DingXin Machine Co, limited

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Axial angular contact ball bearings ZKLDF325

Axial angular contact ball bearings ZKLDF325
Product name : Axial angular contact ball bearings ZKLDF325
Item : ZKLDF325
Details :
double direction, for screw mounting, sealing shields on both sides
 
 
d   325  mm 
  Sizes d > 460 mm available by agreement
D   450  mm 
   
H   60  mm 
   
 
    34   
  Number of fixing holes in inner ring
Attention!
For fixing holes in the adjacent construction.
Note the pitch of the bearing holes.
    2   
  Number of retaining screws
    33   
  Number of fixing holes in outer ring
Attention!
For fixing holes in the adjacent construction.
Note the pitch of the bearing holes.
    3   
  Number of extraction threads
1)  
  Retaining screws
2)  
  Screw counterbores in the L-section ring open to the bearing bore, see Figure 2.)
Bearing inside diameter unsupported in area x.
3)  
  Contact surface / centring diameter
a   8,2  mm 
  Fixing holes in inner ring
D1   415  mm 
   
D2   380  mm 
   
D3   413  mm 
   
d1   9,3  mm 
  Fixing holes in inner ring
d2   15  mm 
  Fixing holes in inner ring
d3   9,3  mm 
  Fixing holes in outer ring
G   M12   
  Extraction thread
H1   40  mm 
   
J   342  mm 
  Fixing holes in inner ring
J1   430  mm 
  Fixing holes in outer ring
t   36 X 10°   
  Quantity of pitches X angle of pitches
Including retaining screws and extraction threads
 
m   28  kg 
  Mass
MA   34  Nm 
  Screw tightening torque

Tightening torque for screws to DIN 912, grade 10.9.
Ca   172000  
  Basic dynamic load rating, axial
C0a   1110000  
  Basic static load rating, axial
nG   1000  1/min 
  Limiting speed, valid for matched adjacent construction
MRL   11  Nm 
  Bearing frictional torque
caL   4000  N/µm 
  Axial rigidity of bearing position
Rigidity values taking account of the rolling element set, rigidity of the bearing rings and the screw connections.
crL   800  N/µm 
  Radial rigidity of bearing position
Rigidity values taking account of the rolling element set, rigidity of the bearing rings and the screw connections.
ckL   60000  Nm/mrad 
  Tilting rigidity of the bearing position
Rigidity values taking account of the rolling element set, rigidity of the bearing rings and the screw connections.
caL   5400  N/µm 
  Axial rigidity of rolling element set
crL   800  N/µm 
  Radial rigidity of rolling element set
ckL   90000  Nm/mrad 
  Tilting rigidity of rolling element set
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