Tianjin Haman Technology Co., Ltd
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Tapered roller bearings 30248

Tapered Roller Bearings 30248

Min. Order:
1 Piece
Payment term:
TT
Delivery time:
Stock
Technical Parameters:
Product Designations:
30248
Structure:
tapered roller bearing
Inside Diameter:
240 mm
Outside Diameter:
440 mm
Thickness:
79 mm
Weight:
45.9 KG
Precision Rating:
ABEC-5
Bearing Material:
Chrome Steel
Seals Type:
Open
Tapered Roller Bearings 30248

    

Item:Tapered Roller Bearing 30248

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 30248

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

 

d 240  mm 
   
D 440  mm 
   
T 79  mm 
   
 
a 75,5  mm 
   
B 72  mm 
   
C 60  mm 
   
Ca min 10  mm 
   
Cb min 19  mm 
   
Da min 383  mm 
   
Db min 410  mm 
   
d1 325  mm 
   
da max 285  mm 
   
db min 257  mm 
   
r1, 2 min 5  mm 
   
r3, 4 min 4  mm 
   
ra max 5  mm 
   
rb max 4  mm 
   
 
m 45,9  kg 
  Mass
Cr 870000  N 
  Basic dynamic load rating, radial
C0r 1260000  N 
  Basic static load rating, radial
e 0,36 
   
Y 1,68 
   
Y0 0,92 
   
Cur 126000  N 
  Fatigue limit load, radial
nG 1640  1/min 
  Limiting speed
nB 1120  1/min 
  Reference speed

 

 

 

 


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