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NSK 6001du Bearing

 

Spherical Roller Bearings

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.

Toyana 20236 C spherical roller bearings
Toyana 20236 C spherical roller bearings
N/A
IKO
360 mm x 540 mm x 134 mm  ISB 23072 K spherical roller bearings
360 mm x 540 mm x 134 mm ISB 23072 K spherical roller bearings
sealed
130,175
140 mm x 225 mm x 68 mm  NTN 23128BK spherical roller bearings
140 mm x 225 mm x 68 mm NTN 23128BK spherical roller bearings
straight
0.095
AST 23228CW33 spherical roller bearings
AST 23228CW33 spherical roller bearings
straight
0.095
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