1、BRITISH STANDARD BS ISO 5290:2001 Belt drives Grooved pulleys for narrow V-belts Groove sections 9N/J, 15N/J and 25N/J (effective system) ICS 21.220.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 5290:2001 This British Standard, having been prepared under the directi
2、on of the Engineering Sector Policy and Strategy Committee title, was published under the authority of the Standards Policy and Strategy Committee on 25 October2001 BSI 25 October2001 ISBN 0 580 38535 3 National foreword This British Standard reproduces verbatim ISO 5290:2001 and implements it as th
3、e UK national standard. The UK participation in its preparation was entrusted to Technical Committee MCE/10, Belts and Pulley drives, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Stand
4、ards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standar
5、d does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the respo
6、nsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cov
7、er, the ISO title page, pages ii to iv, pages 1 to 10, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 5290:2001(E)INTERNATIONAL STAND
8、ARD ISO 5290 Fourth edition 2001-09-01 Belt drives Grooved pulleys for narrow V-belts Groove sections 9N/J, 15N/J and 25N/J (effective system) Transmissions par courroies Poulies gorges pour courroies trapzodales troites Sections de gorge 9N/J, 15N/J et 25N/J (systme effectif) ii ISO 5290:2001(E) ii
9、iContents Page Foreword iv 1 Scope 1 2 Normative references1 3 Terms and definitions .1 4 Specifications 1 4.1 Groove profiles 1 4.1.1 Groove angle, 1 4.1.2 Profile dimensions.2 4.2 Effective diameter, d e 2 4.2.1 Series of effective diameters2 4.2.2 Groove angles in relation to given effective diam
10、eters.2 4.2.3 Smallest effective diameters in relation to given groove sections 2 5 Geometrical inspection of grooves .6 5.1 Groove profile 6 5.2 Groove spacing6 5.3 Effective diameter6 5.4 Run-out tolerances 6 6 Quality, surface finish and balancing of pulleys6 Annex A (informative) Background info
11、rmation 9 Bibliography10 ISO 5290:2001(E) iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each memb
12、er body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Ele
13、ctrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for votin
14、g. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of patent rights. ISO shall not be held responsible for identifying an
15、y or all such patent rights. International Standard ISO 5290 was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 1, Friction belt drives. This fourth edition cancels and replaces the third edition (ISO 5290:1993), which has been technically revised.
16、 Annex A of this International Standard is for information only. INTERNATIONAL STANDARD ISO 5290:2001(E)1Belt drives Grooved pulleys for narrow V-belts Groove sections 9N/J, 15N/J and 25N/J (effective system) 1 Scope This International Standard specifies the principal characteristics of grooved pull
17、eys (for groove sections 9N/J, 15N/J and 25N/J) intended to take both single and joined narrow V-belts for industrial power transmission drives. Some background information on the series of effective diameters is given in annex A. NOTE The effective width of a groove is regarded as the basic dimensi
18、on of standardization in the effective system for grooves and for the corresponding narrow V-belts considered as a whole. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated
19、 references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undat
20、ed references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 254:1998, Belt drives Pulleys Quality, finish and balance ISO 1081:1995, Belt drives V-belts and V-ribbed belts, and correspondin
21、g grooved pulleys Vocabulary ISO 9980:1990, Belt drives Grooved pulleys for V-belts (system based on effective width) Geometrical inspection of grooves 3 Terms and definitions For the purposes of this International Standard, the terms, definitions and symbols relating to drives using V-belts (i.e. b
22、elts and grooved pulleys) given in ISO 1081 apply. 4 Specifications 4.1 Groove profiles 4.1.1 Groove angle, The groove angle (see Figure 1) shall have one of the following values: = 36 (for groove section 9N/J only); = 38; ISO 5290:2001(E) 2 = 40; = 42. NOTE The relationship between the groove angle
23、 and the range of effective diameters is given in Table 4. 4.1.2 Profile dimensions The dimensions given in Table 1 and shown in Figures 1 and 2 shall have the values specified in Table 2. NOTE The straight sides of the groove should be at least as high as d e 2 h 2 . 4.2 Effective diameter, d e4.2.
