BBT Tool Holders

BBT Tool Holders
BBT Tool Holders

 

 ISO  d  D  D1  a  b  G  L1  L2  L3  L4  L5  L6
 30  12.5  31.75  46  1  16.1  M12  48.4  21  20  24  7.0  16.3
 40  17  44.45  63  1  16.1  M16  65.4  27  26  32  9.0  22.6
 50  25  69.85  100  1.5  25.7  M24  101.8  38  36.5  47  13.0  35.4

 

Features:

 

"BBT" Tool Holder Provides More "Rigid" Clamping than the Standard "BT" Tool Holders.

Achieves Higher "Radial Rigidity".

Improves Tool Life.

Balanced to 2.5G, 25000 RPM.

Material :- Case hardened steel, tensile strength in the core min. 950 N/mm² 

Execution :-Case hardened to HRC 58 ± 2. Case Depth 0.8mm., Silver finish.

Accuracy :- 7:24 Taper Angle Class AT 3 As per DIN 2080

BBT Tool Holders

In BBT Tool Holder as mentioned Taper and both faces are in Contact, due to which spindle and holder acts as one single unit, this allows a Higher "Radial Rigidity" hence we get good surface finish and dimensional accuracy while machining, also low vibration at higher speeds which increases Tool Life. Hence BBT Tool Holder has a remarkable significant as compared to Standard Tool Holders.

Note:

 

BBT Tool Holders are only recommended to use in Calibrated BBT Spindle Machines.

 

 

 

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