GB/T 3478.4-2008Straight cylindrical involute splines - Metric module, side fit - Part 4: 45°pressure angle dimensions tables (English PDF)
圆柱直齿渐开线花键 （米制模数 齿侧配合） 第4部分：45°压力角尺寸表
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 27, 2008
Implementation date
May 1, 2009
Scope
GB/T 3478.4-2008 is the English-translated version of 圆柱直齿渐开线花键 （米制模数 齿侧配合） 第4部分：45°压力角尺寸表.
GB/T 3478.4-2008 is the Chinese standard "Straight cylindrical involute splines - Metric module, side fit - Part 4: 45°pressure angle dimensions tables".
Its scope clause reads: This part of GB/T 3478 specifies a 45 ° standard pressure angle round tooth root (hereinafter referred to as 45 ° round root) of the cylindrical straight teeth involute spline All the required spline size.
This part applies to GB/T 3478.1-2008 standard in the provisions of the pressure angle of 45 °, modulus of 0.25mm ~ 2.5mm, 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. Its clauses include normative reference documents; size table.
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Document preview — GB/T 3478.4-2008
National Standard of the People's Republic of China
- ICS
- 21.120.30
- Classification
- J 18
- Replacing
- GB/T 3478.4-1995
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
This part of GB/T 3478 specifies a 45 ° standard pressure angle round tooth root (hereinafter referred to as 45 ° round root) of the cylindrical straight teeth involute spline
All the required spline size.
This part applies to GB/T 3478.1-2008 standard in the provisions of the pressure angle of 45 °, modulus of 0.25mm ~ 2.5mm, 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
45 ° round tooth root, the modulus of 0.25mm ~ 2.5mm, the tolerance level of 4,5,6 and 7 of the spline size table, see Table 1 ~ Table 18.
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-lambda;
The actual tooth width is the minimum value Emin = Evmin + lambda;
The minimum tooth thickness Svmin = Smin + lambda;
The actual maximum tooth thickness Smax = Svmax - lambda.
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 + lambda).
Where.
Esv --- on the role of tooth thickness on the deviation, see GB/T 3478.1-2008 Table 23;
(T + lambda) --- total tolerance, see GB/T 3478.1-2008 Table 7 to Table 15.
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 45 ° 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 + lambda)
4H 5H 6H 7H
Number of teeth
2.50
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75
12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
1.7678
1.9445
2.1213
2.2981
2.4749
2.6517
2.8284
3.0052
3.1820
3.3588
3.5355
3.7123
3.8891
4.0659
4.2426
4.4194
4.5962
4.7730
4.9497
5.1265
5.3033
5.4801
5.6569
5.8336
6.0104
6.1872
6.3640
6.5407
6.7175
6.8943
7.0711
7.2478
7.4246
7.6014
7.7782
7.9550
8.1317
8.3085
8.4853
8.6621
8.8388
9.0156
9.1924
9.3692
9.5459
9.7227
2.80
3.05
3.30
3.55
3.80
4.05
4.30
4.55
4.80
5.05
5.30
5.55
5.80
6.05
6.30
6.55
6.80
7.05
7.30
7.55
7.80
8.05
8.30
8.55
8.80
9.05
9.30
