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  2. Flexible standard component system
  3. 03000
  4. Centring clamps, mandrel collets, machinable collets
  5. Centring clamps with ball or hexagon segments
  6. Centring clamp with hexagonal segments, Form B
    7. 03158-204708
Designation
Centring clamp
Version 1
hexagon
Form
B
Main material
steel
Surface finish body
hardened and black oxid finish
Component material
steel
Surface finish component
hardened and ground
D=Diameter min.
46,5
D=max. diameter
54,5
A
11
Application
machined
Clamping force max. kN
6,5
Clamping type
internal clamping
D1
M8
D2
30
D3
4
D4
8,4
H
39,2
H1
27,2
H2
18
H3
15,7
H4
4,6
K
8
L
7,5
M
4,5
No. of hex
6
SW
6
Tightening torque max. Nm
43
UNSPSC Code
31162800
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

Description

Material
Body 1.2842.
Ball and hex segments 1.4112.
Tension spring 1.4310.
Version
Body hardened and black oxidised.
Ball and hex segments hardened and ground.
Note
Form B: with hexagon for surface-sensitive holes.
Technical Data
Repetitive accuracy ±0.025
Concentric accuracy ±0.05
Application
To position and centre existing bores on the machining surface.
Advantages
- Precise self-centring.
- Distortion free clamping.
- Large spread range.
- Low overall height.
Drawing reference
Form A:
With balls for holes where light marking is acceptable.
Form B:
With hexagons for sensitive hole surfaces.

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