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N309E Cylindrical Roller Bearing 45x100x25mm
N309E cylindrical roller bearings
Inner Diameter (ID):45 mm
Outer diameter (OD):100 mm
Width/Height 25 mm
Weight:0.93 KG
Number of Row: Double row
Seals type: open
Characteristics: high speed
Internal structure: N.NU.NJ.NF.NUP.NFP.NH(NJ+HJ).NN.NNU.NNF.FC.FCD
Material: No mark:Steel ball(SUJ2); SN24:Ceramic ball(Si3N4)
N309E Cage structure:
TYN:polyamide resin cage
TR : Phenolic resin cage
BRASS:Brass cage
N309E Type cylindrical roller bearings
1.N bearing
2.NU type bearings
3.NJ type bearings
4.NUP bearings
5.NN bearings
N309E Preloaded mark:
CAC: Large size bearings, roller is symmetrical
ECAC : Bearing roller and race surface by optimizing processing, helps to guide roller
CA : Roller is symmetrical, inner ring without guard.Each column roller with stamping steel cage
CC: Bearing roller and race surface by optimizing processing, help guide roller, and can reduce friction
E: Bearing load capacity is higher.E type bearing outer ring with a groove and three oil hole
Precision grade:
P2 : ISO2;
P4 : ISO4;
P5 : ISO5
P3 : Special grade(Dimensional accuracy:ISO4,Rotation accuracy:ISO2)
p4Y: Special grade
N309E Bearing clearance
C1-1 set of the clearance, clearance is less than 2 groups.
C2 - clearance conform to the standards stipulated by the two groups, group windage is less than 0.
C0 - clearance conform to the standards stipulated by the 0 group, code omitted, don\\\\\\\'t say.
C3 - clearance conform to the standards stipulated by the three groups, group clearance greater than 0.
C4 - clearance conform to the standards stipulated by the four groups, clearance is greater than three groups.
Of the C5 - clearance 5 groups, clearance is greater than the four groups.
When clearance code and tolerance grade bearing code P4, P5 or P6, saves clearance code C.
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