平键
普通平键(摘自GB/T 1095-2003, GB/T 1096-2003)
注:1.在工作图中,轴槽深用d-t或t标注,毂槽深用d+tl标注。(d-t)和(d+t1)尺寸偏差按相应的t和t1的偏差选取,但(d-t)偏差取负号(-)。
2.当键长大于500mm时,其长度应按GB/T321-1980优先数和优先数系的R20系列选取。
3.表中每l00mm长的质量系指B型键。
4. 较高的偏差对于B型键应为h9。
5.当需要时,键允许带起键螺孔,起键螺孔的尺寸按键宽参考表6.3-6中的d0选取。螺孔的位置距键端为b~2b,较长的键可以采用两个对称的起键螺孔。
6. 标记示例:圆头普通平键(A型),b=10mm,h=8mm,l=25mm
键 10×25 GB/T 1096-2003
对于同一尺寸的圆头普通平键(B型)或单圆头普通平键(C型),标记为:
键 B10×25 GB/T 1096-2003
键 C10×25 GB/T 1096-2003
7. 本表的单位是mm。
轴径 d | 键的公称尺寸 |
每100mm 重量/kg |
键槽 | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
b (h8) |
h(h8) (h11) |
c或r | L(h14) | 轴槽深t | 毂槽深t1 | 圆角半径r | |||||
基本尺寸 | 公差 | 基本尺寸 | 公差 | min | max | ||||||
自6~8 | 2 | 2 | 0.16~0.25 | 6~20 | 0.003 | 1.2 | (+0.1,0) | 1 | (+0.1,0) | 0.08 | 0.16 |
>8~10 | 3 | 3 | 0.16~0.25 | 6~36 | 0.007 | 1.8 | (+0.1,0) | 1.4 | (+0.1,0) | 0.08 | 0.16 |
>10~12 | 4 | 4 | 0.16~0.25 | 8~45 | 0.013 | 2.5 | (+0.1,0) | 1.8 | (+0.1,0) | 0.08 | 0.16 |
>12~17 | 5 | 5 | 0.25~0.4 | 10~56 | 0.02 | 3 | (+0.1,0) | 2.3 | (+0.1,0) | 0.16 | 0.25 |
>17~22 | 6 | 6 | 0.25~0.4 | 14~70 | 0.028 | 3.5 | (+0.2,0) | 2.8 | (+0.2,0) | 0.16 | 0.25 |
>22~30 | 8 | 7 | 0.25~0.4 | 18~90 | 0.044 | 4 | (+0.2,0) | 3.3 | (+0.2,0) | 0.16 | 0.25 |
>30~38 | 10 | 8 | 0.4~0.6 | 22~110 | 0.063 | 5 | (+0.2,0) | 3.3 | (+0.2,0) | 0.25 | 0.4 |
>38~44 | 12 | 8 | 0.4~0.6 | 28~140 | 0.075 | 5 | (+0.2,0) | 3.3 | (+0.2,0) | 0.25 | 0.4 |
>44~50 | 14 | 9 | 0.4~0.6 | 36~160 | 0.099 | 5.5 | (+0.2,0) | 3.8 | (+0.2,0) | 0.25 | 0.4 |
>50~58 | 16 | 10 | 0.4~0.6 | 45~180 | 0.126 | 6 | (+0.2,0) | 4.3 | (+0.2,0) | 0.25 | 0.4 |
>58~65 | 18 | 11 | 0.4~0.6 | 50~200 | 0.155 | 7 | (+0.2,0) | 4.4 | (+0.2,0) | 0.25 | 0.4 |
>65~75 | 20 | 12 | 0.6~0.8 | 56~220 | 0.188 | 7.5 | (+0.2,0) | 4.9 | (+0.2,0) | 0.4 | 0.6 |
>75~85 | 22 | 14 | 0.6~0.8 | 63~250 | 0.242 | 9 | (+0.2,0) | 5.4 | (+0.2,0) | 0.4 | 0.6 |
>85~95 | 25 | 14 | 0.6~0.8 | 70~280 | 0.275 | 9 | (+0.2,0) | 5.4 | (+0.2,0) | 0.4 | 0.6 |
>95~110 | 28 | 16 | 0.6~0.8 | 80~320 | 0.352 | 10 | (+0.2,0) | 6.4 | (+0.2,0) | 0.4 | 0.6 |
