Thermal Expansion Chuck With Taper Shank per CAT Long (Inch)
CAT Taper Shanks A255 / A256
CAT Thermogrip thermal expansion chuck for holding cylindrical shanks.  Shank tolerance h6 and surface quality Ra < 0.3. 

Delivery:
Thermal Expansion Chuck Fitted Complete.  

 
Replacement Parts
Adjusting Screw
Description Order Number CAT D1 D2 D3 L L1 Description Order Number
CAT 40 T 6-160 A25 56240 40 6 20 27 160 36 M5/SW2.5 5139110518
CAT 40 T 8-160 A25 56250 40 8 20 27 160 36 M6/SW3 5139110620
CAT 40 T 10-160 A25 56260 40 10 24 32 160 42 M8/SW4 5139110820
CAT 40 T 12-160 A25 56270 40 12 24 32 160 47 M8/SW4 5139110820
CAT 40 T 14-160 A25 56280 40 14 27 34 160 47 M8/SW4 5139110820
CAT 40 T 16-160 A25 56290 40 16 27 34 160 50 M12/SW6 5139111220
CAT 40 T 18-160 A25 56300 40 18 33 42 160 50 M12/SW6 5139111220
CAT 40 T 20-160 A25 56310 40 20 33 42 160 52 M16/SW8 5139111620
CAT 40 T 25-160 A25 56320 40 25 44 53 160 58 M16/SW8 5139111620
CAT 50 T 6-160 A25 66240 50 6 20 27 160 36 M5/SW2.5 5139110518
CAT 50 T 8-160 A25 66250 50 8 20 27 160 36 M6/SW3 5139110620
CAT 50 T 10-160 A25 66260 50 10 24 32 160 42 M8/SW4 5139110820
CAT 50 T 12-160 A25 66270 50 12 24 32 160 47 M8/SW4 5139110820
CAT 50 T 14-160 A25 66280 50 14 27 34 160 47 M8/SW4 5139110820
CAT 50 T 16-160 A25 66290 50 16 27 34 160 50 M12/SW6 5139111220
CAT 50 T 18-160 A25 66300 50 18 33 42 160 50 M12/SW6 5139111220
CAT 50 T 20-160 A25 66310 50 20 33 42 160 52 M16/SW8 5139111620
CAT 50 T 25-160 A25 66320 50 25 44 53 160 58 M16/SW8 5139111620
CAT 50 T 32-160 A25 66330 50 32 44 53 160 58 M16/SW8 5139111620