Page 231 - Techniks Catalog 2017

BT Retention Knobs

Techniks Retention Knobs
• All mating surfaces precision ground
• Manufactured to the highest standards for
maximum safety and long life
• Hardened for maximum longevity

Please make sure that the Retention
Knob you order is the correct one D d3
for your machine. Using the wrong d2
Retention Knob can cause damage to
your machine spindle, the toolhold- d1 T
er, and may create a safety hazard.
l2
l1
L
BT Retention Knobs

Dimensions in millimeters.

Part No. Description θ D d1 d2 d3 L I1 l2 T
17801 BT30 - 45° 45˚ 16.5 11 7 12.5 43 23 18 M12
17803 BT40 - 45° 45˚ 23 15 10 17 60 35 28 M16
17834 BT40, ANSI, metric thread 45˚ 23 18.8 12.5 12.4 38 16 11 M16
17805 BT50 - 45° 45˚ 38 23 17 25 85 45 35 M24
17806 BT30 - 60° 60˚ 16.5 11 7 12.5 43 23 18 M12
17808 BT40 - 60° 60˚ 23 15 10 17 60 35 28 M16
17810 BT50 - 60° 60˚ 38 23 17 25 85 45 35 M24
17812 BT30 - 90° 90˚ 16.5 11 7 12.5 43 23 8 M12
17814 BT40 - 90° 90˚ 23 15 10 17 60 35 28 M16
17816 BT50 - 90° 90˚ 38 23 17 25 85 45 35 M24

D
d2 d3
d4
T
d1
BT Coolant Style Retention Knobs l2
l1 L
Dimensions in millimeters.
Part No. Description θ D d1 d2 d3 d4 L I1 I2 T
17817 BT30 - 45˚ coolant 45˚ 16.5 11 7 12.5 4 43 23 18 M12
17818 BT40 - 45˚ coolant 45˚ 23 15 10 17 4 60 35 28 M16
17820 BT40 - 60˚ coolant 60˚ 23 15 10 17 4 60 35 28 M16
17822 BT40 - 90˚ coolant 90˚ 23 15 10 17 4 60 35 28 M16
17824 BT50 - 45˚ coolant 45˚ 38 23 17 25 5 85 45 35 M24
17826 BT50 - 60˚ coolant 60˚ 38 23 17 25 5 85 45 35 M24
17828 BT50 - 90˚ coolant 90˚ 38 23 17 25 5 85 45 35 M24

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