Shrink-fit chuck Form AD 20 mm

Article no.: 303830 20
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54 pieces in stock
  • Arbor standard: JIS B6339; JIS B6339
  • Shape: AD
  • Balance quality G at rotational speed: G 2.5 at 25,000 rpm
  • Concentricity: ≤ 3
  • Machining strategy: HSC; HPC

Product details

Technical Data

Clamping ⌀ D1 20 mm
Adapter BT 30 short
Arbor standard JIS B6339; JIS B6339
Shape AD
Balance quality G at rotational speed G 2.5 at 25,000 rpm
Concentricity ≤ 3 µm
Machining strategy HSC; HPC
Version BT-DC
Overhang dimension A 90 mm
a 1 mm
External ⌀ D 42 mm
⌀ D2 33 mm
Type of product Shrink-fit chuck

Identification numbers & Classifications

Article number 303830 20
EAN / GTIN 4062406250652

Description

Version:

  • High-temperature steel.
  • Integral tool length adjustment, adjustment track 10 mm.
  • Suitable for shrink fitting of HSS and carbide tools.
  • All shanks hard turned (for smooth running!).
  • With RFID/Balluffchip bore.

Advantage:

The double contact between the taper and the flat flange creates a more stable and precise clamping situation:
  • Better surface quality
  • Longer tool life times
  • Consistent seating in the headstock (even at high speeds)
  • Smaller radial run-out
A BT double contact arbor can also be used in a standard BT machine spindle – and vice versa. The advantages of the double contact are however achieved only when a double contact arbor and double contact spindle are used together.

Application:

For clamping tools with parallel shank to h6 tolerance.

Standard:

Similar to E-DIN 69882-8, form G.

Optional extras:

Pull studs (PS), No. 308760 − 308806,
Shrink-fit chuck extension No. 302410302417,
Shrink-fit units No. 354210354400.

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