Namco Dieheads - Style DR
 A rotating Diehead, designed for use on multi-spindle autos, rotary transfer machines and special purpose threading machines. Its rugged, high precision construction is ideal for the production of accurate threads in medium to very high volumes. Opening and closing are by external yoke. Alternatively, solid adjustable, non-opening versions can be adapted for use on reversing spindles fitted with lead screws.
This highly versatile Diehead can be used for;
Diehead Sizes
|
Diehead
|
Dimension - inch
|
|
size
|
A
|
B
|
C
|
D
|
E
|
F
|
G
|
H
|
J
|
K
|
L
|
N
|
P
|
|
5/16
|
1.938
|
1.131
|
1.750
|
0.750
|
0.375
|
1.375
|
0.375
|
3.938
|
1.563
|
1.375
|
0.375
|
1.938
|
|
|
3/8
|
2.625
|
1.719
|
2.281
|
1.000
|
0.563
|
1.375
|
0.375
|
5.359
|
2.063
|
1.688
|
0.797
|
2.469
|
0.250
|
|
9/16
|
2.875
|
1.875
|
2.625
|
1.500
|
0.625
|
1.844
|
0.563
|
6.109
|
2.406
|
1.875
|
0.781
|
3.000
|
0.250
|
|
13/16
|
3.625
|
2.063
|
2.563
|
1.500
|
0.875
|
1.938
|
0.563
|
6.219
|
2.219
|
1.813
|
0.781
|
3.250
|
0.250
|
|
1
|
4.063
|
2.250
|
2.688
|
1.500
|
1.063
|
2.000
|
0.563
|
6.531
|
2.375
|
1.875
|
0.781
|
3.500
|
0.375
|
|
1.1/16
|
3.875
|
2.063
|
2.563
|
1.500
|
1.125
|
2.000
|
0.563
|
6.219
|
2.219
|
1.813
|
0.781
|
3.250
|
0.375
|
|
1.5/8
|
4.875
|
2.250
|
3.625
|
2.750
|
1.688
|
3.500
|
0.750
|
7.875
|
3.281
|
2.688
|
0.984
|
4.594
|
0.750
|
DR Diehead capacities
|
Diehead
|
|
|
Straight threads
|
|
|
Pipe
|
|
Coarsest
|
|
Size
|
|
Minimum
|
|
Maximum
|
|
threads
|
|
pitch
|
|
inch
|
|
inch
|
mm
|
|
inch
|
mm
|
|
inch
|
|
tpi
|
|
5/16
|
|
0.056
|
1.40
|
|
5/16
|
7.90
|
|
1/8
|
|
18
|
|
3/8
|
|
3/16
|
4.80
|
|
3/8
|
9.50
|
|
1/8
|
|
16
|
|
9/16
|
|
1/4
|
6.35
|
|
9/16
|
14.30
|
|
3/8
|
|
11
|
|
13/16
|
|
1/4
|
6.35
|
|
13/16
|
20.60
|
|
1/2
|
|
9
|
|
1
|
|
3/8
|
9.50
|
|
1
|
25.40
|
|
3/4
|
|
8
|
|
1.1/16
|
|
1/2
|
12.70
|
|
1.1/16
|
27.00
|
|
3/4
|
|
8
|
|
1.5/8
|
|
1/2
|
12.70
|
|
1.5/8
|
41.27
|
|
1.1/2
|
|
6
|
Spares
Click here for information on DR Style spares
|
Namco Dieheads 