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1、INTERNATIONAL STANDARD IS0 4183 Third edition 1995-07-01 Belt drives - Classical and narrow V-belts - Grooved pulleys (system based on datum width) Transmissions par courroies - Courroies trap6zoi dales classicyes et 6troites - Poulies 2 gorges (syst&me base sur la largeur de rkfgrence) Reference nu
2、mber IS0 4183 1995(E) IS0 4183:1995(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 bod
3、y 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. IS0 collaborates closely with the International Electrote
4、chnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vo
5、te. International Standard IS0 4183 was prepared by Technical Committee lSO/TC 41, Pulleys and belts hcluding veebelts), Subcommittee SC 1, Veebelts and grooved pulleys. This third edition cancels and replaces the second edition (IS0 4183.19891, of which it constitutes a minor revision. 0 IS0 1995 A
6、ll rights reserved Unless otherwise specified, 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 P
7、ostale 56 l CH-1211 Geneve 20 l Switzerland Printed in Switzerland ii INTERNATIONAL STANDARD 0 IS0 IS0 4183:1995(E) Belt drives - Classical and narrow V-belts - Grooved pulleys (system based on datum width) 1 Scope This International Standard specifies the principal di- mensions of grooved pulleys f
8、or classical V-belts (sections Y, Z, A, B, C, D and E) and narrow V-belts (sections SPZ, SPA, SPB and SPC) specified in the terminology system based on datum width. It is important that narrow belts are not used with pulleys uniquely designed for classical belts, and, on the other hand, that multipl
9、e belt drives are not used with joined V-belts 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publi- cation, the editions indicated were valid. All standards are subject to
10、revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most re- cent editions of the standards indicated below. Members of IEC and IS0 maintain registers of cur- rently valid International Standards. IS0 3: 1973, Preferr
11、ed numbers - Series of preferred numbers. IS0 254:1990, Belt drives - Pulleys - Quality, finish and balance. IS0 255:1990, Belt drives - Pulleys for V-belts (sys- tem based on datum width) - Geometrical inspection of grooves. IS0 1081:1980, Drives using V-belts and grooved pulleys - Terminology. IS0
12、 1101 :I 983, Technical drawings - Geometrical tolerancing - Tolerancing of form, orientation, lo- cation and run-out - Generalities, definitions, sym- bols, indications on drawings. 3 Preliminary notes 3.1 The datum width is regarded as the basic di- mension of standardization for the groove and fo
13、r the corresponding classical and narrow V-belts considered as a whole. 3.2 Knowledge of the datum line position and of the datum width is essential for defining the groove pro- file, the datum diameter of the pulley and the location of the belt in the pulley groove 1 IS0 4183:1995(E) 0 IS0 4 Datum
14、widths of profiles 5 Groove angles The datum widths, w& of the profiles are specified in table 1. Table 1 The groove angle c1 (see figure I) shall be one of the following angles: 32”, 34”, 36”, 38” Groove profiles Groove profiles I I wd wd I The tolerance on the groove angle shall be + 0,5”. Classic
15、al V-belts Narrow V-belts mm mm I SPA SPB SPC SPZ SPA SPB SPC 5,3 5,3 8.5 8.5 11 11 14 14 19 19 27 27 32 32 The relationship of groove angle, 1, to datum diam- eter, dd, is given in table4. 6 Dimensions of the groove profiles The dimensions of groove profiles are shown on fig- ure 1 and specified in
16、 table2. Datum I I I I I NOTES 1 The axial and radial circular runout tolerances are shown in accordance with IS0 1101 2 For the values of t, see table3 Figure 1 2 0 IS0 IS0 4183:1995(E) Table 2 Dimensions in millimetres Groove profiles b h Tolerance Sum of f4 Classical Narrow wd e 1) on deviations