9.55
9.80
10.05
10.30
10.55
10.80
11.05
11.30
11.55
11.80
12.05
12.30
12.55
12.80
13.05
13.30
13.55
13.80
14.05
2.75
3.00
3.25
3.50
3.75
4.00
4.25
4.50
4.75
5.00
5.25
5.50
5.75
6.00
6.25
6.50
6.75
7.00
7.25
7.50
7.75
8.00
8.25
8.50
8.75
9.00
9.25
9.50
9.75
10.00
10.25
10.50
10.75
11.00
11.25
11.50
11.75
12.00
12.25
12.50
12.75
13.00
13.25
13.50
13.75
14.00
2.31
2.56
2.81
3.06
3.31
3.56
3.81
4.06
4.31
4.56
4.81
5.06
5.31
5.56
5.81
6.06
6.31
6.55
6.80
7.05
7.30
7.55
7.80
8.05
8.30
8.55
8.80
9.05
9.30
9.55
9.80
10.05
10.30
10.55
10.80
11.05
11.30
11.55
11.80
12.05
12.30
12.55
12.80
13.05
13.30
13.55
0.412
0.412
0.412
0.413
0.413
0.413
0.413
0.413
0.413
0.414
0.414
0.414
0.414
0.414
0.414
0.414
0.414
0.414
0.415
0.415
0.415
0.415
0.415
0.415
0.415
0.415
0.415
0.415
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.416
0.417
0.417
0.417
0.417
0.417
0.424
0.424
0.424
0.425
0.425
0.425
0.425
0.426
0.426
0.426
0.426
0.426
0.427
0.427
0.427
0.427
0.427
0.428
0.428
0.428
0.428
0.428
0.428
0.428
0.429
0.429
0.429
0.429
0.429
0.429
0.429
0.430
0.430
0.430
0.430
0.430
0.430
0.430
0.430
0.431
0.431
0.431
0.431
0.431
0.431
0.431
0.441
0.442
0.442
0.442
0.443
0.443
0.444
0.444
0.444
0.445
0.445
0.445
0.446
0.446
0.446
0.447
0.447
0.447
0.447
0.448
0.448
0.448
0.448
0.449
0.449
0.449
0.449
0.450
0.450
0.450
0.450
0.450
0.451
0.451
0.451
0.451
0.451
0.452
0.452
0.452
0.452
0.452
0.452
0.453
0.453
0.453
0.470
0.471
0.472
0.472
0.473
0.474
0.474
0.475
0.475
0.476
0.476
0.477
0.477
0.478
0.478
0.479
0.479
0.480
0.480
0.481
0.481
0.481
0.482
0.482
0.483
0.483
0.483
0.484
0.484
0.484
0.485
0.485
0.485
0.486
0.486
0.486
0.487
0.487
0.487
0.487
0.488
0.488
0.488
0.489
0.489
0.489
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
DFimin
Trails
Di
Actual maximum tooth width
Emax = Evmin + (T + lambda)
4H 5H 6H 7H
Number of teeth
14.00
14.25
14.50
14.75
15.00
15.25
15.50
15.75
16.00
16.25
16.50
16.75
17.00
17.25
17.50
17.75
18.00
18.25
18.50
18.75
19.00
19.25
19.50
19.75
20.00
20.25
20.50
20.75
21.00
21.25
21.50
21.75
22.00
22.25
22.50
22.75
23.00
23.25
23.50
23.75
24.00
24.25
24.50
24.75
25.00
9.8995
10.0763
10.2530
10.4298
10.6066
10.7834
10.9602
11.1369
11.3137
11.4905
11.6673
11.8440
12.0208
12.1976
12.3744
12.5511
12.7279
12.9047
13.0815
13.2583
13.4350
13.6118
13.7886
13.9654
14.1421
14.3189
14.4957
14.6725
14.8492
15.0260
15.2028
15.3796
15.5563
15.7331
15.9099
16.0867
16.2635
16.4402
16.6170
16.7938
16.9706
17.1473
17.3241
17.5009
17.6777
14.30
14.55
14.80
15.05
15.30
15.55
15.80
16.05
16.30
16.55
16.80
17.05
17.30
17.55
17.80
18.05
18.30
18.55
18.80
19.05
19.30
19.55
19.80
20.05
20.30
20.55
20.80
21.05
21.30
21.55
21.80
22.05
22.30
22.55
22.80
23.05
23.30
23.55
23.80
24.05
24.30
24.55
24.80
25.05
25.30
14.25
14.50
14.75
15.00
15.25
15.50
15.75
16.00
16.25
16.50
16.75
17.00
17.25
17.50
17.75
18.00
18.25
18.50
18.75
19.00
19.25
19.50
19.75
20.00
20.25
20.50
20.75
21.00
21.25
21.50
21.75
22.00
22.25
22.50
22.75
23.00
23.25
23.50
23.75
24.00
24.25
