1、DEUTSCHE NORM Auaust 199% Classical endless V-belts Dimensions DIN 221 5 ICs 21.220.1 o Descriptors: V-belts, dimensions. Supersedes March 1975 edition. Endlose Keilriemen - Klassische Keilriemen - Mae In keeping with current practice in standards published by the International Organization for Stan
2、dardization (ISO), a comma has been used throughout as the decimal marker. Dimensions in mm Foreword This standard has been prepared by Technical Committee Keilriemen of the Normenausschu Kautschuk- technik (Rubber Technology Standards Committee). See Explanatory notes for connection with Internatio
3、nal Standard IS0 4184 : 1992. See DIN 2218 for design and performance characteristics of belt drives. Amendments The following amendments have been made to the March 1975 edition: a) some terms and definitions set out in IS0 1081 have been included; b) belt profile types 5, 8, 20 and 25 have been om
4、itted; c) specifications have been brought into line with IS0 41 83 and IS0 41 84. Previo us edit ions DIN 2215-1 : 1950-07; DIN 221 5: 1934-06, 1940-1 1, 1975-03. 1 Scope This standard specifies belt lengths and their tolerances, the allowable centre distance variations, the minimum diameter of gro
5、oved pulleys, and the corresponding checking procedures for classical V-belt profiles Y, Z, A, B, C, D and E. 2 Normative references This standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the te
6、xt, and the titles of the publications are listed below. For dated references, subsequent amendments to or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to ap
7、plies. DIN 221 7-1 Pulleys for V-belts DIN 2218 Endless V-belts for use in mechanical engineering - Design of drive systems and perform- ance characteristics IS0 1081 : 1995 Belt drives- V-belts and V-ribbed belts, and corresponding grooved pulleys -Vocabulary IS0 4183 : 1995 Belt drives - Classical
8、 and narrow V-belts - Grooved pulleys (system based on datum width) IS0 41 84 : 1992 Belt drives - Classical and narrow V-belts - Lengths in datum system IS0 9608 : 1994 V-belts - Uniformity of belts - Test method for determination of centre distance variation Continued on pages 2 to 6. Translation
9、by DIN-Sprachendienst. In case of doubt, the German-language original should be consulted as the authoritative text. No pari of this translation may be reproduced without the prior permission of Ref. No. DIN 2215 : 1998-08 English price group 06 Sales No. 0106 04.99 V Deutsches Institut fur Normung
10、e. V., Berlin. Luth Verlag GmbH, D-10772 Berlin, has the exclusive right of sale for German Standards (DIN-Normen). Page 2 3 Concepts DIN 221 5 : 1998-08 The following terms and definitions, set out in IS0 1081, shall apply. 3.1 Pitch width Width of the belt at its pitch zone (neutral zone), designa
11、ted by wp. It remains unchanged when the belt is bent perpendicularly to its base. 3.2 Datum width Groove width characterizing the groove profile, designated byw,. It is a defined value not subject to tolerances and is usually located at the pitch zone of the V-belt for which the pulley groove is in
12、tended. It should coincide with the pitch width of the belt within reasonable tolerances. 3.3 Datum diameter Diameter of the pulley at the datum width of the pulley groove, designated by dd. 3.4 Datum circumference Circumference of a circle with a diameter equal to the datum diameter, designated by
13、C,. 3.5 Datum length Length of a line circumscribing a V-belt at the level of the datum diameter of the measuring pulleys while the belt is at a specified tension, designated by L,. 4 Dimensions and designation 4.1 Groove profile The design shown in this standard is for illustrative purposes only, b
14、ut the dimensions of the groove profiles shall be as specified. I- W I Figure 1: Groove profile Designation for a sheathed V-belt with a type A groove profile and a datum length of 1 550 mm: V-belt DIN 2215 - A 1550 V-belt DIN 2215 - BX 1250 V-belt set DIN 2215 - 3 x B 2500 Designation for a ribbed,
15、 unsheathed V-belt, with a type BX groove profile and a datum length of 1 250 mm: Designation for a set of three sheathed V-belts, with a type B groove profile and a datum length of 2 500 mm: The dimensions of the belt cross sections are not standardized, and the illustration shown here does not spe
