ISO 9904:1989

INTERNATIONAL IS0
STANDARD
9904
First edition
1989-11-15
Textile machinery and accessories - Steel pins
for spinning preparatory and spinning machinery
Ma thriel pour I ‘indus trie textile - Poin tes en acier pour les matbiels de prhpara tion
de filature et de fiiature
Reference number
IS0 9904 : 1989 (El

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IS0 9904 : 1989 (E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as International Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 9904 was prepared by Technical Committee ISO/TC 72,
Textile machinery and allied machinery and accessories.
Annex A of this International Standard is for information only.
@ IS0 1989
All rights reserved. No part of this publication may be reproduced or utilized in any form or by any
means, electronic or mechanical, including photocopying and microfilm, without permission in
writing from the publisher.
International Organization for Standardization
Case postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland

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INTERNATIONAL STANDARD IS0 9904 : 1989 (E)
Textile machinery and accessories - Steel pins for
spinning preparatory and spinning machinery
1 Scope 3 Round pins
3.1 Dimensions
This International Standard specifies the steel pins recom-
mended for spinning preparatory and spinning machinery.
Round pins .are divided into the following three types:
Type A Round pins for spinning preparatory machinery, in
which
2 Basic dimensions
2
/* = - II for 556 mm < II < 17,46 mm
The basic dimensions of the pins are given in table 1.
3
3
I* = - II for 19,05 mm < II G 50,8 mm
4
Table 1 - Basic dimensions of pins
(see figures 1 and 2) Type B Hackle pins for bast fibre spinning machinery, in
which
Corresponding
Corresponding
dimension 1
Number dimension Number
l* = -I,
mm
2
1 7,62 17 I,42
Type C Card pins, in which
18
2 7,Ol w
I,07
19
3 6,35
1
20 0,99
l* = - I,
4 5,97
4
21
om
5 5,39
22 0,79
6
4m
The dimensions of the various types are shown in figure 1 and
23 0,71
7 4,47
given in table 2.
24 0,62
8 4,06
25 0,535
9 3,76
26
Or5
IO 3,35
27
O,M
11 2,95
28 0,38
12 2,62
29 0,355
13
234
30 0,33
14 I,98
31
0,3
15 I,79
32 0,28
16 I,63
33 0,25
Figure 1 - Round pin

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IS0 9904 : 1989 (El
Table 2 - Dimensions of the various types of round pin
Dimensions in millimetres
Code
number
Length -
7 4,47 B
A
8 B
4,06
0
B
0,025
cccccc
cccccc
A A A
B B
cccccc
cccccc
A A A
B B B
C C
ccccccc
(11 l/2) 2,78
C ccccccc
I i
A A A
12 *
B B B
C C cc
...