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1、UDC 621.833.2-187 J I S B*3704 78 m 4733608 O030882 2 m 1- JIS JAPANESE I NDUSTRIAL STANDARD Accuracy for Bevel Gears Translated and Published by Japanese Standards Association Printed in Japan 11 s J I S B*i1?04 78 U 4933688 CIOLO883 4 Translation without guarantee standard in Japanese is to be evi
2、dence In the event of any doubt arising, the original J I S B*1704 78 4933b08 8810884 b UDC 621.833 2-1 87 JAPANESE INDUSTRIAL STANDARD J I S Accuracy for Bevel Gears B 1704-1978 ? I . Scope This Japanese Industrial Standard specifies the accuracy for bevel gears() hereinafter referred to as the ”ge
3、ars”, of O. 4 to 25 mm in outer transverse module and 3 to 1600 mm in outer pitch circle diameter. 5 Note (I) This standard covers straight, skew and spiral bevel gears. Remark: This standard may apply to hypoid gears, as appropriate. 2. Definitions For the purposes of this standard, following defin
4、itions apply: (1) single pitch error A value subtracted by its correct pitch from an actual pitch of adjacent teeth on the pitch circle at mean cone distance. (2) pitch variation An absolute value of difference of adjacent two pitches on the pitch circle at mean cone distance. (3) accumulative pitch
5、 error A value subtracted by its correct value from sum of actual values of pitches between two arbitrary teeth on the pitch circle at mean cone distance. (4) runout The maximum difference of positions in the vertical direction of pitch cone, when a contacting piece of ball and the like is being tou
6、ched nearby the pitch circle to both side tooth faces of the space at mean cone distance. 3. Grades The grades of the gears shall be classified into nine grades according to However, combination of different grades for different errors or accuracy. selection of necessary items only may be allowed ac
7、cording to the service purposes Grade-O, Grade-I , Grade-2, Grade-3, Grade-4, Grade-5, Grade-6 , Grade-7 and Grade-8 i Reference Standards: JIS B O1 02-Gear Nomenclature JIS B 0401-Limits and Fits for Engineering JIS B 1702-Accuracy for Spur and Helical Gears JIS B 1741-Tooth Contact Marking of Gear
8、s JIS B 7524-Feeler Gauges JIS Z 8601 -Preferred Numbers -,-,- 2 JIS B*3704 78 W 4933b08 0030885 8 W B 1704-1978 v 4. Permissible Values - The permissible values on single pitch error, pitch variation, accumulative pitch error and runout for each grade of the gears shall conform to Attached Tables 1
9、 to 9. Attached Table 1. Permissible Values for Gears of Transverse Module O. 4 mm o r Larger to O. 6 mm or Smaller Unit: p m e a Pitch circle diameter mm Grade )ver 100 to 200 incl. 3 to 6 incl. Over 6 to 12 incl. h e r 12 to 25 incl. h e r 25 to 50 incl, ver 50 ti 100 incl. 5 6 19 28 3 4 14 5 4 5
10、14 7 4 5 15 1 0 4 5 16 14 4 6 18 20 Single pitch error (i) Pitch variation Accumulative pitch error (2) Runout Single pitch error (2) Pitch valiation Accumulative pitch error (i) Runout O 6 8 25 7 7 9 27 15 7 9 29 2 1 8 1 0 31 30 8 1 1 3.4 43 6 8 26 1 0 12 15 47 15 1 1 1 15 46 1 1 13 17 52 31 14 18
11、56 4 5 15 20 60 63 Single pitch error (2) Pitch variation Accumulative pitch error (3 Runout 12 16 50 22 33 e 1 24 48 67 95 Runout 16 25 35 50 7 1 1 O0 145 Runout 37 52 75 105 150 210 Runout 56 79 110 160 230 Runout -,-,- 3 B 1704-1978 Attached Table 2. Permissible Values for Gears of Transverse Mod
12、ule Larger than 0.6 mm to 1 mm o r Smaller Unit: urn Pitch circle diameter rnm Error - Over 6 to 12 incl. 3 to 6 incl. Over 12 to 25 incl. Over 25 to 50 incl. Over 50 to 100 incl. Over 100 to 200 incl. 4 5 14 5 4 5 15 7 4 5 16 10 4 5 17 14 5 6 18 20 5 6 20 28 Single pitch error (2) Pitch variation A
