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Tool clamping \ Tool chucks ISO 7388-1 SK 40/50
Weldon surface chucks (ISO 7388-1)

SK SK Form G 6,3 ISO
40 50 AD/AF IK 15000 rpm 7388-1
Application: ƒ Core strength 1000-1200 N/mm 2
For clamping tools with straight shanks and clamping surfaces in line with DIN ƒ With Balluff chip hole
1835 B.
Advantage:
Execution: ƒ Prevents rotation of tool while maintaining high concentricity
ƒ All tapers and tolerances are precision-ground
ƒ Cone tolerance AT3 Notes:
Required pull studs, no. 23690
ƒ Strength HRC 57-60
A A L3
L L2 L1 L
g g g
d d1 D
d D
d D G

p. 734
Tool holding d (mm) A (mm) L (mm) L1 (mm) L2 (mm) L3 (mm) D (mm) d1 (mm) g / G 23157...
device Ident. No.
SK 40 6 50 18 - - - 25 - M6 001 ●
SK 40 6 100 18 - - 40 35 25 M6 002 ●
SK 40 6 160 18 - - 80 35 25 M6 003 ●
SK 40 8 50 18 - - - 28 - M8 004 ●
SK 40 8 100 18 - - 40 38 28 M8 005 ●
SK 40 8 160 18 - - 80 38 28 M8 006 ●
SK 40 10 50 20 - - - 35 - M10 007 ●
SK 40 10 100 20 - - 40 40 35 M10 008 ●
SK 40 10 160 20 - - 80 40 35 M10 009 ●
SK 40 12 50 22.5 - - - 42 - M12 010 ●
SK 40 12 100 22.5 - - - 42 - M12 011 ●
SK 40 12 160 22.5 - - - 42 - M12 012 ●
SK 40 14 50 22.5 - - - 44 - M12 013 ●
SK 40 14 100 22.5 - - - 44 - M12 014 ●
SK 40 14 160 22.5 - - - 44 - M12 015 ●
SK 40 16 63 24 - - - 48 - M14 016 ●
SK 40 16 100 24 - - - 48 - M14 017 ●
SK 40 16 160 24 - - - 48 - M14 018 ●
SK 40 18 63 24 - - - 50 - M14 019 ●
SK 40 18 100 24 - - - 50 - M14 020 ●
SK 40 18 160 24 - - - 50 - M14 021 ●
SK 40 20 63 25 - - - 52 - M16 022 ●
SK 40 20 100 25 - - - 52 - M16 023 ●
SK 40 20 160 25 - - - 52 - M16 024 ●
SK 40 25 100 - 24 25 - 65 - M18 x 2 025 ●
SK 40 25 160 - 24 25 - 65 - M18 x 2 026 ●
SK 40 32 100 - 24 28 - 72 - M20 x 2 027 ●
SK 40 32 160 - 24 28 - 72 - M20 x 2 028 ●
SK 40 40 115 - 30 32 - 80 - M20 x 2 029 ●
SK 40 40 160 - 30 32 - 80 - M20 x 2 030 ●
SK 50 6 63 18 - - - 25 - M6 050 ●
SK 50 6 100 18 - - 40 35 25 M6 051 ●
SK 50 6 160 18 - - 80 35 25 M6 052 ●
SK 50 8 63 18 - - - 28 - M8 053 ●
SK 50 8 100 18 - - 80 38 28 M8 054 ●
SK 50 8 160 18 - - - 38 28 M8 055 ●
SK 50 10 63 20 - - - 35 - M10 056 ●
SK 50 10 100 20 - - 40 42 35 M10 057 ●
SK 50 10 160 20 - - 80 42 35 M10 058 ●
SK 50 12 63 22.5 - - - 42 - M12 059 ●
SK 50 12 100 22.5 - - 40 48 42 M12 060 ●
SK 50 12 160 22.5 - - 80 48 42 M12 061 ●
SK 50 14 63 22.5 - - - 44 - M12 062 ●
SK 50 14 100 22.5 - - 40 50 44 M12 063 ●
SK 50 14 160 22.5 - - 80 50 44 M12 064 ●
SK 50 16 63 24 - - - 48 - M14 065 ●
SK 50 16 100 24 - - 40 54 48 M14 066 ●
SK 50 16 160 24 - - 80 54 48 M14 067 ●
SK 50 18 63 24 - - - 50 - M14 068 ●
SK 50 18 100 24 - - 40 56 50 M14 069 ●
SK 50 18 160 24 - - 80 56 50 M14 070 ●
SK 50 20 63 25 - - - 52 - M16 071 ●
SK 50 20 100 25 - - 40 59 52 M16 072 ●
SK 50 20 160 25 - - 80 59 52 M16 073 ●
SK 50 25 80 - 24 25 - 65 - M18 x 2 074 ●
SK 50 25 100 - 24 25 - 65 - M18 x 2 075 ●
SK 50 32 100 - 24 28 - 72 - M20 x 2 077 ●
SK 50 32 160 - 24 28 - 72 - M20 x 2 078 ●
SK 50 25 160 - 24 25 - 65 - M18 x 2 076 ●
SK 50 40 120 - 30 32 - 80 - M20 x 2 079 ●
SK 50 40 160 - 30 32 - 80 - M20 x 2 080 ●
Source: Hahn+Kolb Werkzeuge GmbH
Technical data subject to change. www.iconridge.com 709
Availability subject to country specific rules and regulations.