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Keyway Chart
Metric – Rectangular
B.S.4235 : PART 1 : 1972
The following tables show standard
dimensions for keys and their grooves.
Nominal
Shaft Diam Key
Size
Dimensions (mm)
Over
To
(incl.)
A B C D E F R
10 12 4 x 4
3.970
4.000
2.5
2.6
3.985
4.015
1.8
1.9
4.030
3.970
0.16 12 17 5 x 5
4.970
5.000
3.0
3.1
4.985
5.015
2.3
2.4
5.030
4.970
0.25 17 22 6 x 6
5.970
6.000
3.5
3.6
5.985
6.015
2.8
2.9
6.030
5.970
0.25 22 30 8 x 7
7.964
8.000
4.0
4.2
7.982
8.018
3.3
3.5
8.000
7.964
7.000
6.910
0.25 30 38
10 x
8
9.964
10.000
5.0
5.2
9.982
10.018
3.3
3.5
10.000
9.964
8.000
7.910
0.40 38 44
12 x
8
11.957
12.000
5.0
5.2
11.979
12.021
3.3
3.5
12.000
11.957
8.000
7.910
0.40 44 50
14 x
9
13.957
14.000
5.5
5.7
13.979
14.021
3.8
4.0
14.000
13.957
9.000
8.910
0.40 50 58
16 x
10
15.957
16.000
6.0
6.2
15.979
16.021
4.3
4.5
16.000
15.957
10.000
9.910
0.40 58 65
18 x
11
17.957
18.000
7.0
7.2
17.979
18.021
4.4
4.6
18.000
17.957
11.000
10.890
0.40 65 75
20 x
12
19.948
20.000
7.5
7.7
19.974
20.026
4.9
5.1
20.000
19.948
12.000
11.890
0.60 75 85
22 x
14
21.948
22.000
9.0
9.2
21.974
22.026
5.4
5.6
22.000
21.948
14.000
13.890
0.60 85 95
25 x
14
24.948
25.000
9.0
9.2
24.974
25.026
5.4
5.6
25.000
24.948
14.000
13.890
0.60 95 110
28 x
16
27.948
28.000
10.0
10.2
27.974
28.026
6.4
6.6
28.000
27.948
16.000
15.890
0.60 110 130
32 x
18
31.938
32.000
11.0
11.2
31.969
32.031
7.4
7.6
32.000
31.938
18.000
17.890
0.60
Imperial – Rectangular
B.S.46 : PART 1 : 1958
Imperial – Square
B.S.46 : PART 1 : 1958
130 150 36 x 20 35.938 36.000 12.0 12.3 35.969 36.031 8.4 8.7 36.000 35.938 20.000
19.870 1.00
150 170 40 x 22 39.938 40.000 13.0 13.3 39.969 40.031 9.4 9.7 40.000 39.938 22.000
21.870 1.00
170 200 45 x 25 44.938 45.000 15.0 15.3 44.969 45.031 10.4 10.7 45.000 44.938 25.000
24.870 1.00
200 230
50 x 28 49.938 50.000 17.0 17.3 49.969 50.031 11.4 11.7 50.000 49.938 28.000
27.870
1.00
Nominal
Shaft Diam Key
Size Dimensions (Inches)
Over
To
(incl.) A
B
C
D
E
F
R
1
1 1/4
5/16 x 1/4 0.311 0.312 0.146 0.152 0.312 0.313 0.112 0.118 0.314 0.312 0.253
0.250 0.010
1 1/4 1 1/2
3/8 x 1/4 0.374 0.375 0.150 0.156 0.375 0.376 0.108 0.114 0.377 0.375 0.253
0.250
0.010
1 1/
2 1 3/4 7/16
x 5/16 0.437 0.438 0.186 0.192 0.438 0.439 0.135 0.141 0.440 0.438 0.315
