1、 INTERNATIONAL STANDARD IEC 60915Second edition 2006-11Fixed capacitors for use in electronic equipment Preferred dimensions of shaft ends, bushes and for the mounting of single-hole, bush-mounted, shaft-operated electronic components Reference number IEC 60915:2006(E) Publication numbering As from
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8、 +41 22 919 03 00 INTERNATIONAL STANDARD IEC 60915Second edition 2006-11Fixed capacitors for use in electronic equipment Preferred dimensions of shaft ends, bushes and for the mounting of single-hole, bush-mounted, shaft-operated electronic components IEC 2006 Copyright - all rights reserved No part
9、 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 Electrotechnical Commission, 3, rue de Varemb, PO Box 131, CH-1211 Geneva 20, Switzerland Te
10、lephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmailiec.ch Web: www.iec.ch P For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale International Electrotechnical Commission 2 60915 IEC:2006(E) CONTENTS FOREWORD.3 1 Scope and object5 2 Normative referenc
11、es .5 3 Preferred dimensions of shaft ends and bushes .5 3.1 Plain round shaft .6 3.2 Flatted shaft 7 3.3 Slotted shaft8 3.4 Concentric shafts 9 4 Preferred dimensions for the mounting of single-hole, bush mounted shaft - operated electronic components .10 4.1 Single-hole bush mounting with antirota
12、tion lug (non-turn device) on mounting face10 4.2 Single and double flatted bush mounting .13 4.3 Single-hole bush mounting with antirotation lug (non-turn device) on bush 14 4.4 Fixing (or mounting) nuts.15 4.5 Washers (flat, spring and internal tooth)15 Figure 1 Plain round shaft6 Figure 2 Flatted
13、 shaft.7 Figure 3 Slotted shaft.8 Figure 4 Concentric shaft.9 Figure 5 Essential component dimensions .10 Figure 6 Essential panel cut-out dimensions 11 Figure 7 Essential component dimensions .13 Figure 8 Essential panel cut-out dimensions 13 Figure 9 Essential component dimensions .14 Figure 10 Es
14、sential panel cut-out dimensions 14 Figure 11 Fixing (or mounting) nuts15 Table 1 Preferred dimensions of plain round shaft .6 Table 2 Preferred dimensions of flatted shaft .7 Table 3 Preferred dimensions of slotted shaft 8 Table 4 Preferred dimensions of concentric shafts .9 Table 5 Preferred dimen
15、sions of bush, lug (non-turn device) and related place12 Table 6 Preferred dimensions of bush and mounting hole 13 Table 7 Preferred dimensions of bush, lug (non-turn device) and mounting hole 14 Table 8 Preferred dimensions of fixing (or mounting) nuts15 60915 IEC:2006(E) 3 INTERNATIONAL ELECTROTEC
16、HNICAL COMMISSION _ FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT PREFERRED DIMENSIONS OF SHAFT ENDS, BUSHES AND FOR THE MOUNTING OF SINGLE-HOLE, BUSH-MOUNTED, SHAFT-OPERATED ELECTRONIC COMPONENTS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for stan
17、dardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes In
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25、rect or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispen
26、sable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60915 has
27、 been prepared by IEC technical committee 40: Capacitors and resistors for electronic equipment. This second edition cancels and replaces the first edition published in 1987 and constitutes a minor revision, related to Tables, Figures and references. The text of this standard is based on the followi
28、ng documents: CDV Report on voting 40/1654/CDV 40/1783/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. 4 60915 IEC:2006(E) This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. The
29、committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a
30、 revised edition, or amended. A bilingual version of this publication may be issued at a later date. 60915 IEC:2006(E) 5 FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT PREFERRED DIMENSIONS OF SHAFT ENDS, BUSHES AND FOR THE MOUNTING OF SINGLE-HOLE, BUSH-MOUNTED, SHAFT-OPERATED ELECTRONIC COMPONENTS
31、 1 Scope and object This International Standard is applicable to variable capacitors, potentiometers and variable resistors for use in electronic equipment. The dimensions given in this standard have been selected from IEC 60390 and IEC 60620 because the ranges of dimensions included in these standa
32、rds were considered too large and contained too many variants for capacitors and resistors for electronic equipment. Consequently this standard contains preferred dimensions for shaft ends and bushes and for the mounting of single-hole, bush-mounted, shaft-operated variable capacitors, variable resi
33、stors and potentiometers. If other dimensions not listed in this standard have to be used, it is recommended to select them also from the above-mentioned standards. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references,
