ATORN surface chuck (Weldon) SK40 (ISO 7388-1) dia. 20 mm A=130 mm coolant bore
Brand: ATORN
DIN: 69871-1
Art.-no. 23157923
Manufacturer article no. 22660324
EAN 4050293707397
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Application
For clamping tools with straight shank and clamping surface in accordance with DIN 1835 B.
Execution
- Alloyed case-hardening steel with core tensile strength of at least 950 N/mm²
- Case-hardened HRc 60 ± 2 (HV 700 ± 50), hardness depth 0.8 mm ± 0.2 mm
- Taper angle tolerance quality < AT3 in accordance with DIN 7187 and DIN 2080
- Tool holder concentricity, internal taper to clamping diameter ≤ 0.005 mm
- All functional surfaces are machined
Notes
The previous standard DIN 69871-1 was superseded by ISO 7388-1.
Delivery
1x SK40 or SK50 surface chuck (Weldon) (ISO 7388-1) with coolant bores
 | |
Brand | ATORN |
Tool holding device | SK 40 |
Clamping diameter (d) | 20 mm |
Projecting length (A) | 130 mm |
Outer diameter (D) | 52 mm |
Clearance length to collar (L) | 111 mm |
Balancing quality | G 2.5 at 25,000 rpm |
Form | AD/AF |
DIN | 69871-1 |
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