1.Cylindrical roller bearings without
outer ring ribs (N***0 type)
2.Cylindrical roller bearings with single outer ring ribs
3.Cylindrical roller bearings without inner ring ribs (NU**0
type)
4.Cylindrical roller bearings with single inner ring ribs (NJ***0
type)
5.Cylindrical roller bearings with thrust collars
6.Cylindrical roller bearings with single inner ring ribs and loose
ribs (NUP***0 type)
7.Cylindrical roller bearings with double retaining snap rings
8.Cylindrical roller bearings with snap ring grooves on outer
rings
9.Cylindrical roller bearings with tapered bore
*0.Cylindrical roller bearings without inner rings (RNU***0
type)
*1.Cylindrical roller bearings without out rings
*2.Other cylindrical roller bearings
*3.Double-row cylindrical roller bearings
*4.Double-row cylindrical roller bearings without inner ring
ribs
*5.Split cylindrical roller bearings
*6.Three-row cylindrical roller bearings
*7.Four-row cylindrical roller bearings for rolling mills
*8.Four-row cylindrical roller bearings for railroad
*9.Swivel bearings for planetary cycloid reduction gears
