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Heavy-duty chuck 20 mm
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 numbers & Classifications
| Article number | 302870 20 | |
| EAN / GTIN | 4045197554611 | |
| Manufacturer number | 302870 20 |
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
Optional extras:
Downloads & documents
Compare with similar products
This article |
Recommendations |
|
|---|---|---|
Heavy-duty chuck 20 mm |
||
| Adapter | BT 50 | BT 40 |
| Overhang dimension A | 90 | 90 |
| Shape | AD | AD |
| Suitable C-hook (pin) spanner No. 628400 | 52 / 55 | 52 / 55 |
| Clamping ⌀ D1 | 20 | 20 |
| Balance quality G at rotational speed | G 6.3 at 15,000 rpm | G 6.3 at 15,000 rpm |
| Machining strategy | HPC | HPC |