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Heavy-duty chuck, BT 40, ⌀ D1: 20mm
Article no.: 302861 20
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| Entry of cooling lubricant | with cooling lubricant entry, decentrally via collar and axially concentric | |
| Escape of cooling lubricant | with cooling lubricant exit, axially concentric | |
| Interface position | on the machine; on the workpiece | |
| Holder type | ISO taper; collet taper | |
| Interface coding | SKG05005195; SZD02000285 | |
| Holder shape | MAS BT | |
| Holder version | dimensionless nominal size with cooling; metric with cooling lubricant holes | |
| Holder size, metric | 20 mm | |
| Type of mounting | spigot; hole (internal mounting) | |
| Cooling lubricant | yes | |
| Interface on machine side | BT 40 | |
| Max. clamping diameter D1 | 20 mm | |
| Gauge length A | 90 mm | |
| External diameter of clamping nut D | 52 mm | |
| Concentricity | 5 µm | |
| Balance quality G at rotational speed | g 6.3 at 20,000 rpm | |
| Machining strategy | HPC | |
| Vibration damping | yes | |
| Tool pull-out protection | yes | |
| Max. clamping force | 1,000 Nm | |
| Interface | joint 1; joint 2 | |
| Type of product | heavy-duty chucks | |
| Overall length L | 155.4 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| Through-coolant available | yes | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 302861 20 | |
| EAN / GTIN | 2050001771773 | |
| Manufacturer number | 314040320090 | |
| Manufacturer/responsible person | NT TOOL EUROPE GmbH, Siemensstraße 17A, 61449 Steinbach Taunus, Germany, www.nttooleurope.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 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.
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