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Three-jaw lathe chuck steel short taper mount 250/8 mm

Article no.: 312926 250/8

Product details

Technical Data

Standard DIN 55029
Taper size 8
External ⌀ A 250 mm
Aperture E 76 mm
Height without jaws H1 89 mm
Height with jaws H2 123 mm
Weight 32 kg
maximum speed 3,500 min-1
Colour code for accessories HOLEX geared scroll chucks and jaws
Type of product Gear scroll chucks

Identification numbers & Classifications

Article number 312926 250/8

Description

Version:

  • Manual chucks with gear scroll, centrically clamping.
  • Body made of cast iron or steel.
  • Gear scroll drop-forged, balanced, and hardened.
  • Flanks of scroll and of jaw serrations are ground.
  • High concentricity, more precise than DIN 6386 requirement.

Application:

The chuck is always fitted to the spindle nose directly without an intermediate flange.
For spindle noses DIN 55029 with Camlock studs.

Standard:

DIN 55027 and DIN 55029.

Supplied with:

Includes: 1 set = 3 hardened inside jaws, stepped on the outside.
1 set = 3 hardened outside jaws, stepped on the inside.
1 clamping wrench and fastening screws or studs depending on the chuck.

Optional extras:

For spare and additional jaws see No. 312971312991.

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