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GB/T 3478.6-2008 English PDF

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GB/T 3478.6-2008: Straight cylindrical involute splines -- Metric module, side fit -- Part 6: 30-degreepressure angle M and W values
Status: Valid

GB/T 3478.6: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 3478.6-20082029 Add to Cart 13 days Straight cylindrical involute splines -- Metric module, side fit -- Part 6: 30-degreepressure angle M and W values Valid
GB/T 3478.6-1995RFQ ASK 14 days Straight cylindrical involute splines 30 Degree pressure angle-- M and W values Obsolete

Similar standards

GB/T 1243   GB/T 3478.1   GB/T 3478.5   GB/T 3478.4   GB/T 3478.7   GB/T 3478.3   

Basic data

Standard ID: GB/T 3478.6-2008 (GB/T3478.6-2008)
Description (Translated English): Straight cylindrical involute splines -- Metric module, side fit -- Part 6: 30-degreepressure angle M and W values
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J18
Classification of International Standard: 21.120.30
Word Count Estimation: 92,977
Date of Issue: 2008-09-22
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 3478.6-1995
Quoted Standard: GB/T 321; GB/T 3478.1
Regulation (derived from): National Standard Approval Announcement 2008 No.16 (Total No.129)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the pressure angle of 30 �� Straight cylindrical involute splines M value (bar spacing MRi, cross bar from MRe) and W values ??(average external splines normal line length) is calculated and limits the size of the table. This section applies to both GB/T 3478. 1 design and manufacture of 30 �� pressure angle involute splines.

GB/T 3478.6-2008: Straight cylindrical involute splines -- Metric module, side fit -- Part 6: 30-degreepressure angle M and W values


---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Straight cylindrical involute splines.Metric module, side fit.Part 6. 30-degreepressure angle M and W values ICS 21.120.30 J18 National Standards of People's Republic of China Replacing GB/T 3478.6-1995 Straight cylindrical involute splines (Metric series of teeth with the side) Part 6. 30 ° pressure angle M and W values 2008-09-22 released 2009-05-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

GB/T 3478 "cylindrical straight teeth involute spline (metric series of teeth with the side)" is divided into nine parts. - Part 1. General; - Part 2. 30 ° pressure angle dimension table; - Part 3. 37.5 ° pressure angle dimension table; - Part 4. 45 ° pressure angle dimension table; - Part 5. Inspection; - Part 6. 30 ° pressure angle M and W; - Part 7. 37.5 ° Pressure angle M and W; - Part 8. 45 ° pressure angle M and W; Part 9. Measuring rods. This part is part 6 of GB/T 3478. This part refers to ISO 4156-2..2005 "Cylindrical Straight Tooth Spline Spline (Metric Modulus Tooth Side) Part 2. Dimensions" For the 30 ° pressure angle M value and W value, it is for GB/T 3478.6-1995 "Cylindrical Straightener Involute Spline 30 ° Pressure Angle M Value and W Value "of the revision. The main differences between this part and GB/T 3478.6-1995 are as follows. --- standard name from the "cylindrical straight teeth involute spline 30 ° pressure angle M value and W value" to "cylindrical straight involute spline (m Modular tooth side mating) Part 6. 30 ° pressure angle M value and W value "; --- modified the original standard of the error, according to GB/T 1.1 made editorial changes. This part of the national machinery shaft and accessories standardization technical committee put forward and centralized. This part of the drafting unit. in the machine productivity promotion center, Harbin Dongan engine manufacturing company, Shijiazhuang sprocket factory, China second Machinery Group Corporation, Taiyuan Heavy Industry Co., Ltd. This part of the main drafters. Ming Cui new, often treasure India, Xu Wenjiang, Tan Ren Wan, Wang Xiaoling, Deng Gao see. This part of the previous version of the standard to replace the release of the situation. --- GB/T 3478.6-1995. Straight cylindrical involute splines (Metric series of teeth with the side) Part 6. 30 ° pressure angle M and W values

1 Scope

This part of GB/T 3478 specifies the M value of the involute spline of the cylindrical straight teeth with a pressure angle of 30 ° (rod spacing MRi, MRe) and W value (the average length of the spline normal line) and the limit size table. This part is applicable to involute splines with a pressure angle of 30 ° manufactured and manufactured according to GB/T 3478.1.

