{{ name }}
Article no. {{ combinedCodeWithHighlight }}
Article code:
EAN / GTIN:
Manufacturer number:
Cat. Nr.:
Heavy-duty chuck, BT 50, ⌀ D1: 20mm
Article no.: 302870 20
Article code:
- Arbor standard: JIS B6339; ISO 7388-2
- Shape: AD
- Balance quality G at rotational speed: G 6.3 at 15,000 rpm
- Concentricity: ≤ 5
- Machining strategy: HPC
Product details
Technical Data
| Clamping ⌀ D1 | 20 mm | |
| Adapter | BT 50 | |
| Arbor standard | JIS B6339; ISO 7388-2 | |
| Shape | AD | |
| 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 & Classification
| Article number | 302870 20 | |
| EAN / GTIN | 4045197554611 | |
| Manufacturer number | 302870 20 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
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 to 1000 Nm.
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.
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.
Application:
For clamping tools with plain shanks.
Supplied with:
Clamping nut