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  2. Flexible standard component system
  3. 03000
  4. Centering clamps, mandrel collets, machinable collets
  5. Centering clamps with ball or hexagonal segments, operated from below
  6. Centering clamps with hexagonal segments, operated from below, Style B
    7. 03158-0203906
Designation
Centering clamp
Version 1
hexagon
style
B
Main material
steel
Surface finish body
hardened and black oxid finish
Component material
steel
Surface finish component
hardened and ground
D=Diameter min.
38,5
D=max. diameter
46,5
A
11
Application
machined
Clamping force max. kN
6,5
Clamping type
internal clamping
D1
M12
D2
30
D3
4
D4
M6
H
34,2
H1
27,2
H2
17,8
H3
15,5
H4
4,6
K
8
L
7,5
L1
22,5
L2
20
M
4,5
No. of hex
6
SW
10
Steel code
1.2842
Tightening torque max. Nm
17
hexagon
8
~ CONFLICT MINERALS 3TG status
no intentional 3TG
~ CP65 substance 2 cancer
soots, tars, and mineral oils
~ PFAS free?
yes
~ REACH SVHC-free?
yes
~ RoHS conformity
yes, without exemption
~ TSCA 6(H) conformity
yes

Descripción

Material
Body 1.2842.

Ball and hex segments 1.4112.

Tension spring 1.4310.
Version
Body hardened and black oxidized.
Ball and hex segments hardened and ground.
Note
style B: With hexagons for sensitive hole surfaces.
Technical Data
Repetitive accuracy ±0.025
Concentric accuracy ±0.05
Application
For center positioning and clamping in blind holes. Operated from below, manual or automatic using pneumatics or hydraulics.
Advantages
- Precise self-centering.
- Distortion free clamping.
- Large spread range.
- Low overall height.
- Positive down force.
Drawing reference
style A:
With balls for holes where light marking is acceptable.
style B:
With hexagons for sensitive hole surfaces.

1) Mounting aid:
pin to accurately position the mandrel segments.
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