GB/T 3478.3-2008 English PDF

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GB/T 3478.3-2008: Straight cylindrical involute splines -- Metric module, side fit -- Part 3: 37.5-degreepressure angle dimensions tables
Status: Valid

GB/T 3478.3: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3478.3-2008	1349	Add to Cart	10 days	Straight cylindrical involute splines -- Metric module, side fit -- Part 3: 37.5-degreepressure angle dimensions tables	Valid
GB/T 3478.3-1995	RFQ	ASK	11 days	Straight cylindrical involute splines--37. 5 Degree pressure angle dimensions tables	Obsolete

Similar standards

GB/T 1243   GB/T 3478.1   GB/T 3478.5   GB/T 3478.6   GB/T 3478.7   GB/T 3478.4   

Basic data

Standard ID: GB/T 3478.3-2008 (GB/T3478.3-2008)
Description (Translated English): Straight cylindrical involute splines -- Metric module, side fit -- Part 3: 37.5-degreepressure angle dimensions tables
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J18
Classification of International Standard: 21.120.30
Word Count Estimation: 61,698
Date of Issue: 2008-09-22
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 3478.3-1995
Quoted Standard: GB/T 1800.1; GB/T 3478.1-2008
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 standard 37. 5 �� pressure angle round root (hereinafter referred to as 37. 5��Circle tooth root) column straight circle involute spline spline all the required size. This section applies to the standards set forth in 3478 1-2008 GB/T pressure angle of 37. 5 ��, modulus of 0. 5 mm ~ 10 mm, tooth side with involute splines.

GB/T 3478.3-2008: Straight cylindrical involute splines -- Metric module, side fit -- Part 3: 37.5-degreepressure angle dimensions tables

---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 3. 37.5-degreepressure angle dimensions tables ICS 21.120.30 J18 National Standards of People's Republic of China Replace GB/T 3478.3-1995 Straight cylindrical involute splines (Metric series of teeth with the side) Part 3. 37.5 ° pressure angle dimension table 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 3 of GB/T 3478. This part refers to ISO 4156-2..2005 "Cylindrical Straight Spike Spline Spline (Metric Modulus Tooth Side) Part 2. Dimensions" Capacity is GB/T 3478.3-1995 "cylindrical straight teeth involute spline 37.5 ° pressure angle size table" revision. With GB/T 3478.3- 1995 compared to the main differences as follows. --- standard name from the "cylindrical straight teeth involute spline 37.5 ° pressure angle size table" to "cylindrical straight involute spline (metric Modular tooth side mating) Part 3. 37.5 ° pressure angle dimension table "; --- 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 3478.3-1995. Straight cylindrical involute splines (Metric series of teeth with the side) Part 3. 37.5 ° pressure angle dimension table

1 Scope

This part of GB/T 3478 specifies a cylindrical straightening of 37.5 ° standard pressure angle round tooth root (hereinafter referred to as 37.5 ° round root) All splines required for spline size. This part applies to GB/T 3478.1-2008 standard in the pressure angle of 37.5 °, modulus of 0.5mm ~ 10mm, the tooth side With the involute spline. The size of this part of the table is according to GB/T 3478.1-2008 Table 3 formula and the tooth side with H/h, and the use of basic test methods Compiled.

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 1800.1 Geometrical product specifications (GPS) Limits and mating - Part 1. Basis for tolerances, deviations and mates GB/T 3478.1-2008 Cylindrical straight teeth involute splines (metric series of teeth with side) Part 1. General (ISO 4156-1. 2005, MOD)

