zhongheng bearing co.,ltd
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NUP311E cylindrical roller bearings 55x120x29mm

NUP311E Cylindrical Roller Bearings 55x120x29mm

Min. Order:
1 Piece
Payment term:
TT/Paypal/LC
Delivery time:
1--30days
Technical Parameters:
Product Designations:
NUP311E
Structure:
Cylindrical roller bearing
Inside Diameter:
55 mm
Outside Diameter:
120 mm
Thickness:
29 mm
Weight:
1.53 KG
Brand:
GBZHB or OEM
Precision Rating:
P0,P6,P5,P4,P2
Bearing Material:
Bearing steel / Chrome steel GCr15
Seals Type:
ZZ,2RS,Open
NUP311E Cylindrical Roller Bearings 55x120x29mm

NUP311E    cylindrical roller bearings

 Inner Diameter (ID):55    mm
Outer diameter (OD):120   mm
Width/Height:29  mm
     

Weight:1.53  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)

NUP311E   Cage structure:
TYN:polyamide resin cage
TR : Phenolic resin cage

BRASS:Brass cage

NUP311E   Type cylindrical roller bearings
1.N bearing

2.NU type bearings

3.NJ type bearings

4.NUP bearings

5.NN bearings

 

NUP311E    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

NUP311E      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.

Bearing No.

Principal dimensions

Basic load ratings

Fatigue  load           limit

Speed ratings

Mass

 

 

dynamic

static

 

Reference speed

Limiting speed

 

 

d

D

B

C

C0

Pu

 

 

 

 

mm

kN

kN

r/min

kg

                   

 

NN 3005

25

47

16

26

30

3,1

19000

22000

0,12

NN 3006

30

55

19

30,8

37,5

3,9

16000

18000

0,19

NN 3007

35

62

20

39,1

50

5,4

14000

16000

0,25

NN 3008

40

68

21

42,9

56

6,48

12000

14000


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