>110~130 | 32 | 18 | 0.6~0.8 | 90~360 | 0.452 | 11 | (+0.2,0) | 7.4 | (+0.2,0) | 0.4 | 0.6 |
>130~150 | 36 | 20 | 1~1.2 | 100~400 | 0.565 | 12 | (+0.3,0) | 8.4 | (+0.3,0) | 0.7 | 1 |
>150~170 | 40 | 22 | 1~1.2 | 100~400 | 0.691 | 13 | (+0.3,0) | 9.4 | (+0.3,0) | 0.7 | 1 |
>170~200 | 45 | 25 | 1~1.2 | 110~450 | 0.883 | 15 | (+0.3,0) | 10.4 | (+0.3,0) | 0.7 | 1 |
>200~230 | 50 | 28 | 1~1.2 | 125~500 | 1.1 | 17 | (+0.3,0) | 11.4 | (+0.3,0) | 0.7 | 1 |
>230~260 | 56 | 32 | 1.6~2.0 | 140~500 | 1.407 | 20 | (+0.3,0) | 12.4 | (+0.3,0) | 1.2 | 1.6 |
>260~290 | 63 | 32 | 1.6~2.0 | 160~500 | 1.583 | 20 | (+0.3,0) | 12.4 | (+0.3,0) | 1.2 | 1.6 |
>290~330 | 70 | 36 | 1.6~2.0 | 180~500 | 1.978 | 22 | (+0.3,0) | 14.4 | (+0.3,0) | 1.2 | 1.6 |
>330~380 | 80 | 40 | 2.5~3 | 200~500 | 2.512 | 25 | (+0.3,0) | 15.4 | (+0.3,0) | 2 | 2.5 |
>380~440 | 90 | 45 | 2.5~3 | 220~500 | 3.179 | 28 | (+0.3,0) | 17.4 | (+0.3,0) | 2 | 2.5 |
>440~500 | 100 | 50 | 2.5~3 | 250~500 | 3.925 | 31 | (+0.3,0) | 19.5 | (+0.3,0) | 2 | 2.5 |
L系列 | 6,8,10,12,14,16,18,20,22,25,28,32,36,40,45,50,56,63,70,80,90,100,110,125,140,160,180,200,220,250,280,320,360,400,450,500 |
宽度b (键槽尺寸) | |||||||||
---|---|---|---|---|---|---|---|---|---|
基本尺寸 | 极限偏差 | ||||||||
正常连接 | 紧密连接 | 松连接 | |||||||
轴N9 | 毂JS9 | 轴和毂P9 | 轴H9 | 毂D10 | |||||
2,3 | -0.004 | -0.029 | ±0.0125 | -0.006 | -0.031 | +0.025 | 0 | +0.060 | +0.020 |
4,5,6 | 0 | -0.03 | ±0.015 | -0.012 | -0.042 | +0.030 | 0 | +0.078 | +0.030 |
8,10 | 0 | -0.036 | ±0.018 | -0.015 | -0.051 | +0.036 | 0 | +0.098 | +0.040 |
12,14,16,18 | 0 | -0.043 | ±0.0215 | -0.018 | -0.061 | +0.043 | 0 | +0.120 | +0.050 |
20,22,25,28 | 0 | -0.052 | ±0.026 | -0.022 | -0.074 | +0.052 | 0 | +0.149 | +0.065 |
32,36,40,45,50 | 0 | -0.062 | ±0.031 | -0.026 | -0.088 | +0.062 | 0 | +0.180 | +0.080 |
56,63,70,80 | 0 | -0.074 | ±0.037 | -0.032 | -0.106 | +0.074 | 0 | +0.220 | +0.100 |
90,100 | 0 | -0.087 | ±0.0435 | -0.037 | -0.124 | +0.087 | 0 | +0.260 | +0.120 |
薄型平键(摘自GB/T 1566-1979)
注:1.表中每l00mm长的质量系指B型键。
2. 标记示例:圆头普通平键(A型),b=18mm,h=7mm,l=110mm
键 18×7×110 GB/T 1567-1979
