Tianjin Haman Technology Co., Ltd
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Tapered roller bearings 31307-A

Tapered Roller Bearings 31307-A

Min. Order:
1 Piece
Payment term:
TT
Delivery time:
Stock
Technical Parameters:
Product Designations:
31307-A
Structure:
tapered roller bearing
Inside Diameter:
35 mm
Outside Diameter:
80 mm
Thickness:
22.75 mm
Weight:
0.582 KG
Precision Rating:
ABEC-5
Bearing Material:
Chrome Steel
Seals Type:
Open
Tapered Roller Bearings 31307-A

       

Item:Tapered Roller Bearing 31307-A

1)ISO 9001:2008 approved 
2)long life and low noise 
3)OEM service 
4)stocks

Specifications

Material :GCr15/GCr15SiMn / G20Gr2Ni4A 
Hardness :HRC60-HRC64 
Closures :Unsealed/Sealed Grade : P5

Clearance :C0, C3, C4

Lubrication :Oil or grease 
Features: These bearings are featured by the extremely big axial load carrying capacity and meanwhile they can also carry certain radial load

Packing :
1. For small ones: Anti-rust oil+ plastic bag+ paper box+ wooden box 
2. For big ones: Anti-rust oil+ waterproof belt+ professional belt +wooden box 


Application :Steel industry, oil industry, cement industry, mining & construction, papermaking machinery, rolling mill, sugar mill, vibrating screens, conveyors, air blower, transmissions, and other heavy machinery 

 

 

Tapered roller bearings 31307-A

 
main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

 

d 35  mm 
   
D 80  mm 
   
T 22,75  mm 
   
 
a 26  mm 
   
B 21  mm 
   
C 15  mm 
   
Ca min 4  mm 
   
Cb min 7,5  mm 
   
Da max 71  mm 
   
Da min 62  mm 
   
Db min 76  mm 
   
d1 59,9  mm 
   
da max 44  mm 
   
db min 44  mm 
   
r1, 2 min 2  mm 
   
r3, 4 min 1,5  mm 
   
ra max 2  mm 
   
rb max 1,5  mm 
   
 
m 0,582  kg 
  Mass
Cr 60000  N 
  Basic dynamic load rating, radial
C0r 64000  N 
  Basic static load rating, radial
e 0,83 
   
Y 0,73 
   
Y0 0,4 
   
Cur 7500  N 
  Fatigue limit load, radial
nG 9100  1/min 
  Limiting speed
nB 5800  1/min 
  Reference speed
  T7FB035 
  Comparative designation to DIN ISO 355

 

 


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