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Four-jaw lathe chuck with recessed cast-iron mount 250 mm
Article no.: 312000 250
Article code:
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Recessed mount to DIN 702-4 (fastening screw from rear).
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Product details
Technical Data
| Standard | DIN 702-4 | |
| Material | Cast iron | |
| External ⌀ A | 250 mm | |
| Aperture E | 76 mm | |
| Height without jaws H1 | 82 mm | |
| Height with jaws H2 | 122 mm | |
| Centring ⌀ B | 200 mm | |
| Centring depth C | 5 mm | |
| Chuck key square K | 12 mm | |
| Weight | 25.7 kg | |
| maximum speed | 2,500 min-1 | |
| Colour code for accessories | Röhm geared scroll chucks and jaws | |
| Type of product | Gear scroll chucks |
Identification numbers & Classifications
| Article number | 312000 250 | |
| Manufacturer number | 100834 |
Description
Version:
- Gear scroll drop-forged, balanced, and hardened.
- Flanks of scroll and of jaw serrations are ground.
- High concentricity.
Application:
For machine spindles with recessed centring mount or for mounting using a flange. The flange blanks No. 317000 must always be adapted first to the machine and then to the lathe chuck.
Standard:
DIN 702-4.
Material:
Cast iron
Supplied with:
1 set = 4 hardened inside jaws, stepped on the outside.
1 set = 4 hardened outside jaws, stepped on the inside.
1 clamping wrench and fastening screws or studs depending on the chuck.
1 set = 4 hardened outside jaws, stepped on the inside.
1 clamping wrench and fastening screws or studs depending on the chuck.
Optional extras:
Note:
DIN 702-4 satisfies the old standard DIN 6350-1.