This article is no longer part of the assortment. If you are looking for an alternative, please note the links or get in contact with us.

Heavy-duty chuck 20 mm

Article no.: 302862 20
  • Arbor standard: JIS B6339; ISO 7388-2
  • Shape: AD
  • Through-coolant: yes
  • Balance quality G at rotational speed: G 6.3 at 15,000 rpm
  • Concentricity: ≤ 5

Product details

Technical Data

Clamping ⌀ D1 20 mm
Adapter BT 50
Arbor standard JIS B6339; ISO 7388-2
Shape AD
Through-coolant yes
Balance quality G at rotational speed G 6.3 at 15,000 rpm
Concentricity ≤ 5 µm
Machining strategy HPC
Overhang dimension A 90 mm
Collet outer ⌀ D 52 mm
Suitable C-hook (pin) spanner No. 628400 52 / 55
Type of product Heavy-duty chuck

Identification numbers & Classifications

Article number 302862 20
Manufacturer number 314040520105

Description

Version:

  • Low friction due to needle bearings.
  • Protected with anti-corrosion coating.
  • Dust-tight and watertight.
  • Very high clamping force prolongs tool life and improves surface quality.
  • Flexible clamping range by means of collets.
  • Clamping force up 1000 Nm at ⌀ 20, 4000 Nm at ⌀ 32.

Version - image:

Internal axial recesses effectively prevent the tool slipping.
High radial stiffness due to repeatable clamping accuracy against a flat face, which prevents misalignment and ensures a high accuracy of machining, coupled with long tool life.
T-slots take up the oil and grease, so that reliable torque transmission is achieved.
Absolutely smooth running of the clamping nut.

Advantage:

  • Long tool life.
  • Vibration damping properties.
  • High stability due to strengthened clamping nut.

Application:

For clamping tools with plain shanks.

Supplied with:

Clamping nut

Optional extras:

C wrench No. 628400.
Pull studs No. 308760308795.
Collets No. 309575309576.

Downloads & documents

Suitable products

Spare parts

Services & product advisors

Create new article code

Change article code

By means of article codes you can record your internal item numbers in the eShop.

Share this product

or copy this link

Add to shopping list

    Direct purchase

    Sign in to your Account

    To shopping cart