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			NSK Spherical Roller Bearing Nomenclature System
Source: MobearingAuthor: adminTime: 2019-07-30 14:54:20
NSK brand bearing has different item number from other bearing brand. Here we will show you NSK sphercial roller bearing nimenclature system
	
		
		
		
		
		
	
	
		
			| Series | Size | Bore Diameter | Internal Design | Cage Type | Ring Modification | Clearance | 
		
			| 22 | 2 | 24 | E | A | K | W33 | C3 | 
	
 
1  Series & Size 
22200: Spherical roller 
22300: Spherical roller 
23000: Spherical roller 
23100: Spherical roller 
23200: Spherical roller, wide 
23900: Spherical roller 
24000: Spherical roller, wide 
24100: Spherical roller, wide 
 
2 Internal Design 
E: High-capacity spherical roller bearing 
EF800: Shaker screen specification, 
special tolerance and C4 clearance 
 
3 Cage
A:  Pressed-steel cage 
M:  Machined-brass cage 
 
4 Ring Modification 
Blank: Cylindrical Bore 
K: 1:12 Tapered Bore 
K30: 1:30 Tapered Bore 
W33: Oil groove and holes 
Outer ring 
 
5 Clearance 
C1: Radial clearance less than C2 
C2: Radial clearance less than normal 
Normal radial clearance 
C3: Radial clearance greater than normal 
C4: Radial clearance greater than C3 
C5: Radial clearance greater than c4