DIN 6388 collets for tool clamping - Nann – Shop

130
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>> DIN 6388 collets for tool clamping
Double-taper collets according to
DIN 6388 (Ortlieb system)
• for tools with cylindrical shank
• for tools with thread for draw-in bolt
• for tools with internal cooling
(NANN patent)
K°
K°
L
L
30°
30°
ø D
ø D
Clamping tolerance:
Type A collets:
for tool shanks with tolerance h 10
Type B collets:
Clamping tolerance -0.5 mm
Hardness:
Type A collets (slotted on one end) have
a head hardness of approx. HRc 60 and
are partially tempered in the area at the
end of the slots. Type B collets, because
of the clamping tolerance, are hardened
to approx. HRc 46.
1. Collets Form A:
single-slotted, h 10 clamping tolerance
Art.-no. D L taper clamping range
400 E 11,5 21 1 : 10 1 - 6
401 E 14,5 26 1 : 10 1 - 8
404 E 17,2 30 1 : 10 1 - 10
407 E 19,9 34 1 : 10 1 - 12
410 E 25,5 40 1 : 10 2 - 16
444 E 35,05 52 1 : 10 2 - 25
450 E 44 60 1 : 10 4 - 32
453 E 52,5 68 1 : 10 6 - 11
486 E 64,2 80 1 : 10 8 - 29
2. Collets Form B:
double-slotted, -0.5 clamping tolerance
Lindenstraße 8 >> D-78583 Böttingen
Phone: +49 (0) 74 29 / 392 - 0 >> Telefax: - 11 >> www.nann.de >> info@nann.de >> 08 / 2007
Sealed collets:
The collets for tools with internal cooling
(NANN patent) are designed to take a
seal. The seal is externally fitted in the
collet and internally on the shank of the
tool. Because of this design of seal, the
taper of the collet, the nut thread and the
roller-bearing mounting of the nut are all
protected from any swarf which may be
carried with them. These seals are suitable
for pressures up to approx. 70 bar
and are absolutely leak-proof.
Art.-no. D L taper clamping range
415 E 25,5 40 1 : 10 2 - 16
4541 E 30 45 1 : 10 2 - 20
462 E 35,05 52 1 : 10 2 - 25
467 E 44 60 1 : 10 6 - 32
468 E 52,5 68 1 : 10 12 - 40
486 E 64,2 80 1 : 10 30 - 50

131
K
Similar to DIN 6388
The precision design attracts an
additional charge.
L
>> Running concentricity
L
30°
ø D
ø d
3. Collets Form A: for tool holders with internal coolant supply
interchangeable with DIN 6388 collets
Form A: single-slotted, h 10 clamping tolerance
Art.-no. D L taper clamping range
410 E-D 25,5 40 1 : 10 3 - 16
444 E-D 35,05 52 1 : 10 3 - 25
4. Collets Form B: for tool holders with internal coolant supply
interchangeable with DIN 6388 collets
Form B: double-slotted, -0.5 clamping tolerance
Art.-no. D L taper clamping range
415 E-D 25,5 40 1 : 10 3 - 16
462 E-D 35,05 52 1 : 10 3 - 25
5. Sealings for DIN 6388 collets
Art.-no. collet type clamping range
D-410 E.1 410 E-D/415 E-D 3 - 5,5
D-410 E.2 410 E-D/415 E-D 6 - 16
D-444 E.1 444 E-D/462 E-D 3 - 5,5
D-444 E.2 444 E-D/462 E-D 6 - 20
D-444 E.3 444 E-D/462 E-D 25
6. Collets for end mills with drawbolt thread
Art.-no. D L taper bores
421 E 25,5 40 1 : 10 6-8-10-12-16
4540 E 30 45 1 : 10 6-8-10-12-16-20
459 E 35,05 52 1 : 10 6-8-10-12-16-20-25
460 E 44 60 1 : 10 6-8-10-12-16-20-25-32
461 E 52,5 68 1 : 10 6-8-10-12-16-20-25-32
492 E 64,2 80 1 : 10 20-25-32-38
DIN 6388 collets
clamping diameter testing point running concentricity
d L standard high
from to precision
1 1,6 6 0,015 0,01
1,6 3 10 0,015 0,01
3 6 16 0,015 0,01
6 10 25 0,015 0,01
10 18 40 0,02 0,01
18 24 50 0,02 0,01
24 30 60 0,02 0,01
30 50 80 0,03 0,015
Lindenstraße 8 >> D-78583 Böttingen
Phone: +49 (0) 74 29 / 392 - 0 >> Telefax: - 11 >> www.nann.de >> info@nann.de >> 08 / 2007
>3 3.1