13、ccumulative pitch error ( i ) Runout Single pitch error (i) Pitch variation Accumulative pitch error (2) Runout 6 8 25 7 7 9 26 10 7 9 28 15 7 10 30 21 8 10 32 30 9 11 34 43 12 15 46 11 12 16 48 15 13 16 50 22 13 17 53 31 14 18 57 45 15 20 61 63 Single pitch error (2) Pitch variation Accumulative pi
14、tch error (-k) Runout Runout Runout Runout Runout 16 24 33 48 67 95 25 35 50 71 1 O0 145 37 52 105 150 75 110 210 3 20 56 79 160 230 -,-,- 4 JIS B*l1704 78 W 4933b08 0010887 1 W B 1704-1978 Attached Table 3. Permissible Values for Gears of Transverse Module Larger than 1 mm to 1.6 mm or Smaller Unit
15、: prn Pitch circle diameter mm Grade )ver 6 to 12 incl. rer 12 to 5 incl. Wer 25 to j 0 incl. Over 50 to 100 incl. Error )ver 100 to Over 200 to 200 incl. 400 incl. 5 6 7 7 20 22 28 40 Single pitch error (i-) Pitch variation Accumulative pitch error (2) Runout 4 5 15 7 4 5 16 10 4 6 17 14 8 10 30 21
16、 - 5 6 19 20 O Single pitch error (2) Pitch variation Accumulative pitch error ( 9 Runout 7 9 27 10 7 9 29 15 8 11 32 30 9 10 11 13 35 39 43 60 1 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 12 16 49 15 13 17 52 22 14 18 54 31 14 19 58 45 16 17 20 22 62 68 63 89 2 3 Sin
17、gle pitch error ( i ) Pitch variation s3 29 90 24 23 30 94 33 25 32 98 48 26 34 105 67 28 30 36 39 110 120 95 135 Accumulative pitch error (2) Runout I Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 41 53 165 35 42 55 170 50 44 57 175 71 46 60 1 85 1 O0 49 63 195 145 4 52
18、 75 105 150 210 5 Runout 320. 1 450 79 110 160 230 6 Runout 5 B 1704-1978 5 7 21 28 JIS 8*1704 78 4933608 OBLOi88 3 6 8 23 40 9 12 36 43 1 0 13 4 0 60 21 64 63 28 37 115 95 50 65 200 23 69 89 31 40 120 135 55 69 210 Attached Table 4 . Permissible Values for Gears of Transverse Module Larger than 1.6
19、 mm to 2.5 mm o r Smaller Unit: urn Pitch circle diameter mm Grade Error Over 12 to 25 incl. her 25 to 50 incl. )ver 50 to 1 0 0 incl. 3ver 400 to 800 incl. Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 4 5 1 7 1 0 4 6 18 14 5 6 19 20 6 8 26 5 6 O Single pitch error (2)
20、Pitch variation Accumulative pitch error (2) Runout 7 1 0 30 15 8 1 0 32 21 8 11 34 . 30 11 1 4 44 86 1 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 13 1 7 54 22 14 18 5 6 31 15 19 60 45 I l7 1 6 19 25 7 6 125 2 Single pitch error (2) Pitch variation Accumulative pitch
21、error (2) Runout 24 31 97 33 25 33 1 O0 48 27 35 105 67 33 43 135 190 3 43 56 1 7 0 50 45 58 180 7 1 4 7 61 190 1 O0 Single pitch error ( - I - ) Pitch variation Accumulative pitch error (2) Runout Pitch variation Runout Pitch variation Runout - 5 7- 75 230 290 150 430 4 145 200 5 fi 1 1 0 75 115 10
22、5 120 159 125 210 132 . 300 210 1 1 0 220 160 240 230 3 250 20 I z l 290 640 6 -,-,- 6 J I S B*i1704 78 E 4933608 OOLO889 5 B 17041978 Attached Table 5. Permissible Values for Gears of Transverse Module Larger than 2.5 mm to 4 mm or Smaller Unit: Mm Pitch circle diameter mm Grade Error )ver 400 to 8
23、00 incl. ver 800 ) 1600 icl. 8 10 31 79 )ver 12 to 25 incl. )ver 25 t a 50 incl. )ver 200 to 400 incl. h e r 100 t c 200 incl. her 50 to 100 incl. Single pitch error (2) Pitch variation Accumulative pitch error ( i ) Runout 5 6 18 10 5 6 19 14 5 7 21 20 6 7 22 28 6 8 24 40 7 9 27 56 O Single pitch e
24、rror (2) Pitch variation Accumulative pitch error (2) Runout 8 10 32 15 8 11 33 21 9 12 36 30 10 12 38 43 10 14 42 60 12 15 46 86 13 17 51 120 1 2 14 18 57 22 15 19 59 31 16 20 63 45 17 22 67 63 18 24 72 89 20 26 79 125 22 29 88 180 Single pitch error (2) Pitch variation Accumulative pitch error (2)
