ER-Collet chuck SK 40 - 3/26 - 80 | ER 40Application: For mounting straight shank tools in collets. Delivery: With balanced clamping nut 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 strength in the core of min. 800 N mm after DIN All functional surfaces fine machined

E1= 28 pieces

Instructions for use

In machining centres (machines with automatic tool changers)

- Preset real position value

with IC DIN 6499 B (ISO 15488 B)ER-system

rack and handles

without cooling lubricant supply

SK 30 without coolant exit bores on the end face

For the chucking of quick change adaptors for taps

For clamping nuts ER-system

Excellent concentricity in the system (chuck + collet + clamping nut)

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance