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Manufacturer number:
Cat. No.:
ER collet chuck Form AD, BT 30 A = 70, for ER collet size: 25
Article no.: 523771
Catalog no.: 302750
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 | |
| Holder shape | MAS BT | |
| Holder version | dimensionless nominal size without cooling | |
| Holder size, no dimensions | 30 | |
| Type of mounting | spigot | |
| Interface on machine side | BT 30 | |
| With flat surface contact | yes | |
| Distance a | 0 mm | |
| Min. clamping diameter D1 | 1 mm | |
| Max. clamping diameter D1 | 16 mm | |
| For collet type | ER collet | |
| Collet size | 25 | |
| Gauge length A | 70 mm | |
| External diameter, tool-end D | 42 mm | |
| External diameter of clamping nut D | 42 mm | |
| Height of clamping nut | 19.75 mm | |
| Min. tool clamping length L3 min | 1 mm | |
| Max. tool clamping length L3 | 16 mm | |
| Max. speed | 25’000 min-1 | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 6.3 at 20,000 rpm | |
| Machining strategy | HSC | |
| Vibration damping | no | |
| Tool pull-out protection | no | |
| Pendular compensation | no | |
| Thread G; M | M12 | |
| Interface | joint 1; joint 2 | |
| Type of product | collet chucks | |
| Overall length L | 118.4 mm | |
| Overall height H1 | 42 mm | |
| Overall width B1 | 42 mm | |
| Standard | ISO 7388-2; JIS B6339 | |
| Shape | AD | |
| With thread | yes | |
| Through-coolant available | no | |
| Surface treatment | burnished | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 523771 | |
| Catalog number | 302750 | |
| EAN / GTIN | 4250122698005 | |
| Manufacturer number | H.305.02.16.70 | |
| Manufacturer/responsible person | Nusret Eroglu Präzisionswerkzeuge GmbH, Heerweg 9, 72116 Mössingen, Germany, www.eroglumakina.com |
Description
Version:
External and internal taper ground.
All shanks burnished.
All shanks burnished.
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.