Hydraulic expansion chuck SK 40 - 14 - 77Application: For mounting straight shank tools acc. DIN 1835 form A+B+E and DIN 6535 form HA+HB+HE (larger than dia. 20 mm only with reduction sleeve). Note: l1 = max. clamping depth l2 = max. length adjustment range Delivery: Without wrench All holders are made of forged steel Specific, low warpage hardened Surface hardened HRC 58~60 Hardening depth 0,8mm~0,9mm Taper angle tolerance < AT 3 according to DIN 2080 Surface roughness Ra < 0,4 m Tensile

Surface roughness Ra < 0

Toolholders suitable for induction-

Double-clamping via two mobile and one fi xed jaw

Execution:

JIS B 6339 and DIN 2080

Clamping accuracy at the centre 0

Instructions for use

because only the shaft diameters and the squares must fit

The tapered tool holder is thus optimally

Suitable for blind holes

E1= 20 pieces

- Axial sealed with two O-rings