34、 only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60390, Dimensions of spindle ends for manually operated electronic components IEC 60620, Dimensions for the mounting of single-hole, bush-mounted, spindle-op
35、erated electronic components 3 Preferred dimensions of shaft ends and bushes All dimensions are in mm. 6 60915 IEC:2006(E) 3.1 Plain round shaft Clip B Mounting face a A Figure 1 Plain round shaft Table 1 Preferred dimensions of plain round shaft Dimension A aDimension B General Precision 10 0,5 12,
36、5 0,5 15 0,5 20 0,5 22 0,5 25 0,5 30 1,0 32 1,0 35 1,0 40 1,0 50 1,0 3.0 0 06 , 0 3.00 0 025 , 0 X X X X X X X X 4.0 0 075 , 0 4.00 0 03 , 0 X X X X X X X X X X X 6.0 0 075 , 0 6.00 0 03 , 0 X X X X X bX X X X X 10.0 0 09 , 0 10.00 0 036 , 0 X X X X X X X X X aDimension A includes finish requirement
37、s. bWhen specifically required this variant may have a cross-hole, with a diameter of 3,15 mm 0,05 mm, at 5 0,4 mm from the end of the shaft. The centre line of the cross-hole shall not deviate from the centre line of the shaft by more than 0,1 mm. aChamfer at 40/50 or a radius for a depth of betwee
38、n 5 % and 10 % of the dimension A. 60915 IEC:2006(E) 7 3.2 Flatted shaft Clip B Mounting face a A C D aChamfer at 40/50, or a radius for a depth of between 5 % and 10 % of dimension A. Figure 2 Flatted shaft Table 2 Preferred dimensions of flatted shaft Dimension A a Dimension B b Dimension Cc,dGene
39、ral Precision 10 0,5 12.5 0,5 15 0,5 20 0,5 22 0,5 25 0,5 30 1,0 32 1,0 35 1,0 40 1,0 50 1,0 Screwed knob Push-on knob Dimension D 3,00 0 06 , 0 3,00 0 025 , 0 X X X X X X X X 2,5 0 1 , 0 2.0 0 1 , 0 4,00 0 075 , 0 4,00 0 03 , 0 X X X X X X X X X X 3,5 0 1 , 0 3,0 0 1 , 0 6,00 0 75 , 0 6,00 0 03 , 0
40、 X X X X X X X X X X 5,0 0 2 , 0 4,0 0 1 , 0 4,5 0 2 , 0 10,0 0 09 , 0 10,0 0 036 , 0 X X X X X X X X 9,0 0 2 , 0 7,0 0 1 , 0 From 4 mm in increments of 2 mm (4,6,8,12 mm) Tolerance 0,5 mm aDimension A includes finish requirements. bIf additional values are required, they should preferably be chosen
41、 from the R20 series. cDimensions C and D of the flat shall be selected from the options given in Table 2 and dimension D shall be specified in the detail specification of the component in consideration of the diameter and length of shaft. dThe angle of flat shall be specified in steps of 22,5 5 clo
42、ckwise from the reference line (the position of the reference line shall be defined). 8 60915 IEC:2006(E) 3.3 Slotted shaft Clip B Mounting face a A E FFigure 3 Slotted shaft Table 3 Preferred dimensions of slotted shaft Dimension A aDimension B bGeneral Precision 10 0,5 12,5 0,5 15 0,5 20 0,5 22 0,
43、5 25 0,5 30 1,0 32 1,0 35 1,0 40 1,0 50 1,0 Dimension E Dimension F 3,00 0 06 , 0 3,00 0 025 , 0 X X X X X X X X 0,6 0,1 1,0 0,1 1,0 0,1 1,2 0,2 4,00 0 075 , 0 4,00 0 03 , 0 X X X X X X X X X 0,8 0,1 1,0 0,1 1,2 0,2 1,5 0,2 6,00 0 075 , 0 6,00 0 03 , 0 X X X X X X X X X 1,0 0,1 1,6 0,2 2,0 0,2 10,0
44、0 09 , 0 10,00 0 036 , 0 X X X X X X X X 2,0 0,1 3,0 0,2 aDimension A includes finish requirements. bIf additional values are required they should preferably be chosen from the R20 series. 60915 IEC:2006(E) 9 3.4 Concentric shafts Clip B2 Mounting face a B1 D1 A1 C1 A2 C2 D2 a Figure 4 Concentric sh
45、aft Table 4 Preferred dimensions of concentric shafts Dimension B1 bC2 c dDimension A1 aDimension A2 a10 0,5 12,5 0,5 15 0,5 20 0,5 22 0,5 25 0,5 30 1,0 32 1,0 35 1,0 40 1,0 50 1,0 B2 C 1 dScrewed knob Push- on knob Dimensions D1,D2 c6,00 0 07 , 0 3,00 0 06 , 0 X X X X X X X X X 5,3 0 3 , 0 2,5 0 1
46、, 0 2,0 0 1 , 0 6,00 0 07 , 0 4,00 0 075 , 0 X X X X X X X X X NA 3,5 0 1 , 0 3,0 0 1 , 0 10,0 0 09 , 0 6,00 0 075 , 0 X X X X X X X X B1 + 10 1,0 B1 + 12,5 1,0 9,0 0 2 , 0 5,0 0 2 , 0 4,0 0 1 , 0 0 1 . 0 From 4 mm in increments of 2 mm Tolerance of 0,5 mm aDimension A includes finish requirements.
47、bIf additional values are required, they should preferably be chosen from the R20 series. cDimensions C2, D1 and D2 of the flats shall be selected from the options given in Table 4. dThe angle of flat shall be specified in steps of 22,5 5 clockwise from the reference line (the position of the refere
48、nce line shall be defined). NA = Not applicable. 10 60915 IEC:2006(E) 4 Preferred dimensions for the mounting of single-hole, bush mounted shaft - operated electronic components All dimensions are in mm. 4.1 Single-hole bush mounting with antirotation lug (non-turn device) on mounting face A K L H Thickness of clip and/or thrust washer 1,5 mm max. R P The angular position of the lug ( ) shall be specified in the relevant detail specification of the component. The minimal panel thickness shall be specified in the relevant d