0.312
0.020
1 3/4
2 1/2 x 5/16 0.499 0.500 0.190 0.196 0.500 0.501 0.131 0.137 0.502 0.500 0.315
0.312 0.020
2 2 1/2 5/8 x 7/16 0.624 0.625 0.260 0.266 0.625 0.626 0.185 0.191 0.627 0.625 0.441
0.438 0.020
2 1/2
3 3/
4 x 1/2 0.749 0.750 0.299 0.30
5 0.750 0.751 0.209 0.215 0.752 0.750 0.503
0.500 0.020
3 3 1/2 7/8 x 5/8 0.87
4 0.87
5 0.370 0.37
6 0.875 0.876 0.264 0.270 0.87
7 0.875 0.629
0.625 0.062
3 1/2
4 1 x 3/4 0.999 1.000 0.441 0.447 1.000 1.001 0.318 0.324 1.003 1.000 0.754
0.750 0.062
4 5 1 1/4 x 7/8 1.248 1.250 0.518 0.524 1.250 1.252 0.366 0.372 1.253 1.250 0.879
0.875 0.062
5
6
1 1/
2 x 1 1.498 1.500 0.599 0.605 1.500 1.502 0.412 0.418 1.504 1.500 1.006
1.000
0.062
Nominal
Shaft Diam Key
Size Dimensions (Inches)
Over
To
(incl.) A
B
C
D
E
F
R 1/4
1/2
1/8 x 1/8 0.124 0.125 0.072 0.078 0.125 0.126 0.060 0.066 0.127 0.125
0.010
1/2
3/4 3/16
x
3/16
0.187 0.188 0.107 0.113 0.188 0.189 0.088 0.094 0.190
0.188
0.010
3/4 1 1/4 x
1/4
0.249
0.250
0.142
0.148
0.250
0.251
0.115
0.121
0.252
0.250
0.010
1 1 1/4 5/16
x
5/16
0.311
0.312
0.177
0.183
0.312
0.313
0.142
0.148
0.314
0.312
0.010
1 1/4 1 1/
2 3/8 x
3/8
0.374
0.375
0.213
0.219
0.375
0.376
0.169
0.175
0.377
0.375
0.010
1 1/
2 1 3/4 7/16
x
7/16
0.437
0.438
0.248
0.254
0.438
0.439
0.197
0.203
0.440
0.438
0.020
1 3/4
2 1/2 x
1/2
0.499
0.500
0.283
0.289
0.500
0.501
0.224
0.230
0.502
0.500
0.020
2 2 1/2 5/8 x
5/8
0.624
0.625
0.354
0.360
0.625
0.626
0.278
0.284
0.627
0.625
0.020
2 1/2
3 3/
4 x
3/4
0.749
0.750
0.424
0.430
0.750
0.751
0.333
0.339
0.752
0.750
0.020
3 3 1/2 7/8 x
7/8
0.874
0.875
0.495
0.501
0.875
0.876
0.387
0.393
0.877
0.875
0.062
3 1/2
4 1 x 1 0.999
1.000
0.566
0.572
1.000
1.001
0.442
0.448
1.003
1.000
0.062
4 5 1 1/4
x 1
1/4
1.248
1.250
0.707
0.713
1.250
1.252
0.551
0.557
1.253
1.250
0.062
5 6 1 1/2
x 1
1/2
1.498
1.500
0.848
0.854
1.500
1.502
0.661
0.667
1.504
1.500
0.062
表11.1 普通平键(摘自GB/T 1095-2003,GB/T 1096-2003) 普通平键的型式与尺寸键和键槽的剖面尺寸 (GB/T 1096-2003)(GB/T 1095-2003) 标记示例:圆头普通平键(A键),b=10mm,h=8mm,L=25mm 键10×25 GB/T 1096-2003 对于同一尺寸的平头普通平键(B型)或单圆头普通平键(C型),标注为 键B10×25 GB/T 1096-2003 键C10×25 GB/T 1096-2003 (mm) 轴径d 键的公称尺寸 每100mm 重量 /kg 键槽尺寸 轴槽深t毂槽深t1 b 圆角半径r b(h9) h(h11) c或r L(h14) 公差偏差公差偏差min max 自6~8 >8~10 >10~12 2 3 4 2 3 4 0.16~0.25 6~20 6~36 8~45 