Article no.: 303830
Brand: GARANT
Machining strategy HPC
Machining strategy HSC
Balance quality G at rotational speed G 2.5 at 25,000 rpm
Arbor standard JIS B6339
Shape AD
Arbor standard JIS B6339
Concentricity ≤ 3
Version BT-DC

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on request
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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 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. 302410 − 302417,
Shrink-fit units No. 354210 − 354400.

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