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Manufacturer number:
Cat. No.:
ER collet chuck Form AD, BT 40 A = 100, for ER collet size: 40
Article no.: 302767 40
Article code:
Product details
Technical Data
| Through-coolant | no | |
| Entry of cooling lubricant | with cooling lubricant entry, axially concentric | |
| Escape of cooling lubricant | with cooling lubricant exit, axially concentric | |
| Cooling lubricant | yes | |
| Holder type | iSO taper | |
| Interface coding | SKG04005195 | |
| Holder shape | steep taper DIN ISO 7388-1 | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 40 | |
| Type of mounting | spigot | |
| Shank length | 100 mm | |
| Interface on machine side | BT 40 | |
| With flat surface contact | yes | |
| Min. clamping diameter | 3 mm | |
| Max. clamping diameter | 26 mm | |
| For collet type | ER collet | |
| Collet size | 40 | |
| Gauge length | 100 mm | |
| External diameter, tool-end | 63 mm | |
| External diameter of clamping nut | 59 mm | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 6.3 at 18,000 rpm | |
| Machining strategy | HSC | |
| Vibration damping | no | |
| Tool pull-out protection | no | |
| Pendular compensation | no | |
| Incl. length adjustment screw | no | |
| Interface | joint 1; joint 2 | |
| Type of product | collet chucks | |
| Overall length | 165.4 mm | |
| Overall height | 63 mm | |
| Overall width | 63 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| With thread | no | |
| With hole for RFID data carrier | no | |
| Through-coolant available | no | |
| Material | heat-treatable steel | |
| Surface treatment | ground | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 302767 40 | |
| EAN / GTIN | 4062406230074 | |
| Manufacturer number | 302767 40 | |
| 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 fine bead blasted. Balancing quality G6.3 / 18,000 rpm.
- High-quality 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:
Pull studs (PS) No. 308760 − 308802. Pull stud wrenches No. 308820; 308835.
ER collets No. 308881 − 309434, ER chuck keys No. 309680 – 309745 or No. 613300.
ER collets No. 308881 − 309434, ER chuck keys No. 309680 – 309745 or No. 613300.