24、1 Series of effective diameters See Table 3. 4.2.2 Groove angles in relation to given effective diameters See Table 4. 4.2.3 Smallest effective diameters in relation to given groove sections See Table 5. Table 1 Groove profile specifications Dimension Symbol Effective width w eGroove depth h gSidewa
25、ll bevel depth h 2Groove land height h 1Effective diameter d eEffective line differential b eGroove spacing e Distance between edge of pulley and first groove centre f ISO 5290:2001(E) 3NOTE The pitch line position can only be given approximately. The approximate pitch diameter, d p , of a pulley ca
26、n be calculated by the formula: pee 2 ddb =- Figure 1 Groove profile Figure 2 Groove profile Sidewall bevel depth Groove land height Table 2 Profile dimensions Dimensions and tolerances in millimetres Groove section w e h 1 h 2b eah gmin e Tolerance on e bSum of deviations of e cf min. 9N/J 8,9 0,2
27、0,3 0,6 8,9 10,3 0,25 0,5 9 15N/J 15,2 0,25 0,4 1,3 15,2 17,5 0,25 0,5 13 25N/J 25,4 0,3 0,5 2,5 25,4 28,6 0,4 0,8 19 aThis differential can tend to zero. bThis tolerance applies to the distance between the axes of two consecutive groove profiles. cThe sum of all deviations from the nominal value, e
28、, for all grooves in any one pulley shall not exceed the value stated in this table. ISO 5290:2001(E) 4 Table 3 Series of effective diameters Dimensions in millimetres Groove sections d e9N/J 15N/J 25N/J Status ad eStatus ad eStatus ad enom. min. max. max. max. 67 67 * 71 71 71 * 75 75 75 * 79 80 80
29、 * 84 85 85 * 89 90 90 * 94 95 95 * 99 100 100 * 104 106 106 * 110 112 112 * 116 118 118 * 122 125 125 * 129 132 132 * 136 140 140 * 144 150 150 * 154 160 160 * 164 170 170 180 180 * 184 * 187 190 190 * 197 200 200 * 204 * 207 212 212 * 219 224 224 * 228 * 231 236 236 * 243 250 250 * 254 * 257 265 2
30、65 * 272 280 280 * 284,5 * 287 300 300 * 307 315 315 * 320 * 322 * 320 335 335 * 340,4 355 355 * 360,7 * 362 * 360,7 375 375 * 381 400 400 * 406,4 * 407 * 406,4 ISO 5290:2001(E) 5Table 3 (continued) Groove sections d e9N/J 15N/J 25N/J Status ad eStatus ad eStatus ad enom. min. max. max. max. 425 425
31、 * 431,8 450 450 * 457,2 * 457,2 * 457,2 475 475 * 482,6 500 500 * 508 * 508 * 508 530 530 * 538,5 560 560 * 569 * 569 * 569 600 600 * 609,6 630 630 * 640,1 * 640,1 * 640,1 670 670 710 710 * 721,4 * 721,4 * 721,4 750 750 800 800 * 812,8 * 812,8 * 812,8 850 850 900 900 * 914,4 * 914,4 950 950 1 000 1
32、 000 * 1 016 * 1 016 1 060 1 060 1 120 1 120 * 1 137,9 * 1 137,9 1 180 1 180 1 250 1 250 * 1 270 * 1 270 1 320 1 320 1 400 1 400 * 1 422,4 * 1 422,4 1 500 1 500 1 600 1 600 * 1 625,6 * 1 625,6 1 700 1 700 1 800 1 800 * 1 828,8 * 1 828,8 1 900 1 900 2 000 2 000 * 2 032 2 120 2 120 2 240 2 240 * 2 275
33、,8 2 360 2 360 2 500 2 500 * 2 540 a Effective diameters marked with a double asterisk (*) are especially recommended. Effective diameters marked with a single asterisk (*) are recommended.ISO 5290:2001(E) 6 Table 4 Groove angles Dimensions in millimetres Groove angles, 36 38 40 42 Groove section Ef
34、fective diameters, d e9N/J d eu 90 90 300 15N/J d eu 250 250 400 25N/J d eu 400 400 560 Table 5 Smallest effective diameters Groove section Smallest effective diameter mm 9N/J 67 15N/J 180 25N/J 315 5 Geometrical inspection of grooves 5.1 Groove profile The corresponding limit gauges in accordance w