3 size table

3.1 37.5 ° round tooth root, the modulus of 0.5mm ~ 10mm, the tolerance level of 4,5,6 and 7 of the spline size table, see Table 1 ~ Table 28. 3.2 The limit deviation of the inner spline diameter Di and the tolerance of the outer spline diameter Dee See GB/T 3478.1-2008. 3.3 Internal spline diameter Dei and outer spline diameter Die tolerance, from GB/T 1800.1 standard tolerances IT12, IT13 or IT14 Select. 3.4 When the inner and outer splines are machined, the radius of the tooth root is changed. This part gives the minimum radius of curvature of the tooth root arc. GB/T 3478.1-2008 Table 26. 3.5 When the selected test method is not the basic method, its role in the maximum cogging width, the actual maximum tooth width, the minimum tooth thickness and The actual maximum tooth thickness is calculated as follows. The maximum tooth width of the role of Evmax = Emax-λ; The actual tooth width is the minimum value Emin = Evmin + λ; The minimum tooth thickness Svmin = Smin + λ; The actual maximum tooth thickness Smax = Svmax - λ. 3.6 When the spline tooth side with the category is not H/h, the size of the size of the spline in the size table should be calculated according to the following formula. The maximum tooth thickness Svmax = S + esv; Actual tooth thickness minimum value Smin = Svmax- (T + λ). Where. Esv --- on the role of tooth thickness on the deviation, see GB/T 3478.1-2008 Table 23; (T + λ) --- total tolerance, see GB/T 3478.1-2008 Table 8 ~ Table 21. See page 24 for details on the large diameter of the large splines and trails. 3.7 Size table Chinese and foreign splines involute start circle diameter maximum value DFemax value is based on the principle of the principle of tooth-type tool derivation of the formula Calculated. When the spline tooth side with the category is not H/h, DFemax can be calculated according to the formula in Table 3 of GB/T 3478.1-2008. Table 1 37.5 ° spline Number of teeth Graded circle diameter Base circle diameter Db Large diameter Dei Round tooth root Gradually open end Cut diameter DFimin Trails Di Actual maximum tooth width Emax = Evmin + (T + λ) 4H 5H 6H 7H Number of teeth 5.00 5.50 6.00 6.50 7.00 7.50 8.00 8.50 9.00 9.50 10.00 10.50 11.00 11.50 12.00 12.50 13.00 13.50 14.00 14.50 15.00 15.50 16.00 16.50 17.00 17.50 18.00 18.50 19.00 19.50 20.00 20.50 21.00 21.50 22.00 22.50 23.00 23.50 24.00 24.50 25.00 25.50 26.00 26.50 27.00 27.50 3.9668 4.3634 4.7601 5.1568 5.5535 5.9502 6.3468 6.7435 7.1402 7.5369 7.9335 8.3302 8.7269 9.1236 9.5202 9.9169 10.3136 10.7103 11.1069 11.5036 11.9003 12.2970 12.6937 13.0903 13.4870 13.8837 14.2804 14.6770 15.0737 15.4704 15.8671 16.2637 16.6604 17.0571 17.4538 17.8505 18.2471 18.6438 19.0405 19.4372 19.8338 20.2305 20.6272 21.0239 21.4205 21.8172 5.70 6.20 6.70 7.20 7.70 8.20 8.70 9.20 9.70 10.20 10.70 11.20 11.70 12.20 12.70 13.20 13.70 14.20 14.70 15.20 15.70 16.20 16.70 17.20 17.70 18.20 18.70 19.20 19.70 20.20 20.70 21.20 21.70 22.20 22.70 23.20 23.70 24.20 24.70 25.20 25.70 26.20 26.70 27.20 27.70 28.20 5.55 6.05 6.55 7.05 7.55 8.05 8.55 9.05 9.55 10.05 10.55 11.05 11.55 12.05 12.55 13.05 13.55 14.05 14.55 15.05 15.55 16.05 16.55 17.05 17.55 18.05 18.55 19.05 19.55 20.05 20.55 21.05 21.55 22.05 22.55 23.05 23.55 24.05 24.55 25.05 25.55 