16、cify design features. V-belts shall be manufactured to obtain a good fit in the pulley grooves, as specified in DIN 221 7-1. In particular, the neutral zone of the belt should be at the level of the datum width. Page 3 DIN 221 5 : 1998-08 Sheathed Ribbed and unsheathed Sheathed Ribbed and unsheathed
17、 Table 1: Belt dimensions Y 6 6 53 4 28 YX X6 6 5,3 4 20 Z 10 10 8s 6 50 ZX x10 10 8,5 6 40 7- I I I I l I Y I YX I “IJ wluLr, I (nominai I lG iuerimcanori I Belt tvDe Z zx IA AX I B BX ICI cx D /E 295 I) Symbols not to be used for new belts. 295 312 31 2 437 605 61 O 610 1148 1308 2075 3080 4.2 Bel
18、t length For the belt datum length, L, refer to the manufacturers product information. Table 2 shows the normal range of datum lengths for different profiles. Table 2: Normal range of datum lengths and 865 I 865 and and and and and and 2522 I 1522 5030 I 3380 7140 I 3390 8058 I 3408 11275 12580 I l)
19、 The manufacturer should be consulted on datum lengths outside these ranges. Datum length, L, Upto 250 Over 250upto 315 Over 315up to 400 Over 400upto 500 Over 500upto 630 Over 630upto 800 Over 800upto 900 Over 900upto 1250 Maximum allowable difference in the datum lengths of a set of V-belts Limit
20、deviations +8 -4 +9 -4 + 10 -5 + 11 -6 + 13 -6 + 15 -7 + 17 -8 2 + 19 - 10 Datum length, L, up to 1 O00 Over 1 O00 up to 2 O00 Over 2 O00 up to 5 O00 Over 5000 + 23 - 11 + 27 - 13 Over 1250 up to 1600 Over 1600 up to 2000 Groove profile YNX UZX AtAX BIBX CICX D E Centre distance variation, Aal) 12 1
21、33 1,6 22 2 3,4 25 3,4 + 31 - 16 + 37 - 18 Over 2000 up to 2500 Over 2500 up to 3 150 8 Over 3 150 up to 4 O00 + 44 - 22 + 52 - 26 Over 4000 up to 5000 I I 12 Over 5000 up to 6 300 + 63 - 32 Over 6300up to 8000 I + 77 - 38 20 Over 8 O00 up to1 O O00 + 93 - 46 I + 112 - 56 Over 10000 up to12500 I 32
22、+ 140 - 70 + 170 - 85 Over 12 500 up to1 6 O00 Over 16 O00 up to20 O00 48 1 ) Aa = amax - amin. Page 5 DIN 221 5 : 1998-08 5 Material and design Unless otherwise agreed between customer and manufacturer, the choice of material and design of V-belts shall be left to the latter. 6 Checking and measure
23、ment 6.1 Measuring belt length The belt is to be placed into two identical measuring pulleys (cf. figure 2) with grooves as shown in figure 3 and dimensions as given in table 5. The sliding pulley shall be subjected to a measuring force, Q, as specified in table 5. In order that the belt sits proper
24、ly in the groove, the pulleys should be rotated so that the belt completes one to three revolutions. The distance between the axes of the two pulleys shall then be measured. The datum length of the belt, L, is given by the following equation: L, = amax + amin + C, where amax amin C, is the maximum d
25、istance between pulley axes, in mm; is the minimum distance between pulley axes, in mm; is the pulley datum circumference, in mm. iQ O 1 50 Figure 2: Measuring belt length Figure 3: Steel measuring pulley Page 6 DIN 221 5 : 1998-08 Table 5: Measuring pulleys and measuring force Datum Groove diameter
26、, cldi), wd, in mm t, in mm a) in mm I10 f 0,05 I Minimum Groove profile Datum width, groove depth, 57,30 38“ 95,50 AJAX 34 o 95,50 143,24 BJBX 14 18 34“ 127,32 38“ 190,99 GJCX 19 24 34“ 222,82 38“ 31 a,3i D 27 28 36“ 318,31 E 32 33 36“ 572,96 I) Where two values are given, either the smaller or lar
27、ger pulley may be used. Datum Measuring in mm 90 40 180 110 300 30 O 200 450 400 300 600 700 750 1 O00 1000 1 1400 1800 I i800 6.2 Centre distance variation The centre distance variation shall be checked as in IS0 9608. Explanatory notes This standard is based on IS0 4184 with regard to tolerances,
28、centre distance variation, checking procedures and designation of classical V-belts. Table 2 includes the normal range of datum lengths for each belt profile but not inside lengths or pitch lengths, to help prevent the wrong lengths being supplied for particular profiles. This standard also follows IS0 4183 with regard to specifying the minimum datum diameter of grooved pulleys and the dimensions of measuring pulleys. Belts which conform to the present standard are interchangeable with those which conform to the 1975 edition.