2 normative reference documents

The terms of this document are the terms of this part by reference to this part of GB/T 3478. Any reference to the date of the text , All subsequent amendments (excluding corrigenda) or revisions do not apply to this part, however, encouragement under this section The parties to the agreement study whether the latest versions of these files are available. For undated references, the latest edition of this document applies section. GB/T 321 priority and priority series GB/T 3478.1 Cylindrical straight teeth involute splines (metric series of teeth with side) Part 1. General (GB/T 3478.1- 2008, ISO 4156-1..2005, MOD)

3 bar measurement of the size of the formula

Note. Allow the corresponding steel ball instead of the bar. 3.1 Calculation formula for measuring the size of internal spline bar Figure 1 D'Ri = Db [tanαci-tan (αci-EmaxD + invαci-inv30 ° )] (1) Where. D'Ri - the calculated diameter of the bar; Αci - the pressure angle on the spline and the rod contact point, expressed in radians, αci = cos-1 Db Dci Dci --- internal spline and measuring rod at the point of contact diameter. Dci = Deemax + Dimin2 Deemax --- the maximum size of the external spline; Dimin --- minimum value of internal spline trails; Emax --- the actual maximum cogging width, the table by the tolerance level of 7 values. Invαci = tanαci-αci; Inv30 ° = 0.0537515. The rod diameter DRi is selected according to R40 in GB/T 321. If D'Ri is not the R40 series value, it should be selected to be the closest to D'Ri The value. Figure 2 Even teeth. MRimax = Dbcosαimax- DRi (2) MRimin = Dbcosαimin- DRi (3) Odd teeth. MRimax = Dbcosαimax × Cos90 ° z-DRi (4) MRimin = Dbcosαimin × Cos90 ° z-DRi (5) Where. MRimax --- the maximum value of the spline bar spacing; MRimin - the minimum value of the spline bar spacing; Αimax --- When E is Emax, the internal pressure on the center circle of the pressure bar. Invαimax = EmaxD + inv30 ° - DRi Db Αimin --- When E is Emin, the internal pressure on the center circle of the internal pressure bar. Invαimin = EminD + inv30 ° - DRi Db DRi - internal spline bar diameter. 3.2 Calculation formula for measuring the size of external spline bar Figure 3 D'Re = Db [tan (αce + invαce + π z - Smin D -inv30 ° ) -tanαce] (6) Where. D'Re - the calculated diameter of the bar; Αce - the pressure angle on the outer spline and the rod contact point, expressed in radians, αce = cos-1 Db Dce Dce --- outside the splines and measuring rods at the point of contact. Dce = Deemax + Dimin2 Smin --- the actual minimum tooth thickness, the table by tolerance level 7 and the basic deviation of h value; Invαce = tanαce-αce. The rod diameter DRe is selected according to R40 in GB/T 321. If D'Re is not the R40 series value, the value closest to D'Re should be selected. Figure 4 Even teeth. MRemin = Dbcosαemin + DRe (7) MRemax = Dbcosαemax + DRe (8) Odd teeth. MRemin = Dbcosαemin × Cos90 ° z + DRe (9) MRemax = Dbcosαemax × Cos90 ° z + DRe (10) Where. MRemin - the minimum value of the spline span of the spline; MRemax - the maximum value of the spline span between the outer splines; Αemin --- When S is Smin, the pressure angle on the center circle of the external spline bar. Invαemin = DReDb + Inv30 ° + SminD - Αemax - when S is Smax, the pressure angle on the center circle of the external spline bar. Invαemax = DReDb + Inv30 ° + SmaxD - DRe - outside the spline with the diameter of the rod. 4 The formula for the average length W of the outer spikes (see Figure 5) Figure 5 Wmax = Wmin + Tcos30 ° (12) Where. Wmin --- the average length of the common line of the minimum; Wmax --- the maximum length of the average length of the common law; K - number of teeth, K = z/6 + 0.5 (take integer); (T + λ) --- total tolerance; T --- processing tolerances; Esv --- the role of tooth thickness on the deviation.

5 bar measurement size

5.1 Measuring the size of the internal spline Modulus of 0.5mm ~ 10mm, the number of teeth 10 to 100, the tolerance level of 4 to 7, the basic deviation of the h of the internal spline measurement with the amount of stick Diameter DRi, maximum rod spacing MRimax and minimum MRimin See Table 1 to Table 14. 5.2 Measuring the size of the outer spline 5.2.1 The amount of the outer spline is 0.5mm ~ 10mm, the number of teeth is 10 ~ 100, the tolerance level is 4 ~ 7, the basic deviation is h Rod diameter DRe, minimum value of span distance MRemin and max MRemax see Table 15 to Table 28. 5.2.2 When the basic deviation of the spline is not h, the span distance shall be calculated according to the formula listed in 3.2.2 or calculated according to the following formula After the difference ΔMRe, the span value in the table is corrected. ΔMRe = Ke · esv (13) 5.3 The rod diameter DRi and DRe listed in Tables 1 to 28 are determined according to 3.1.1 and 3.2.1. If necessary, make a number on the bar Plane to avoid contact with the spline trails. 5.4 When the actual selection of the rod diameter and the diameter listed in the standard are different, the maximum distance between the spline rod spacing MRimax and the minimum MRimin, the minimum value of the spline span distance MRemin and the maximum value MRemax, should be calculated according to the actual rod diameter.

