Milling spindle for high loads ball bearing 7056ACDBP5 280*420*65mm

Angular contact ball bearings 7056AC,7056C,7056B have higher limit speed, can bear both radial and axial loads, and can also bear pure axial loads. The axial load capacity of angular contact ball bearings depends on the contact angle.

 The precision ball bearing 7056AC specification as following:
The bearing full name:single row four point contact ball bearing
The bearing full items:7056AC
The bearing old type:7056c 7056b
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
full inch size:11.02x16.54x2.56 inch size
The bearing outer diameter inch size:16.54
The bearing inner diameter inch size:11.02
The bearing height:2.56 inch size
The bearing boundary size:280x420x65mm
The bearing outerside diameter:420mm
The bearing inside diameter:280mm
The bearing width:65mm
The bearing clearance:C1 C2 C3 Group

Angular contact ball bearings used in precision machine tools can be divided into two categories, one for the spindle of machine tools, and the other for
high-speed grinding of spindles and motorized spindles of grinders. Their structures and properties vary according to their uses. Angular contact ball
bearings for machine tool spindles require high rotation accuracy, sufficient stiffness, load-bearing capacity and small occupancy of space. 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.

 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)