对于同一尺寸的圆头普通平键(B型)或单圆头普通平键(C型),标记为:
键B 18×7×110 GB/T 1567-1979
键C 18×7×110 GB/T 1567-1979
3. 本表的单位是mm。
轴径 d | 键的公称尺寸 |
每100mm 重量/kg |
键槽 | |||||||
---|---|---|---|---|---|---|---|---|---|---|
b (h9) |
h (h11) |
c或r | L(h14) | 轴槽深t | 毂槽深t1 | 圆角半径r | ||||
基本尺寸 | 公差 | 基本尺寸 | 公差 | |||||||
自12~17 | 5 | 3 | 0.25~0.4 | 10~56 | 0.012 | 1.8 | (+0.1,0) | 1.4 | (+0.1,0) | 0.16~0.25 |
>17~22 | 6 | 4 | 0.25~0.4 | 14~70 | 0.019 | 2.5 | (+0.1,0) | 1.8 | (+0.1,0) | 0.16~0.25 |
>22~30 | 8 | 5 | 0.25~0.4 | 18~90 | 0.031 | 3 | (+0.1,0) | 2.3 | (+0.1,0) | 0.16~0.25 |
>30~38 | 10 | 6 | 0.4~0.6 | 22~110 | 0.047 | 3.5 | (+0.1,0) | 2.8 | (+0.1,0) | 0.25~0.4 |
>38~44 | 12 | 6 | 0.4~0.6 | 28~140 | 0.0565 | 3.5 | (+0.1,0) | 2.8 | (+0.1,0) | 0.25~0.4 |
>44~50 | 14 | 6 | 0.4~0.6 | 36~160 | 0.066 | 3.5 | (+0.1,0) | 2.8 | (+0.1,0) | 0.25~0.4 |
>50~58 | 16 | 7 | 0.4~0.6 | 45~180 | 0.088 | 4 | (+0.2,0) | 3.3 | (+0.2,0) | 0.25~0.4 |
>58~65 | 18 | 7 | 0.4~0.6 | 50~200 | 0.099 | 4 | (+0.2,0) | 3.3 | (+0.2,0) | 0.25~0.4 |
>65~75 | 20 | 8 | 0.6~0.8 | 56~220 | 0.126 | 5 | (+0.2,0) | 3.3 | (+0.2,0) | 0.4~0.6 |
>75~85 | 22 | 9 | 0.6~0.8 | 63~250 | 0.155 | 5.5 | (+0.2,0) | 3.8 | (+0.2,0) | 0.4~0.6 |
>85~95 | 25 | 9 | 0.6~0.8 | 70~280 | 0.177 | 5.5 | (+0.2,0) | 3.8 | (+0.2,0) | 0.4~0.6 |
>95~110 | 28 | 10 | 0.6~0.8 | 80~320 | 0.22 | 6 | (+0.2,0) | 4.3 | (+0.2,0) | 0.4~0.6 |
>110~130 | 32 | 11 | 0.6~0.8 | 90~360 | 0.276 | 7 | (+0.2,0) | 4.4 | (+0.2,0) | 0.4~0.6 |
>130~150 | 36 | 12 | 1.0~1.2 | 100~400 | 0.339 | 7.5 | (+0.2,0) | 4.9 | (+0.2,0) | 0.7~1.0 |
L系列 | l0,12,14,16,18,20,22,25,28,32,36,40,45,50,56,63,70,80,90,100,110,125,140,160,180,200,220,250,280,320,360,400 |
宽度b (键槽尺寸) | |||||
---|---|---|---|---|---|
基本尺寸 | 极限偏差 | ||||
正常连接 | 紧密连接 | 松连接 | |||
轴N9 | 毂JS9 | 轴和毂P9 | 轴H9 | 毂D10 | |
5,6 | 0,-0.030 | ±0.015 | -0.012,-0.042 | +0.030,0 | +0.078,+0.030 |
8,10 | 0,-0.036 | ±0.018 | -0.015,-0.051 | +0.036,0 | +0.098,+0.040 |
12,14,16,18 | 0,-0.043 | ±0.0125 | -0.018,-0.061 | +0.043,0 | +0.120,+0.050 |
20,22,25,28 | 0,-0.052 | ±0.026 | -0.022,-0.074 | +0.052,0 | +0.149,+0.065 |