0.003 0.007 0.013 1.2 1.8 2.5 +0.1 1 1.4 1.8 +0.10 公称 尺寸 同键 0.08 0.16 >12~17 >17~22 >22~30 5 6 8 5 6 7 0.25-0.4 14~56 14~70 18~90 0.02 0.028 0.044 3.0 3.5 4.0 2.3 2.8 3.3 +0.1 0 0.16 0.25 +0.2 +0.2 >30~38 >38~44 >44~50 >50~58 >58~65 10 12 14 16 18 8 8 9 10 11 0.4-0.6 22~100 28~140 36~160 45~180 50~200 0.063 0.075 0.099 0.126 0.155 5.0 5.0 5.5 6.0 7.0 3.3 3.3 3.8 4.3 4.4 0.25 0.4
平键和键槽的标准尺寸规格表轴径键键槽 d b×h 宽度深度 半径 b 偏差 轴毂 较松一般较紧 轴H9毂D10轴N8毂JS9 轴毂 P9 t偏差t1偏差最大最小 6~82×22 +0.02 5 0+0.06 +0.02 -0.00 4 -0.02 9 ±0.012 5 -0.00 6 -0.03 1 1.2 +0. 1 1 +0. 1 0.0 8 0.1 6 >8~103×33 1.8 1.4 >10~124×44 +0.03 0+0.07 8 +0.03 -0.03 ±0.015 -0.01 2 -0.04 2 2.5 1.8 >12~175×55 3.0 2.3 0.1 60.2 5 >17~226×66 3.5 2.8 >22~308×78 +0.03 6 0+0.09 8 +0.04 -0.03 6 ±0.018 -0.01 5 -0.05 1 4.0 +0. 2 3.3 +0. 2 >30~3810×810 5.0 3.3 0.2 50.4 0 >38~4412×812 +0.04 3 0+0.12 +0.05 -0.04 3 ±0.021 5 -0.01 8 -0.06 1 5.0 3.3 >44~5014×914 5.5 3.8>50~5816×1016 6.0 4.3>58~6518×11187.0 4.4>65~7520×1220 +0.05 2 0+0.14 9 +0.06 5 -0.05 2 ±0.026 -0.02 2 -0.07 4 7.5 4.9 0.4 0.6 >75~8522×14229.0 5.4>85~9525×14259.0 5.4> 95~11028×1628 10. 6.4
Welcome Location Transmission Bushes Pulleys Belts Vector Belts Roller Chain & Sprockets Keyway Chart Seals Specification & Size Listings Seal Maker Hallite O-Rings Catalogues Online Hardcopies Contact Us Legal Privacy Statement Keyway Chart Metric – Rectangular B.S.4235 : PART 1 : 1972 The following tables show standard dimensions for keys and their grooves. Nominal Shaft Diam Key Size Dimensions (mm) Over To (incl.) A B C D E F R 10 12 4 x 4 3.970 4.000 2.5 2.6 3.985 4.015 1.8 1.9 4.030 3.970 0.16 12 17 5 x 5 4.970 5.000 3.0 3.1 4.985 5.015 2.3 2.4 5.030 4.970 0.25 17 22 6 x 6 5.970 6.000 3.5 3.6 5.985 6.015 2.8 2.9 6.030 5.970 0.25 22 30 8 x 7 7.964 8.000 4.0 4.2 7.982 8.018 3.3 3.5 8.000 7.964 7.000 6.910 0.25 30 38 10 x 8 9.964 10.000 5.0 5.2 9.982 10.018 3.3 3.5 10.000 9.964 8.000 7.910 0.40 38 44 12 x 8 11.957 12.000 5.0 5.2 11.979 12.021 3.3 3.5 12.000 11.957 8.000 7.910 0.40 44 50 14 x 9 13.957 14.000 5.5 5.7 13.979 14.021 3.8 4.0 14.000 13.957 9.000 8.910 0.40 50 58 16 x 10 15.957 16.000 6.0 6.2 15.979 16.021 4.3 4.5 16.000 15.957 10.000 9.910 0.40 58 65 18 x 11 17.957 18.000 7.0 7.2 17.979 18.021 4.4 4.6 18.000 17.957 11.000 10.890 0.40 