25、 Runout 35 45 140 190 38 49 150 270 Single pitch error (2) Pitch variation Accumulative pitch error ( i ) Runout 25 33 1 O0 33 27 34 105 48 28 36 110 67 30 39 120 95 32 41 130 135 3 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 45 59 180 50 50 65 200 1 O0 52 67 210 145 5
26、5 72 2 20 200 135 300 - 59 77 240 290 65 84 260 400 47 61 185 71 120 105 4 5 Pitch variation Runout 115 75 125 150 155 430 170 600 130 210 260 3 20 290 640 310 900 Pitch variation Runout 220 110 240 160 250 230 2 80 450 6 7 Runout 2 50 360 500 720 1 O00 1450 2000 6 8 7 9 7 9 29 8 11 32 16 49 86 21 2
27、7 a4 125 18 54 120 23 30 92 180 36 47 145 190 40 52 160 270 62 81 2 50 290 68 88 270 400 B 1704-1978 Attached Table 6. Permissible Values for Gears of Transverse Module Larger than 4 mm to 6 mm or Smaller Pitch circle diameter mm Grade Error - 3ver 50 tc 100 incl. I h e r 25 to 5 0 incl. 5 7 21 14 6
28、 7 22 20 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout Single pitch error (2) Pitch variation Accumulative pitch error ( i ) Runout Single pitch error ( t J Pitch variation Accumulative pitch error (i) Runout O 24 28 I D 9 12 36 21 10 12 38 30 I l1 10 13 23 72 63 1 16 21
29、 64 31 17 22 67 45 2 Single pitch error ( i ) Pitch variation Accumulative pitch error (2) Runout 28 37 115 48 30 39 120 67 34 44 135 135 31 41 125 95 54 71 2 20 145 e 3 50 65 200 71 52 67 210 1 O0 58 75 230 200 Single pitch error (2) Pitch variation Accumulative pitch error (i) Runout Pitch variati
30、on Runout 4 125 105 130 150 210 135 I 165 430 I 5 I 6 Pitch variation Runout 250 160 260 230 7 Runout 360 - 500 720 1 O00 1450 2000 -,-,- JIS B*iI704 78 M Y933608 OOLO91 3 W 8 B 1704-1978 Attached Table 7. Permissible Values for Gears of Transverse Module Larger than 6 mm to 10 mm or Smaller Unit: U
31、m Pitch circle diameter mm Error Grade h e r 25 tc 50 incl. h e r 50 to 100 incl. her 100 to 200 incl. )ver 200 to 400 incl. h e r 400 to 800 incl. h e r 800 to 1600 incl. Single pitch error (2) Pitch variation Accumulative pitch error ( i - ) Runout 6 8 24 14 6 8 2 5- 20 7 9 27 28 7 9 29 40 8 10 32
32、 56 9 11 35 79 O 10 13 41 21 11 14 43 30 19 24 75 45 - 7 11 15 46 43 12 16 49 60 13 17 54 86 15 19 59 120 Single pitch error (i-) Pitch variation Accumulative pitch error ( i - ) Runout Single pitch error (i-) Pitch variation Accumulative pitch error (2) Runout 1 2 23 30 91 125 18 23 71 31 20 26 79
33、63 25 32 1 O0 180 43 56 170 270 21 27 84 89 Single pitch error (2) Pitch variation Accumulative pitch error (i-) Runout 31 41 125 48 33 42 130 67 34 45 140 95 37 48 145 135 39 51 155 190 3 54 71 2 20 71 56 73 230 1 O0 59 77 240 145 62 81 2 50 200 72 1 O0 290 400 Single pitch error (2) Pitch variatio
34、n Accumulative pitch error (2) Runout Pitch variation Runout 67 87 270 290 175 430 4 135 105 140 150 155 210 165 300 185 600 5 6 270 160 280 230 290 3 20 310 450 320 640 Pitch variation Runout Runout 340 900 2000 - 1450 7 500 720 1 O00 I J I S B*L704 78 4933b08 OOLOB92 5 = 12 37 9 B 1704-1978 i3 40
35、56 15 20 62 86 26 34 105 125 44 58 180 190 79 17 22 67 120 28 37 115 180 48 62 190 270 75 1 O5 300 290 80 110 3 20 400 Attached Table 8. Permissible Values for Gears of Transverse Module Larger than 10 mm to 16 mm o r Smaller Unit: Urn Pitch circle diameter rnm Error Grad O - 1 h e r 100 to 200 incl
36、, h e r 5 0 to 100 incl. 6 1 0 30 20 her 200 to 400 incl. 8 1 0 32 28 9 1 1 34 40 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout Single pitch error ( i ) Pitch variation A ccumulative pitch error (2) Runout 13 17 51 30 13 18 54 43 14 19 57 60 Single pitch error ( i ) Pitc
