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Manufacturer number:
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ER collet chuck Form ADB, BT 40 short, for ER collet size: 16
Article no.: 672062
Catalog no.: 302755
Article code:
Product details
Technical Data
| Through-coolant | yes | |
| Entry of cooling lubricant | with cooling lubricant entry, axial groove on shank | |
| Escape of cooling lubricant | with cooling lubricant exit, axially concentric | |
| Cooling lubricant | yes | |
| Holder type | ISO taper | |
| Holder shape | MAS BT | |
| Holder version | dimensionless nominal size with cooling | |
| Holder size, no dimensions | 40 | |
| Type of mounting | spigot | |
| Shank length LS | 135.4 mm | |
| Interface on machine side | BT 40 | |
| With flat surface contact | yes | |
| Min. clamping diameter D1 | 0.5 mm | |
| Max. clamping diameter D1 | 10 mm | |
| For collet type | ER collet | |
| Collet size | 16 | |
| Gauge length A | 70 mm | |
| External diameter of clamping nut D | 28 mm | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HSC | |
| Format | short | |
| Thread G; M | M22 | |
| With cooling channel bore | yes | |
| Interface | joint 1; joint 2 | |
| Type of product | collet chucks | |
| Overall height H1 | 28 mm | |
| Overall width B1 | 28 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | ADB | |
| With thread | yes | |
| Through-coolant available | yes | |
| Material | heat-treatable steel | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 672062 | |
| Catalog number | 302755 | |
| EAN / GTIN | 4045197944788 | |
| Manufacturer number | 302755 16 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
External and internal taper ground.
- All shanks hard turned (for smooth running!). Balancing quality G2.5/25,000 rpm.
- Clamping nut balanced for HSM (G2.5/25,000 rpm).
- Optimum wear characteristics and torque transmission due to the coated precision clamping nut.
Application:
For clamping tools with parallel shank in collets to DIN 6499 Form A and B.
Supplied with:
ER clamping nut.
Optional extras:
ER collets No. 308881 − 309434, ER chuck keys No. 309680 – 309745 or No. 613300.
Pull studs (PS) No. 308760 − 308802. Pull stud wrenches No. 308820; 308835.
Pull studs (PS) No. 308760 − 308802. Pull stud wrenches No. 308820; 308835.