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  3. 03000
  4. Centring clamps, mandrel collets, machinable collets
  5. Mandrel collets
    6. 03157-020407
Item
Mandrel Collet
Main material
structural steel
Component material
mild steel
Surface finish body
black oxidised
Surface finish component
case-hardened
D=Diameter min.
4,1
D=max. diameter
7,4
Accessories NLM
03157-01-0212
Application
machined
Clamping force max. kN
1,1
Clamping type
internal clamping
D1
20 h9
D2
13,7
D3 for screw ISO 10642
M2
D4 Tapered- head bolt
M2
H
10,7
H1
7,6
H2
6,1
H3
4,1
SW Tapered- head bolt
1,5
Tightening torque max. Nm
0,7

Description

Material
Mandrel mild steel.
Taper-head screw low-carbon steel
Version
Mandrel black oxidised.
Taper-head screw case-hardened.
Note
The mandrel collet is ideal for finish machining turned parts. The diameter “D” can be turned or milled to suit the workpiece ID.
Low design - no interfering clamp straps.
Tightened using a hex socket wrench or hydraulics.

* D min. = smallest diameter to which “D” may be turned or milled.
Assembly
Expand the mandrel approx. 0.1 mm over the relaxed diameter. Turn or mill the mandrel to suit the internal diameter of the workpiece. The base flange can be centred in a pocket or using dowel pins.
Drawing reference
1) taper-head screw
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