65 75 20 x 12 19.948 20.000 7.5 7.7 19.974 20.026 4.9 5.1 20.000 19.948 12.000 11.890 0.60 75 85 22 x 14 21.948 22.000 9.0 9.2 21.974 22.026 5.4 5.6 22.000 21.948 14.000 13.890 0.60 85 95 25 x 14 24.948 25.000 9.0 9.2 24.974 25.026 5.4 5.6 25.000 24.948 14.000 13.890 0.60 95 110 28 x 16 27.948 28.000 10.0 10.2 27.974 28.026 6.4 6.6 28.000 27.948 16.000 15.890 0.60 110 130 32 x 18 31.938 32.000 11.0 11.2 31.969 32.031 7.4 7.6 32.000 31.938 18.000 17.890 0.60
创作编号: GB8878185555334563BT9125XW 创作者:凤呜大王* 平键和键槽的标准尺寸规格表轴径键键槽 d b×h 宽度深度 半径 b 偏差 轴毂 较松一般较紧 轴H9毂D10轴N8毂JS9 轴毂 P9 t偏差t1偏差最大最小 6~82×22 +0.02 5 0+0.06 +0.02 -0.00 4 -0.02 9 ±0.012 5 -0.00 6 -0.03 1 1.2 +0. 1 1 +0. 1 0.0 8 0.1 6 >8~103×33 1.8 1.4> 10~12 4×44 +0.03 0+0.07 8 +0.03 -0.03 ±0.015 -0.01 2 -0.04 2 2.5 1.8 > 12~17 5×55 3.0 2.3 0.1 60.2 5 > 17~22 6×66 3.5 2.8 > 22~30 8×78+0.03 6 0+0.09 8 +0.04 -0.03 6 ±0.018 -0.01 5 -0.05 1 4.0 +0. 2 3.3 +0. 2 > 30~38 10×810 5.0 3.30.2 50.4 0 >12×812+0.04+0.120 ±0.021-0.01 5.0 3.3
1,在工作图中,轴槽槽深用t或(d-t)标注,轮毂槽深按d+t1标注 2,d-t和d+t1的偏差按相应的t和t1的偏差选取,但d-t的偏差应取负值3,除轴外,在保证所需转矩的条件下,允许采用较小剖面的键,但t和t1必要时需从新计算,使键槽与键的接触高度各为h/2 4,表中较松键的链接的偏差适用于导向平键的联接 5,平键的槽长偏差用H14 6,轴槽及轮毂槽宽b对轴及轮毂中心线的对称度的公差按7~9级 (gb1184-80) 7,当平键长度与宽度比,即L/b>8时,键的两侧面在长度方向的平行度应符合下列规定:b《6mm,按7级,b》8~36时,按6级,b》40时,按5级。 8,需要时,键允许起键螺孔。
平键和键槽的标准尺寸规格表 轴径 键 键 槽 d b×h 宽 度 深 度 半径 b 偏 差 轴 毂 较松 一般 较紧 轴H9 毂D10 轴N8 毂JS9 轴毂P9 t 偏差 t1 偏差 最大 最小 6~8 2×2 2 +0.025 0 +0.060 +0.020 -0.004 -0.029 ±0.0125 -0.006 -0.031 1.2 +0.1 0 1 +0.1 0 0.08 0.16 >8~10 3×3 3 1.8 1.4 >10~12 4×4 4 +0.030 0 +0.078 +0.030 0 -0.030 ±0.015 -0.012 -0.042 2.5 1.8 >12~17 5×5 5 3.0 2.3 0.16 0.25 >17~22 6×6 6 3.5 2.8 >22~30 8×7 8 +0.036 0 +0.098 +0.040 0 -0.036 ±0.018 -0.015 -0.051 4.0 +0.2 3.3 +0.2 0 >30~38 10×8 10 5.0 3.3 0.25 0.40 >38~44 12×8 12 +0.043 0 +0.120 +0.050 0 -0.043 ±0.0215 -0.018 -0.061 5.0 3.3 >44~50 14×9 14 5.5 3.8 >50~58 16×10 16 6.0 4.3 >58~65 18×11 18 7.0 4.4 >65~75 20×12 20 +0.052 0 +0.149 +0.065 0 -0.052 ±0.026 -0.022 -0.074 7.5 4.9 0.40 0.60 >75~85 22×14 22 9.0 5.4 >85~95 25×14 25 9.0 5.4 >95~110 28×16 28 10.0 6.4 >110~130 32×18 32 +0.062 0 +0.180 +0.080 0 -0.062 ±0.031 -0.026 -0.088 11.0 7.4 >130~150 36×20 36 12.0 +0.3 0 8.4 +0.3 0.70 1.0 >150~170 40×22 40 13.0 9.4 >170~200 45×25 45 15.0 10.4 >200~230 50×28 50 17.0 11.4