17、of V-belts V-belts min min e 2) e 3) min. Y 5,3 13 4.7 8 f. 0.3 f ($6 6 2 83 2 7 12 f 0.3 I!I 0,6 7 SPZ 9 A 11 2,75 8.7 15 + 0,3 f 0,6 9 SPA 11 B 14 3.5 IO,8 19 f 0.4 f 0,8 11.5 SPB 14 C 19 43 14,3 25,5 f 0.5 fl 16 SPC 19 D 27 8.1 19,9 37 f 0.6 * 12 23 E 32 9.6 23,4 44.5 Ii 0.7 Ik 1.4 28 1) The use
18、of higher values for dimension e can be justified in certain special cases, for instance in the case of pressed- sheet pulleys Whenever certain types of pulleys include values of dimension e not in conformity with this International Standard, their use with a standardized pulley may require caution
19、2) The tolerances apply to the distance between the axes of two consecutive grooves 3) The sum of all deviations from the nominal value e for all grooves in any one pulley shall not exceed the value stated in the table. 4) Variations in the valuefshould be taken into consideration in the alignment o
20、f the pulleys 3 -,-,- IS0 4183:1995(E) 0 IS0 7 Datum diameters 7.1 Series of datum diameters The nominal values of datum diameters, c&, specified in table3 are selected from the R 40 series of pre- ferred numbers, in accordance with IS0 3. 4 nom. k 0,8 % mm 20 22,4 25 28 31.5 35.5 40 45 50 53 56 60
21、63 67 71 75 80 85 90 95 100 106 712 118 125 132 140 150 160 170 180 190 200 212 224 236 250 r r mm 02 0.3 0,4 NOTE 1 Table3 also specifies the values, t, of the axial and radial circular runout tolerances, as shown on figure 1 Table 3 Degree of preference for datum diameters according to the groove
22、profiles Y + + + + + + + + + + + + + + + + -I- Z A B C SPZ SPA SPB SPC l l I l l l l * * l l 1 l l * * * * t * l l + + * I . l * * * l D 1 E 4 0 IS0 IS0 4183:1995(E) dd Degree of preference for datum diameters according to the groove profiles nom. I + 0,8 % Y z A B C SPZ SPA SPB SPC D E mm mm 265 *
23、280 l l l l 300 l 315 l l l l 0,s 335 t 355 * l l l + 375 + 400 l . l l + 425 + 450 * I l + 475 + 500 l l * * + + 0.6 530 + 560 I l l + + 600 l l + + 630 L c I, * + + 670 + 710 * l I + + 750 l l + 800 l l l + + W 850 900 1 l + + 950 1 000 l . + + 1 060 + 1 120 I . + + 1 180 1250 l + f 1 1350 1 400 .
24、 + + 1 500 + + 1 600 l + + 1 700 1 800 + + 1 900 + 2 000 l + + 12 2 120 2 240 + 2 360 2 500 + NOTES 1 Datum diameters marked with + are recommended for use with classical V-belts only 2 Datum diameters marked with l are recommended for use with narrow V-belts and classical V-belts 3 Datum diameters
25、not marked are not recommended 5 -,-,- IS0 4183:1995(E) 0 IS0 7.2 Groove angles in relation to given datum diameters Under average operating conditions, the groove angle of pulleys used should be in accordance with the val- ues specified in table4 as a function of the diameter. Table 4 1 Groove prof
26、ile dd. mm, fora= Classical Narrow V-belts V-belts 38“ 36“ 34 32“ Y 60 - 315 - g315 - - 80 ,118 190 D 475 600 600 - - 7.3 Minimum datum diameters The minimum datum diameters of grooved pulleys as a function of the V-belts are specified in table 5. Table 5 Groove profile for use with V-belts 6 min mm
27、 Y 20 z 50 A 75 B 125 C 200 D 355 E 500 SPZ 63 SPA 90 SPB 140 SPC 224 7.4 Differences between datum diameters of any two grooves The maximum differences between the datum diam- eters of any two grooves of the same pulley, as far as they are used for a multiple V-belt drive, are specified in table 6.
28、 Table 6 Groove profiles Y 083 1 Z, A, B, SPZ, SPA, SPB 1 0.4 I I C, D, E, SPC I 03 I 8 Quality, surface finish and balancing of pulleys The quality, surface finish and balancing of pulleys are specified in IS0 254 9 Inspection The geometrical inspection of pulleys and grooves is specified in IS0 255. IS0 4183:1995(E) ICS 21.220.10 Descriptors: belt drives, V-belts, pulleys, grooved pulleys, dimensions Price based on 6 pages