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  2. Flexible standard component system
  3. 03000
  4. Centering clamps, mandrel collets, machinable collets
  5. Centering clamps with ball or hexagon segments
  6. centering clamp with hexagonal segments, style B
    7. 03158-202306
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.
22,5
D=max. diameter
26,5
A
7
Application
machined
Clamping force max. kN
4,5
Clamping type
internal clamping
D1
M6
D2
20
D3
3
D4
6,4
H
28,8
H1
19,8
H2
14,2
H3
13
H4
2,3
K
4
L
6
M
4
No. of hex
3
SW
5
Tightening torque max. Nm
17
hexagon
4
~ 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

Description

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 hexagon for surface-sensitive holes.
Technical Data
Repetitive accuracy ±0.025
Concentric accuracy ±0.05
Application
To position and center existing bores on the machining surface.
Advantages
- Precise self-centering.
- Distortion free clamping.
- Large spread range.
- Low overall height.
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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