rpm Double Row
0.28 3.55

150 mm x 225 mm x 56 mm NSK TL23030CDKE4 spherical roller bearings

850 min-1 300 mm
5160 kN 670 min-1

1060 mm x 1400 mm x 250 mm SKF 239/1060 CAKF/W33 spherical roller bearings

Standard 56.50 KGS
23240ejw33-timken Steel

AST 22316CKW33 spherical roller bearings

22226ew-skf 88
130mm 2600

AST 22344MBKW33 spherical roller bearings

Plastic 0.865
C3 62mm