32,36 | 0,-0.062 | ±0.031 | -0.026,-0.088 | +0.062,0 | +0.180,+0.080 |
导向平键(摘自GB/T 1097-2003)
注:1.b和h根据轴径d由表6.3-4选取。
2.固定螺钉按GB/T 65-2000《开槽圆柱螺钉》的规定。
3.键槽的尺寸应符合GB/T 1095-2003《键和键槽的剖面尺寸》的规定
4.当键长大于450mm时,其长度按GB/T321-1980"优先数和优先数系"的R20系列选取。
5.每100mm长重量系指B型键。
6. 标记示例:
圆头导向平键(A型),b=16mm,h=10mm,L=100mm;
键 16×100 GB/T1097
方头导向平键(B型),b=16mm,h=10mm,L=100mm;
键 B16×100 GB/T1097
b(h8) | h(h11) | c或r | h1 | d0 | d1 | D | c1 | L0 |
螺钉 (d0×L4) |
L范围 |
每100mm 长质量/kg |
L与L1、L2、L3长度系列 | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
L | L1 | L2 | L3 | ||||||||||||
8 | 7 | 0.25~0.4 | 2.4 | M3 | 3.4 | 6 | 0.3 | 7 | M3×8 | 25~90 | 0.0392 |
25 28 32 36 40 45 50 56 63 70 80 90 100 110 125 140 160 180 200 220 250 280 320 360 400 450 |
13 14 16 18 20 23 26 30 36 40 48 54 60 66 75 80 90 100 110 120 140 160 180 200 220 250 |
12.5 14 16 18 20 22.5 25 28 31.5 35 40 45 50 55 62 70 80 90 100 110 125 140 160 180 200 225 |
6 7 8 9 10 11 12 13 14 15 16 18 20 22 25 30 35 40 45 50 55 60 70 80 90 100 |
10 | 8 | 0.4~0.6 | 2.4 | M3 | 3.4 | 6 | 0.3 | 8 | M3×10 | 25~110 | 0.06 | ||||
12 | 8 | 0.4~0.6 | 3 | M4 | 4.5 | 8.5 | 0.5 | 10 | M4×10 | 28~140 | 0.071 | ||||
14 | 9 | 0.4~0.6 | 3.5 | M5 | 5.5 | 10 | 0.5 | 10 | M5×10 | 36~160 | 0.091 | ||||
16 | 10 | 0.4~0.6 | 3.5 | M5 | 5.5 | 10 | 0.5 | 10 | M5×10 | 45~180 | 0.114 | ||||
18 | 11 | 0.4~0.6 | 4.5 | M6 | 6.6 | 12 | 0.5 | 12 | M6×12 | 50~200 | 0.143 | ||||
20 | 12 | 0.6~0.8 | 4.5 | M6 | 6.6 | 12 | 0.5 | 12 | M6×12 | 56~220 | 0.175 | ||||
22 | 14 | 0.6~0.8 | 4.5 | M6 | 6.6 | 12 | 0.5 | 12 | M6×16 | 63~250 | 0.228 | ||||
25 | 14 | 0.6~0.8 | 6 | M8 | 9 | 15 | 0.5 | 15 | M8×16 | 70~280 | 0.25 | ||||
28 | 16 | 0.6~0.8 | 6 | M8 | 9 | 15 | 0.5 | 15 | M8×16 | 80~320 | 0.324 | ||||
32 | 18 | 0.6~0.8 | 7 | M10 | 11 | 18 | 0.5 | 18 | M10×20 | 90~360 | 0.402 | ||||
36 | 20 | 1.0~1.2 | 8 | M12 | 14 | 22 | 1 | 22 | M12×25 | 100~400 | 0.515 | ||||
40 | 22 | 1.0~1.2 | 8 | M12 | 14 | 22 | 1 | 22 | M12×25 | 100~400 | 0.602 | ||||
45 | 25 | 1.0~1.2 | 8 | M12 | 14 | 22 | 1 | 22 | M12×25 | 110~450 | 0.837 |