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Side lock arbor Form AD, BT 40 A = 100, Clamping ⌀ D1: 20mm
Article no.: 303650 20
Article code:
Product details
Technical Data
| 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 | 40 | |
| Type of mounting | hole (internal mounting) | |
| Shank length LS | 73 mm | |
| Interface on machine side | BT 40 | |
| With flat surface contact | yes | |
| Distance a | 1 mm | |
| Min. clamping diameter D1 | 20 mm | |
| Max. clamping diameter D1 | 20 mm | |
| Gauge length A | 100 mm | |
| Body length on machine side | 63 mm | |
| External diameter, tool-end D | 52 mm | |
| Min. tool clamping length L3 min | 40 mm | |
| Max. tool clamping length L3 | 55 mm | |
| Max. speed | 25,000 min-1 | |
| Concentricity | 3 µm | |
| Balance quality G at rotational speed | g 2.5 at 25,000 rpm | |
| Machining strategy | HPC | |
| Vibration damping | no | |
| Pendular compensation | no | |
| Thread G; M | M16 | |
| With cooling channel bore | yes | |
| Interface | joint 1; joint 2 | |
| Type of product | side lock arbor | |
| Overall length L | 165.4 mm | |
| Overall height H1 | 165.4 mm | |
| Overall width B1 | 165.4 mm | |
| Standard | DIN 6359 | |
| Shape | AD | |
| With width across flats | no | |
| With thread | yes | |
| With hole for RFID data carrier | no | |
| Through-coolant available | yes | |
| Material | heat-treatable steel | |
| Surface treatment | ground | |
| Content | 1 pcs. |
Identification & Classification
| Article number | 303650 20 | |
| EAN / GTIN | 4067263002529 | |
| Manufacturer number | 303650 20 | |
| Manufacturer/responsible person | Hoffmann Supply Chain GmbH & Co. KG, Poststraße 15, 90471 Nürnberg, Germany, www.hoffmann-group.com |
Description
Version:
All shanks hard turned (for smooth running!).
Advantage:
The double contact between the taper and the flat flange creates a more stable and precise clamping situation:
- Better surface quality
- Longer tool life times
- Consistent seating in the headstock (even at high speeds)
- Smaller radial run-out
Application:
For clamping tools with side flat to DIN 1835 B and DIN 6535 HB.