ER collet chuck Form AD 25

Article no.: 303710 25
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In stock
10 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

Product details

Technical Data

for ER collets 25
Clamping ⌀ D1 1-16 mm
Adapter BT 40 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
Clamping range 1 mm - 16 mm
Overhang dimension A 70 mm
a 1 mm
External ⌀ D 42 mm
Spare ER clamping nut No. 309580 25
ER chuck key No. 309680 25
Version BT-DC
Balluffchip bore yes
Type of product Collet chuck

Identification numbers & Classifications

Article number 303710 25
EAN / GTIN 4062406250324

Description

Version:

Taper ground internally and externally. All shanks hard turned (for smooth running!). With RFID/Balluffchip bore.
  • High-quality precision clamping nut.
  • Clamping nut balanced for HSM (G2.5/25,000 rpm).
  • Optimum wear characteristics and torque transmission due to the coated precision clamping nut.

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 in collets to DIN 6499 Form A and B.

Supplied with:

ER clamping nut.

Optional extras:

ER collets No. 308881309434, ER chuck keys No. 309680309720 or 613300, ER clamping nut 309610.
Pull studs (PS) No. 308760 − 308806. Pull stud wrenches No. 308820; 308835.

Note:

Matching clamping nut No. 309580 or 309610.

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