97 / 629
3-Wire Measuring Process
Specifications
Accuracy wires
DIN 2269, Grade 1
Tolerance wires ±1 µm
Contents
18 pairs of wires ø 0,17 mm up to ø
3200 mm
Delivered
Sets including wooden box
a
a
d
d
p
a
a
P =thread pitch
d
D
=measuring wire Ø
d
2
=pitch diameter
M =theoretical dimension at
measuring pressure d
a =pitch angle
d =correction factor
Series 313
This three-wire measuring process is one of the most precise procedures for determining the pitch
diameter of threads. It offers you the following benefits:
– The measuring wires are hardened and precision-lapped.
– They are placed onto the spindle and anvil of an outside micrometer, allowing you to measure
the pitch diameter of threads.
313-101
1) Wire in set
No.
Spindle diameter
[mm]
313-101
6,35
313-102
8
Individual wires (content of 313-101)
One pair, support spindle ø 6,35 mm
No.
Measuring wire ø
[mm]
952131
0,17
952132
0,195
952133
0,22
952134
0,25
952135
0,29
952136
0,335
952137
0,39
952138
0,455
952139
0,53
952140
0,62
952141
0,725
952142
0,895
952143
1,1
952144
1,35
952145
1,65
952146
2,05
952147
2,55
952148
3,2
Individual wires (content of 313-102)
One pair, support spindle ø 8 mm
No.
Measuring wire ø
[mm]
952149
0,17
952150
0,195
952151
0,22
952152
0,25
952153
0,29
952154
0,335
952155
0,39
952156
0,455
952157
0,53
952158
0,62
952159
0,725
952160
0,895
952161
1,1
952162
1,35
952163
1,65
952164
2,05
952165
2,55
952166
3,2
All products to be sold to commercial customers. Product illustrations are without obligation. Product descriptions, in particular any and all
technical specifications, are only binding when explicitly agreed upon. For suggested retail prices, please refer to the separate price list.
97