Hydraulic expansion chuck BT 40 - 12 - 90

Hydraulic expansion chuck BT 40 - 12 - 90Application: 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: With 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

Clamping range h6 (nominal size only)

Upon switching on the display will read the actual absolute measuring position

Measures external groves and recessed hub dimensions

Only nominal size d can be clamped

Shortened processing times and reduction of production and unit costs

- Determining the reference points (calibration) of optical presetting devices

For use on vises

Clamping capacity up to –0

System concentricity and repetition accuracy 3 µm (3×D

5 with h4-tolerance and Ø 6 – Ø 32 with h6-tolerance6

- Maximum concentricity <0

prevents chip clogging