6 km normal length W limit value

6.1 Modulus 0.5mm ~ 10mm, the number of teeth 10 ~ 100, the tolerance level of 4 to 7, the basic deviation of h outside the average length of the normal length of the horn Degrees W limit values, see Table 29 to Table 42. 6.2 When the basic deviation of the external spline tooth thickness is not h, the difference ΔW of the average length of its common line is calculated as follows. ΔW = esv · cos 30 ° = 0.866esv (14) Number of teeth Diameter bar DRi Emin and Emax Rod Distance MRi 4H 5H 6H 7H Min max min max min max min max 0.95 0.95 0.95 0.95 0.95 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 3.537 3.811 4.376 4.865 5.426 5.685 6.245 6.729 7.275 7.755 8.293 8.773 9.306 9.786 10.316 10.797 11.324 11.805 12.330 12.812 13.335 13.818 14.339 14.823 15.343 15.628 16.147 16.633 17.151 17.638 18.155 18.642 19.158 19.646 20.161 20.650 21.164 21.653 22.167 22.656 23.169 23.658 24.171 24.661 25.173 25.663 3.488 3.831 4.426 4.906 5.464 5.730 6.286 6.766 7.311 7.789 8.327 8.805 9.338 9.818 10.347 10.827 11.354 11.835 12.360 12.842 13.364 13.847 14.368 14.852 15.372 15.658 16.177 16.663 17.181 17.667 18.184 18.671 19.187 19.675 20.190 20.678 21.193 21.681 22.195 22.684 23.197 23.686 24.199 24.689 25.201 25.691 3.520 3.770 4.396 4.881 5.441 5.703 6.261 6.744 7.289 7.769 8.307 8.786 9.319 9.799 10.329 10.809 11.336 11.818 12.342 12.825 13.347 13.831 14.352 14.836 15.355 15.641 16.160 16.646 17.164 17.651 18.168 18.655 19.171 19.659 20.174 20.663 21.177 21.666 22.180 22.669 23.182 23.671 24.184 24.674 25.186 25.676 3.418 3.895 4.473 4.948 5.503 5.775 6.328 6.806 7.349 7.826 8.363 8.841 9.374 9.853 10.382 10.862 11.388 11.869 12.394 12.876 13.398 13.881 14.402 14.886 15.405 15.692 16.211 16.697 17.215 17.702 18.219 18.706 19.222 19.709 20.225 20.713 21.227 21.716 22.229 22.718 23.232 23.721 24.234 24.723 25.235 25.725 3.492 3.826 4.423 4.903 5.462 5.727 6.284 6.765 7.309 7.788 8.326 8.805 9.338 9.817 10.347 10.827 11.354 11.835 12.360 12.842 13.365 13.848 14.369 14.853 15.373 15.659 16.178 16.665 17.183 17.669 18.186 18.674 19.190 19.678 20.193 20.681 21.196 21.684 22.198 22.687 23.201 23.690 24.203 24.693 25.205 25.695 3.487 3.968 4.537 5.006 5.559 5.838 6.387 6.863 7.404 7.881 8.417 8.894 9.426 9.904 10.433 10.912 11.439 11.919 12.444 12.926 13.448 13.931 14.452 14.935 15.455 15.744 16.263 16.749 17.266 17.753 18.270 18.757 19.273 19.761 20.276 20.764 21.278 21.767 22.281 22.770 23.283 23.772 24.285 24.775 25.287 25.777 3.438 3.881 4.463 4.938 5.495 5.765 6.319 6.798 7.341 7.819 8.356 8.834 9.367 9.846 10.376 10.856 11.383 11.864 12.388 12.871 13.393 13.876 14.398 14.881 15.401 15.688 16.207 16.694 17.212 17.699 18.216 18.703 19.219 19.707 20.222 20.710 21.225 21.714 22.228 22.717 23.230 23.720 24.233 24.722 25.235 25.725 3.605 4.069 4.631 5.095 5.646 5.933 6.480 6.952 7.492 7.967 8.502 8.978 9.509 9.987 10.516 10.99 11.521 12.001 12.526 13.007 13.530 14.012 14.534 15.017 15.537 15.828 16.347 16.833 17.351 17.837 18.354 18.841 19.357 19.845 20.360 20.848 21.363 21.851 22.365 22.854 23.368 23.857 24.370 24.860 25.372 25.862 Table 1 (continued) The