35、ith 3.2.3 of ISO 9980:1990 shall be used. 5.2 Groove spacing A groove spacing locator incorporating sets of interchangeable balls as indicated in 5.3 and in accordance with clause 4 of ISO 9980:1990 shall be used. 5.3 Effective diameter Cylindrical checking balls with the values of the correction te
36、rm given in Table 6 in accordance with clause 5 of ISO 9980:1990 shall be used. 5.4 Run-out tolerances In accordance with clause 6 of ISO 9980:1990, the tolerance on radial and axial run-outs shall be checked using the values given in Table 7. 6 Quality, surface finish and balancing of pulleys The q
37、uality, surface finish and balancing of pulleys are specified in ISO 254. ISO 5290:2001(E) 7Figure 3 Fittings of balls or rods in the groove to be checked Table 6 Checking balls or rods and correction terms (see Figure 3) Dimensions in millimetres Diameter of balls or rods d Groove section Groove an
38、gle nom. tol. aRounded correction term 2h s9N/J 36 to 42 9 0 0,036 -11 15N/J 38 to 42 14,7 0 0,043 -16 38 28 40 28 25N/J 42 25 0 0,052 -29 aTolerances are in accordance with ISO 286-2:1988, tolerance grade h9. ISO 5290:2001(E) 8 Table 7 Tolerances on radial and axial run-outs Dimensions and toleranc
39、es in millimetres Effective diameter Tolerances on radial and axial run-outs d enom. radial t 1axial measured at level a a(see Figure 14 of ISO 9980:1990) t 2d e u 125 0,2 0,3 125 d eu 315 0,3 0,4 315 d eu 710 0,4 0,6 710 d eu 1 000 0,6 0,8 1 000 d eu 1 250 0,8 1 1 250 d eu 1 600 1 1,2 1 600 d eu 2
40、500 1,2 1,2 aa = b e , where b eis the effective line differential. ISO 5290:2001(E) 9Annex A (informative) Background information A.1 In this International Standard, the effective width is used as a basic dimension to describe the pulley grooves. For this reason, only the effective diameter of the
41、pulley can be considered as the nominal diameter. A.2 A series of preferred numbers was considered a good basis on which to grade the diameters and it was decided that this should be the R20 series, in accordance with ISO 3, which could be complemented, for smaller diameters, by intermediate values
42、from the R40 series, in accordance with ISO 3. It was also decided that values from the R10 series, in accordance with ISO 3, should be especially recommended. A.3 As industry in the USA requires a tolerance of 1, 6 0 +% to allow for the difference between inch and millimetre dimensions, the interes
43、ts of all parties can be covered by choosing, as the maximum effective diameter, the nominal diameter, plus 4 mm for pulleys with groove section, 9N/J, 7 mm for pulleys with groove section, 15N/J, 1,6 % for pulleys with groove section, 25N/J, and the minimum effective diameter can be equal to the no
44、minal diameter because all interested parties require positive tolerances only. ISO 5290:2001(E) 10 Bibliography 1 ISO 3:1973, Preferred numbers Series of preferred numbers 2 ISO 286-2:1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and
45、shafts 3 ISO 8419: 1) , Belt drives Narrow V-belts Sections 9N/J, 15N/J and 25N/J (lengths in effective system) 1)To be published. (Revision of ISO 8419:1994)BS ISO 5290:2001 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible f
46、or preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or
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