26.05 26.55 27.05 27.55 28.05 4.61 5.10 5.60 6.09 6.59 7.09 7.58 8.08 8.58 9.08 9.58 10.08 10.57 11.07 11.57 12.07 12.57 13.07 13.57 14.07 14.57 15.07 15.57 16.07 16.57 17.07 17.56 18.06 18.56 19.06 19.56 20.06 20.56 21.06 21.56 22.06 22.56 23.06 23.56 24.06 24.56 25.06 25.56 26.06 26.56 27.06 0.810 0.810 0.810 0.810 0.811 0.811 0.811 0.811 0.811 0.812 0.812 0.812 0.812 0.812 0.812 0.813 0.813 0.813 0.813 0.813 0.813 0.813 0.814 0.814 0.814 0.814 0.814 0.814 0.814 0.814 0.814 0.815 0.815 0.815 0.815 0.815 0.815 0.815 0.815 0.815 0.815 0.816 0.816 0.833 0.833 0.833 0.833 0.834 0.834 0.834 0.834 0.834 0.846 0.847 0.848 0.848 0.849 0.849 0.850 0.850 0.851 0.851 0.851 0.852 0.852 0.853 0.853 0.853 0.854 0.854 0.854 0.855 0.855 0.855 0.856 0.856 0.856 0.857 0.857 0.857 0.857 0.858 0.858 0.858 0.859 0.859 0.859 0.859 0.860 0.860 0.860 0.860 0.860 0.861 0.861 0.861 0.861 0.862 0.883 0.884 0.885 0.886 0.887 0.887 0.888 0.889 0.890 0.890 0.891 0.892 0.892 0.893 0.894 0.894 0.895 0.895 0.896 0.896 0.897 0.897 0.898 0.898 0.899 0.899 0.900 0.900 0.901 0.901 0.902 0.902 0.902 0.903 0.903 0.904 0.904 0.904 0.905 0.905 0.906 0.906 0.906 0.907 0.907 0.907 Table 1 (continued) The unit is in millimeters Number of teeth Graded circle diameter Base circle diameter Db Large diameter Dei Round tooth root Gradually open end Cut diameter 42.00 42.50 43.00 43.50 44.00 44.50 45.00 45.50 46.00 46.50 47.00 47.50 48.00 48.50 49.00 49.50 50.00 22.2139 22.6106 23.0072 23.4039 23.8006 24.1973 24.5940 24.9906 25.3873 25.7840 26.1807 26.5773 26.9740 27.3707 27.7674 28.1640 28.5607 28.9574 29.3541 29.7508 30.1474 30.5441 30.9408 47.70 48.20 48.70 49.20 49.70 50.20 50.70 28.55 29.05 29.55 30.05 30.55 31.05 31.55 32.05 32.55 33.05 33.55 34.05 34.55 45.05 45.55 46.05 46.55 47.05 47.55 48.05 48.55 49.05 49.55 50.05 50.55 27.56 28.06 28.56 29.06 29.56 30.06 30.56 31.06 0.839 0.839 0.839 0.839 0.839 0.839 0.839 0.862 0.862 0.862 0.862 0.863 0.863 0.863 0.863 0.863 0.864 0.864 0.864 0.864 0.868 0.868 0.868 0.868 0.869 0.869 0.869 0.869 0.869 0.869 0.869 0.870 0.908 0.908 0.908 0.909 0.909 0.909 0.910 0.910 31.50 32.25 33.00 33.75 34.50 35.25 36.00 36.75 37.50 38.25 39.00 39.75 40.50 41.25 5.9502 6.5452 7.1402 7.7352 8.3302 8.9252 9.5202 10.1153 10.7103 11.3053 11.9003 12.4953 13.0903 13.6853 14.2804 14.8754 15.4704 16.0654 16.6604 17.2554 17.8505 18.4455 19.0405 19.6355 20.2305 20.8255 21.4205 22.0156 22.6106 23.2056 23.8006 24.3956 24.9906 25.5856 26.1807 26.7757 27.3707 27.9657 28.5607 29.1557 29.7508 30.3458 30.9408 31.5358 32.1308 32.7258 8.55 9.30 10.05 10.80 11.55 12.30 13.05 13.80 14.55 15.30 16.05 16.80 17.55 18.30 19.05 19.80 20.55 21.30 22.05 22.80 23.55 24.30 25.05 25.80 26.55 27.30 28.05 28.80 29.55 30.30 31.05 31.80 32.55 33.30 34.05 34.80 35.55 36.30 37.05 37.80 38.55 39.30 40.05 40.80 41.55 42.30 8.32 9.07 9.82 10.57 11.32 12.07 12.82 13.57 14.32 15.07 15.82 16.57 17.32 18.07 18.82 19.57 20.32 21.07 21.82 22.57 23.32 24.07 24.82 25.57 26.32 27.07 27.82 28.57 29.32 30.07 30.82 31.57 32.32 33.07 33.82 34.57 35.32 36.07 36.82 37.57 38.32 39.07 39.82 40.57 41.32 42.07 6.91 7.65 8.40 9.14 9.88 10.63 11.38 12.12 12.87 13.62 14.37 15.11 15.86 16.61 17.36 18.11 18.86 19.60 20.35 21.10 21.85 22.60 23.35 24.10 24.85 25.60 26.35 27.10 27.85 28.60 29.34 30.09 30.84 