unit is in millimeters Number of teeth Diameter bar DRi Emin and Emax Rod Distance MRi 4H 5H 6H 7H Min max min max min max min max 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 1.06 26.175 26.665 27.176 27.667 28.178 28.669 29.179 29.670 30.181 30.672 31.182 31.673 32.183 32.675 33.184 33.676 34.185 34.677 35.186 35.679 36.187 36.680 37.188 37.681 38.189 38.682 39.190 39.683 40.191 40.684 41.191 41.685 42.192 42.686 43.193 43.687 44.194 44.687 45.194 45.688 46.195 46.689 47.196 47.690 48.196 26.202 26.693 27.204 27.695 28.205 28.696 29.207 29.698 30.208 30.699 31.209 31.701 32.210 32.702 33.211 33.703 34.212 34.705 35.213 35.706 36.214 36.707 37.215 37.708 38.216 38.709 39.217 39.710 40.218 40.711 41.218 41.712 42.219 42.713 43.220 43.713 44.220 44.714 45.221 45.715 46.222 46.716 47.222 47.716 48.223 26.188 26.678 27.190 27.680 28.191 28.682 29.193 29.684 30.194 30.686 31.196 31.687 32.197 32.689 33.198 33.690 34.199 34.692 35.200 35.693 36.201 36.694 37.202 37.695 38.203 38.696 39.204 39.697 40.205 40.698 41.206 41.699 42.207 42.700 43.208 43.701 44.208 44.702 45.209 45.703 46.210 46.704 47.211 47.705 48.211 26.237 26.727 27.239 27.729 28.240 28.731 29.242 29.733 30.243 30.734 31.244 31.736 32.245 32.737 33.247 33.739 34.248 34.740 35.249 35.741 36.250 36.742 37.251 37.744 38.252 38.745 39.253 39.746 40.253 40.747 41.254 41.748 42.255 42.749 43.256 43.750 44.257 44.750 45.257 45.751 46.258 46.752 47.259 47.753 48.259 26.207 26.697 27.209 27.699 28.210 28.701 29.212 29.703 30.214 30.705 31.215 31.707 32.216 32.708 33.218 33.710 34.219 34.711 35.220 35.713 36.221 36.714 37.222 37.715 38.224 38.717 39.225 39.718 40.226 40.719 41.227 41.720 42.227 42.721 43.228 43.722 44.229 44.723 45.230 45.724 46.231 46.725 47.232 47.726 48.233 26.289 26.779 27.291 27.781 28.292 28.783 29.294 29.785 30.295 30.787 31.297 31.788 32.298 32.790 33.299 33.791 34.300 34.793 35.302 35.794 36.303 36.795 37.304 37.797 38.305 38.798 39.306 39.799 40.307 40.800 41.308 41.801 42.309 42.803 43.310 43.804 44.311 44.805 45.312 45.806 46.312 46.807 47.313 47.808 48.314 26.237 26.727 27.239 27.729 28.241 28.732 29.242 29.734 30.244 30.735 31.246 31.737 32.247 32.739 33.249 33.741 34.250 34.742 35.251 35.744 36.253 36.745 37.254 37.747 38.255 38.748 39.256 39.750 40.257 40.751 41.259 41.752 42.260 42.753 43.261 43.755 44.262 44.756 45.263 45.757 46.264 46.758 47.265 47.759 48.266 26.374 26.865 27.376 27.867 28.378 28.869 29.380 29.871 30.381 30.873 31.383 31.875 32.385 32.877 33.386 33.878 34.388 34.880 35.389 35.882 36.391 36.883 37.392 37.885 38.393 38.886 39.395 39.888 40.396 40.889 41.397 41.891 42.398 42.892 43.399 43.893 44.401 44.895 45.402 45.896 46.403 46.897 47.404 47.898 48.405 Number of teeth Diameter bar DRi Emin and Emax Rod Distance MRi 4H 5H 6H 7H Min max min max min max min max 1.40 1.40 1.40 1.40 1.40 1.40 1.40 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 5.241 5.791 6.676 7.394 8.230 8.939 9.759 10.081 10.900 11.621 12.428 13.148 13.948 14.668 15.463 16.184 16.975 17.697 18.484 19.208 19.992 20.717 21.498 22.224 23.004 23.731 24.509 25.237 26.013 26.742 27.517 28.247 