24.50
24.75
25.00
25.25
13.80
14.05
14.30
14.55
14.80
15.05
15.30
15.55
15.80
16.05
16.30
16.55
16.80
17.05
17.30
17.55
17.80
18.05
18.30
18.55
18.80
19.05
19.30
19.55
19.80
20.05
20.30
20.55
20.80
21.05
21.30
21.55
21.80
22.05
22.30
22.55
22.80
23.05
23.30
23.55
23.80
24.05
24.30
24.55
24.80
0.417
0.417
0.417
0.417
0.417
0.417
0.417
0.417
0.417
0.417
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.418
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.419
0.431
0.431
0.432
0.432
0.432
0.432
0.432
0.432
0.432
0.432
0.432
0.432
0.433
0.433
0.433
0.433
0.433
0.433
0.433
0.433
0.433
0.433
0.433
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.434
0.435
0.435
0.435
0.435
0.435
0.435
0.435
0.435
0.435
0.435
0.453
0.453
0.453
0.454
0.454
0.454
0.454
0.454
0.454
0.455
0.455
0.455
0.455
0.455
0.455
0.455
0.456
0.456
0.456
0.456
0.456
0.456
0.456
0.457
0.457
0.457
0.457
0.457
0.457
0.457
0.457
0.458
0.458
0.458
0.458
0.458
0.458
0.458
0.458
0.459
0.459
0.459
0.459
0.459
0.459
0.489
0.490
0.490
0.490
0.490
0.491
0.491
0.491
0.491
0.492
0.492
0.492
0.492
0.493
0.493
0.493
0.493
0.494
0.494
0.494
0.494
0.494
0.495
0.495
0.495
0.495
0.496
0.496
0.496
0.496
0.496
0.497
0.497
0.497
0.497
0.497
0.498
0.498
0.498
0.498
0.498
0.499
0.499
0.499
0.499
Table 2 45 ° 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 + lambda)
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
3.5355
3.8891
4.2426
4.5962
4.9497
5.3033
5.6569
6.0104
6.3640
6.7175
7.0711
7.4246
7.7782
8.1317
8.4853
8.8388
9.1924
9.5459
9.8995
10.2530
10.6066
10.9602
11.3137
11.6673
12.0208
12.3744
12.7279
13.0815
13.4350
13.7886
14.1421
14.4957
14.8492
15.2028
15.5563
15.9099
16.2635
16.6170
16.9706
17.3241
17.6777
18.0312
18.3848
18.7383
19.0919
19.4454
5.60
6.10
6.60
7.10
7.60
8.10
8.60
9.10
9.60
10.10
10.60
11.10
11.60
12.10
12.60
13.10
13.60
14.10
14.60
15.10
15.60
16.10
16.60
17.10
17.60
18.10
18.60
19.10
19.60
20.10
20.60
21.10
21.60
22.10
22.60
23.10
23.60
24.10
24.60
25.10
25.60
26.10
26.60
27.10
27.60
28.10
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
28.00
4.63
5.12
5.62
6.12
6.62
7.12
7.62
8.12
8.61
9.11
9.61
10.11
10.61
11.11
11.61
12.11
12.61
13.11
13.61
14.11
14.61
15.11
15.61
16.11
16.61
17.11
17.61
18.11
18.61
19.11
19.61
20.11
20.61
21.11
21.61
22.11
22.61
23.11
23.61
24.11
24.61
25.11
25.60
26.10
26.60
27.10
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
0.816
0.816
0.816
0.824
0.825
0.825
0.826
0.826
0.826
0.827
0.827
0.827
0.827
0.828
0.828
0.828
0.828
0.829
0.829
0.829
0.829
0.830
0.830
0.830
0.830
0.830
0.831
0.831
0.831
0.831
0.831
0.832
0.832
0.832
0.832
0.832
0.832
0.833
0.833
0.833
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 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 + lambda)
4H 5H 6H 7H
Number of teeth
28.00
28.50
29.00
29.50
30.00
30.50
31.00
31.50
32.00
32.50
33.00
33.50
34.00
34.50
35.00
35.50
36.00
36.50
37.00
37.50
38.00
38.50
39.00
39.50
40.00
40.50
41.00
41.50
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
