Lathe spindle use higher speed ball bearing 7068ACP5
Angular contact ball bearings 7068AC,7068C,7068B have higher limit speed, can bear both radial and axial loads, and can also bear pure axial loads. Commonly
used are 70C, 70AC, 70B, 718B, 718AC, 719AC, 719B, 72B, 72AC, 73B and 73AC series. 70 series can bear lighter load, 72 series can bear heavier load. C means the contact angle is 15 degrees, AC is 25 degrees, and B is 40 degrees.
The bearing boundary size:340x520x82mm
The bearing outerside diameter:520mm
The bearing inside diameter:340mm
The bearing width:82mm
The bearing clearance:C1 C2 C3 Group
The bearing load :
The dynamic load:507KN
The static load:900KN
The bearing grease working speed:850 rpm
The bearing oil working speed:1200rpm
The bearing accuracy grade:P5 P4 P2 grade
Single row angular contact ball bearings can only bear the axial load in one direction. When bearing the radial load, it will cause additional axial force, and can only limit the axial displacement of the shaft or shell in one direction. The contact angle of angular contact ball bearing is 40 degrees, so it can bear a large axial load. Angular contact ball bearing is a non-separable design, and the shoulders on both sides of the inner and outer rings vary
in height.
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)
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Lathe Spindle Use Higher Speed Ball Bearing 7068ACP5 Images
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