37、h variation Accumulative pitch error (2) Runout 22 28 87 45 23 30 92 63 24 32 97 89 L Single pitch error (i) Pitch variation Accumulative pitch error (5) Runout 38 49 150 67 39 51 160 95 42 54 165 135 3 Single pitch error (2) Pitch variation Accumulative pitch error (2) Runout 64 84 26 5 1 O0 67 87
38、270 145 70 99 280 200 4 Pitch variation Runout 170 150 175 210 185 300 430 195 I 600 5 Pitch variation Runout 310 230 500 - 320 320 340 450 Runout 720 I O00 1450 2000 3100 43 50 Runout 1100 2200 - 1550 10 J I S B*3704 78 W 4933608 0030893 7 W B 1704-1978 Attached Table 9. Permissible Values for Gear
39、s of Transverse Module Larger than 16 mm to 25 mm o r Smaller Unit: ;Urn Pitch circle diameter rnm Error Grade O h e r 200 to 400 incl. her 400 to 800 incl. h e r 800 to 1600 incl. h e r 100 to 200 incl. 10 13 40 28 10 14 42 40 12 16 48 79 Single pitch error (2) Pitch variation Accumulative pitch er
40、ror (5) Runout Single pitch error (5) Pitch variation Accumulative pitch error (L) Runout 11 15 45 56 i a 24 74 86 16 21 66 43 17 23 69 60 20 26 79 120 1 Single pitch error (i) Pitch variation Accumulative pitch error (2) Runout 28 36 110 63 29 38 115 a9 31 40 125 125 34 44 135 i ao 2 Single pitch e
41、rror (2) Pitch variation Accumulative pitch error (2) Runout 47 61 190 95 49 64 200 135 52 68 210 190 55 72 220 270 3 Single pitch error ( i - ) Pitch variation Accurnulatiye pitch error (2) Runout 79 110 3 20 145 a2 115 330 200 a7 120 3 50 290 92 130 370 400 4 5 Pitch variation Runout 200 210 220 4
42、30 250 600 210 300 ,3 90 450 Pitch variation Runout 370 3 20 400 640 420 900 7 Runout 720 1 O00 1450 2000 8 Runout 1550 2200 43 50 3100 -,-,- J I S B*l1704 78 4933608 003089q 9 11 B 1704-1978 Informative Reference 1. Dimensional Tolerances for Conical Part of Gear Blank Tolerances on outside diamete
43、r of gear blank(l) distance from crown circle to basic back face and face angle are given in Reference Table 1 and Reference Table 2 (see Reference Fig. 1). Note (1) The gear blank means a bevel gear after machine working and before gear cutting. Reference Table 1. Tolerances on Outside Diameter of
44、Gear Blank and on Distance from Crown Circle to Basic Back Face Unit: Um - olerance 2r dis- Ince froiii r o w ircle io asic back ace O - 35 O - 50 O - 60 Dimensional tolerances on outside diameter Pitch circle diameter mm Trans verse iiiover70vrr 25 to Over 50 to !over 100 tolover 200 to Orer 400 to
45、 Over 800 lo I I- 6 incl. 1 12 incl. I 25 inri. , 5 0 incl. 100 incl. 1 200 incI. I 400 incl. 800 incl. 1600 incl. 18 15 17 18 20 22 25 30 34 33 35 38 41 45 51 57 66 76 73 77 83 91 100 110 125 I45 170 - 1 - 1 185 200 220 250 280 330 380 I Unit: v m 1,- 2 6 6 7 7 8 9 10 3, 4 16 17 19 20 22 25 28 5, 6
46、 46 49 53 57 63 71 80 7, 8 - - 150 165 180 200 230 Grades 12 14 33 38 92 105 260 310 1, 2 3J 5, 6 7, 8 13 J I S - B*3704 - 78 4933608 0030896 2 m B 1704-1978 3. Permissible Values for Runout of Blank Side Face For the bevel gear blank with shaft o r for that with hole, permissible values for runout(
47、3) of blank side face are given in Reference Table 4, where a plane perpendicular to axis is used as a mounting basic face of gear cutting. Note (3) The runout of blank side face means the difference of maximum and minimum readings of indicator when the blank is rotated, applying the indicator to a
48、face adjacent to outer periphery of mounting basic face (see Reference Figs. 2 to 4 ) . Reference Table 4. Permissible Values for Runout of Blank Side Face Unit: Vrn -,-,- B 17041978 Reference Fig. 2. Runout for Bevel Gear with Shaft Runout of cone face unout of shaft iunout or side face Reference Fig. 3. Runout for Shaft Base Bevel Gear with Hole Runout of cone face Runout of shaft unout of side face -,-,- - Reference Fig. 4. Runout of Bevel Gear wit