19.7990
20.1525
20.5061
20.8596
21.2132
21.5668
21.9203
22.2739
22.6274
22.9810
23.3345
23.6881
24.0416
24.3952
24.7487
25.1023
25.4558
25.8094
26.1629
26.5165
26.8701
27.2236
27.5772
27.9307
28.2843
28.6378
28.9914
29.3449
29.6985
30.0520
30.4056
30.7591
31.1127
31.4663
31.8198
32.1734
32.5269
32.8805
33.2340
33.5876
33.9411
34.2947
34.6482
35.0018
35.3553
28.60
29.10
29.60
30.10
30.60
31.10
31.60
32.10
32.60
33.10
33.60
34.10
34.60
35.10
35.60
36.10
36.60
37.10
37.60
38.10
38.60
39.10
39.60
40.10
40.60
41.10
41.60
42.10
42.60
43.10
43.60
44.10
44.60
45.10
45.60
46.10
46.60
47.10
47.60
48.10
48.60
49.10
49.60
50.10
50.60
28.50
29.00
29.50
30.00
30.50
31.00
31.50
32.00
32.50
33.00
33.50
34.00
34.50
35.00
35.50
36.00
36.50
37.00
37.50
38.00
38.50
39.00
39.50
40.00
40.50
41.00
41.50
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
50.50
27.60
28.10
28.60
29.10
29.60
30.10
30.60
31.10
31.60
32.10
32.60
33.10
33.60
34.10
34.60
35.10
35.60
36.10
36.60
37.10
37.60
38.10
38.60
39.10
39.60
40.10
40.60
41.10
41.60
42.10
42.60
43.10
43.60
44.10
44.60
45.10
45.60
46.10
46.60
47.10
47.60
48.10
48.60
49.10
49.60
0.816
0.816
0.816
0.816
0.816
0.816
0.816
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.817
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.818
0.819
0.819
0.819
0.819
0.819
0.819
0.819
0.819
0.819
0.819
0.834
0.834
0.835
0.835
0.835
0.835
0.835
0.835
0.835
0.835
0.836
0.836
0.836
0.836
0.836
0.836
0.836 […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.
Referenced standards
Cited by
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- JB/T 11308-2013Overrunning Clutches for Wheel Loader - Technical Specification
- JB/T 6652-2010Specifications for marine gearbox clutch plates
- GB/T 22436-2008Series of mounting dimensions for wheel hub of motorcycles and mopeds
- GB/T 5104-2008The basic types and dimensions of hobs for involute splines
- GB/T 5105-2004The basic types and dimensions of hobs for 45 Degree pressure angle involute splines
Similar standards
Editions of GB/T 3478.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 3478.4-2008 | Straight cylindrical involute splines - Metric module, side fit - Part 4: 45°pressure angle dimensions tables | current edition | Current |
| GB/T 3478.4-1995 | Straight cylindrical involute splines - Metric module, side fit - Part 4: 45°pressure angle dimensions tables | previous edition | Superseded |
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Related Standards
GB/T 3478.1-2008 — Straight cylindrical involute splines -- Metric module, side fit -- Part 1: Generalities
GB/T 3478.2-2008 — Straight cylindrical involute splines -- Metric module, side fit -- Part 2: 30-degreepressure angle dimensions tables
GB/T 3478.3-2008 — Straight cylindrical involute splines - Metric module, side fit - Part 3: 37.5°pressure angle dimensions tables
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GB/T 3478.4-2008
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