31.59 32.34 33.09 33.84 34.59 35.34 36.09 36.84 37.59 38.34 39.09 39.84 40.59 1.206 1.206 1.207 1.207 1.207 1.207 1.208 1.208 1.208 1.208 1.208 1.209 1.209 1.209 1.209 1.209 1.209 1.210 1.210 1.210 1.210 1.210 1.210 1.211 1.211 1.211 1.211 1.211 1.211 1.211 1.211 1.212 1.212 1.212 1.212 1.212 1.212 1.212 1.212 1.212 1.213 1.213 1.213 1.213 1.213 1.213 1.223 1.223 1.224 1.224 1.225 1.225 1.225 1.226 1.226 1.226 1.227 1.227 1.227 1.227 1.228 1.228 1.228 1.229 1.229 1.229 1.229 1.229 1.230 1.230 1.230 1.230 1.231 1.231 1.231 1.231 1.231 1.232 1.232 1.232 1.232 1.232 1.233 1.233 1.233 1.233 1.233 1.233 1.234 1.234 1.234 1.234 1.248 1.249 1.249 1.250 1.251 1.251 1.252 1.252 1.253 1.253 1.254 1.254 1.255 1.255 1.256 1.256 1.256 1.257 1.257 1.258 1.258 1.258 1.259 1.259 1.259 1.260 1.260 1.260 1.261 1.261 1.261 1.262 1.262 1.262 1.263 1.263 1.263 1.263 1.264 1.264 1.264 1.265 1.265 1.265 1.265 1.266 1.290 1.291 1.292 1.293 1.294 1.295 1.296 1.297 1.298 1.298 1.299 1.300 1.301 1.301 1.302 1.303 1.304 1.304 1.305 1.305 1.306 1.307 1.307 1.308 1.308 1.309 1.309 1.310 1.310 1.311 1.311 1.312 1.312 1.313 1.313 1.314 1.314 1.315 1.315 1.316 1.316 1.316 1.317 1.317 1.318 1.318 Table 2 (continued) Units in millimeters Number of teeth Graded circle diameter Base circle diameter Db Large diameter Dei Round tooth root Gradually open end Cut diameter DFimin Trails Di Actual maximum tooth width Emax = Evmin + (T + λ) 4H 5H 6H 7H Number of teeth 42.00 42.75 43.50 44.25 45.00 45.75 46.50 47.25 48.00 48.75 49.50 50.25 51.00 51.75 52.50 53.25 54.00 54.75 55.50 56.25 57.00 57.75 58.50 59.25 60.00 60.75 61.50 62.25 63.00 63.75 64.50 65.25 66.00 66.75 67.50 68.25 69.00 69.75 70.50 71.25 72.00 72.75 73.50 74.25 75.00 33.3208 33.9159 34.5109 35.1059 35.7009 36.2959 36.8909 37.4859 38.0810 38.6760 39.2710 39.8660 40.4610 41.0560 41.6511 42.2461 42.8411 43.4361 44.0311 44.6261 45.2211 45.8162 46.4112 47.0062 47.6012 48.1962 48.7912 49.3862 49.9813 50.5763 51.1713 51.7663 52.3613 52.9563 53.5514 54.1464 54.7414 55.3364 55.9314 56.5264 57.1214 57.7165 58.3115 58.9065 59.5015 43.05 43.80 44.55 45.30 46.05 46.80 47.55 48.30 49.05 49.80 50.55 51.30 52.05 52.80 53.55 54.30 55.05 55.80 56.55 57.30 58.05 58.80 59.55 60.30 61.05 61.80 62.55 63.30 64.05 64.80 65.55 66.30 67.05 67.80 68.55 69.30 70.05 70.80 71.55 72.30 73.05 73.80 74.55 75.30 76.05 42.82 43.57 44.32 45.07 45.82 46.57 47.32 48.07 48.82 49.57 50.32 51.07 51.82 52.57 53.32 54.07 54.82 55.57 56.32 57.07 57.82 58.57 59.32 60.07 60.82 61.57 62.32 63.07 63.82 64.57 65.32 66.07 66.82 67.57 68.32 69.07 69.82 70.57 71.32 72.07 72.82 73.57 74.32 75.07 75.82 41.34 42.09 42.84 43.59 44.34 45.09 45.84 46.59 47.34 48.09 48.84 49.59 50.34 51.09 51.84 52.59 53.34 54.09 54.84 55.59 56.34 57.09 57.84 58.58 59.33 60.08 60.83 61.58 62.33 63.08 63.83 64.58 65.33 66.08 66.83 67.58 68.33 69.08 69.83 70.58 71.33 72.08 72.83 73.58 74.33 1.213 1.213 1.213 1.213 1.214 1.214 1.214 1.214 1.214 1.214 1.214 1.214 1.214 1.214 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.215 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.216 1.217 1.217 1.217 1.217 1.217 1.234 1.234 1.235 1.235 1.235 1.235 1.235 1.235 1.235 1.236 1.236 1.236 1.236 1.236 1.236 1.236 1.237 ......

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