29.020 29.751 30.523 31.255 32.026 32.758 33.529 34.262 35.031 35.764 36.533 37.267 38.035 38.770 5.162 5.859 6.728 7.439 8.273 8.980 9.798 10.125 10.943 11.661 12.468 13.187 13.986 14.706 15.500 16.220 17.011 17.732 18.519 19.243 20.026 20.751 21.533 22.258 23.038 23.765 24.542 25.270 26.046 26.775 27.550 28.280 29.053 29.784 30.556 31.287 32.059 32.791 33.561 34.294 35.063 35.797 36.565 37.299 38.067 38.802 5.218 5.816 6.694 7.410 8.245 8.954 9.773 10.097 10.916 11.636 12.443 13.162 13.963 14.682 15.477 16.198 16.989 17.711 18.498 19.222 20.006 20.731 21.512 22.238 23.018 23.745 24.523 25.251 26.027 26.756 27.531 28.261 29.035 29.765 30.538 31.269 32.041 32.773 33.543 34.276 35.046 35.779 36.548 37.282 38.050 38.785 5.174 5.919 6.778 7.485 8.316 9.021 9.838 10.172 10.987 11.705 12.510 13.228 14.027 14.746 15.540 16.260 17.050 17.772 18.558 19.281 20.065 20.790 21.571 22.297 23.076 23.803 24.581 25.309 26.085 26.814 27.589 28.318 29.092 29.822 30.595 31.326 32.097 32.829 33.600 34.333 35.102 35.835 36.604 37.338 38.106 38.841 5.178 5.849 6.720 7.433 8.267 8.974 9.793 10.120 10.938 11.657 12.464 13.183 13.983 14.703 15.497 16.218 17.008 17.731 18.518 19.241 20.025 20.750 21.532 22.258 23.038 23.765 24.543 25.271 26.047 26.776 27.551 28.281 29.055 29.785 30.558 31.289 32.061 32.793 33.564 34.297 35.066 35.800 36.569 37.303 38.071 38.805 5.284 5.998 6.849 7.550 8.379 9.082 9.898 10.239 11.053 11.768 12.573 13.289 14.088 14.806 15.599 16.319 17.109 17.830 18.617 19.339 20.123 20.847 21.629 22.354 23.134 23.861 24.638 25.366 26.142 26.871 27.646 28.376 29.149 29.880 30.652 31.384 32.155 32.887 33.658 34.391 35.160 35.894 36.662 37.396 38.165 38.899 5.130 5.897 6.760 7.469 8.301 9.007 9.825 10.157 10.973 11.691 12.497 13.216 14.015 14.735 15.529 16.250 17.040 17.762 18.549 19.272 20.056 20.781 21.563 22.289 23.069 23.796 24.574 25.302 26.078 26.807 27.582 28.312 29.086 29.817 30.590 31.321 32.093 32.825 33.596 34.329 35.098 35.832 36.601 37.335 38.104 38.838 5.417 6.113 6.956 7.652 8.478 9.178 9.993 10.345 11.156 11.870 12.673 13.388 14.186 14.903 15.696 16.415 17.205 17.925 18.712 19.434 20.218 20.942 21.724 22.449 23.229 23.955 24.733 25.461 26.237 26.966 27.741 28.471 29.244 29.975 30.748 31.479 32.251 32.983 33.754 34.486 35.256 35.990 36.759 37.493 38.261 38.996 Table 2 (continued) Units in millimeters Number of teeth Diameter bar DRi Emin and Emax Rod Distance MRi 4H 5H 6H 7H Min max min max min max min max 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.50 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 1.60 39.537 40.272 41.039 41.774 42.540 43.276 44.042 44.778 45.543 46.280 47.045 47.782 48.546 49.284 49.733 50.472 51.235 51.973 52.737 53.475 54.238 54.977 55.739 56.479 57.241 57.980 58.742 59.482 60.243 60.983 61.744 62.485 63.246 63.986 64.747 65.487 66.248 66.988 67.749 68.490 69.250 69.991 70.751 71.492 72.251 39.569 40.304 41.070 41.806 42.572 43.308 44.073 44.810 45.575 46.311 47.076 47.813 48.577 49.315 49.765 50.503 51.266 52.005 52.768 53.507 54.269 55.008 55.771 56.510 57.272 58.011 58.7......
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