High speed main spindle ball bearings 7092AC 460*680*100mm

The four point contact ball bearing 7092ac/b/c 460X680X100mm belongs to single row ball bearing.The bearing types commonly used in high speed grinding spindle are B70C and B70CA series, and B72C and B72CA series can also be used in heavy load. they can sustain significant axial loads in one direction together with radial loads. Because of their design, when a radial load is applied, an axial force component is produced; therefore, two opposed bearings or a combination of more than two must be used.
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The precision ball bearing 7092AC specification as following:
The bearing full name:single row four point contact ball bearing
The bearing full items:7092AC
The bearing old type:7092c 7092b
The bearing full inch size:18.11x26.77x3.94inch size
The bearing outer diameter inch size:26.77
The bearing inner diameter inch size:18.11
The bearing height:3.94 inch size
The beariThe bearing rolling element:Ball
The ball bearing material:Steel ball, ceramic ball
The bearing ring material:super chorme steel
The bearing package:strong carton
The bearing boundary size: 460X680X100mm
The bearing outerside diameter:680mm
The bearing inside diameter:460mm
The bearing width:100mm
The bearing clearance:C1 C2 C3 Group
The bearing load :
The dynamic load:507KN
The static load:900KN
The bearing grease working speed:690 rpm
The bearing oil working speed:1450rpm
The bearing accuracy grade:P5 P4 P2 grade  

 Back to back bearing arrangement
Face to face bearing arrangement
Tandem bearing arrangement
DB:Back-to-back arrangement Designation suffix DB
DF:Designation suffix DB Designation suffix DF (FF)
DT:Tandem arrangement Designation suffix DT (T)
TBT:Back-to-back and tandem arrangement Designation suffix TBT (TD)
TFT:Face-to-face and tandem arrangement Designation suffix TFT (TF)
TT:Tandem arrangement Designation suffix TT (3T)
QBC:Tandem back-to-back arrangement Designation suffix QBC (TDT)
QFC:Tandem face-to-face arrangement Designation suffix QFC (TFT)
QBT:Back-to-back and tandem arrangement Designation suffix QBT (3TD)
QFT:Face-to-face and tandem arrangement Designation suffix QFT (3TF)
QT:Tandem arrangement Designation suffix QT (4T)