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Standard Metric Keys Keyways for Metric Bores with One Key

Engineering Hardware Design Data
ISO Hardware Specifications Table

Metric Keyway

Standard Metric Keys & Keyways for Metric Bores with One Key

 

Metric Key & Keyway Dimensions Per ISO/R773 – P9 Width Tolerance H
Shaft Diameter
Key Size
Keyway Width
Keyway Depth
Keyway Radius
"D"
Nominal
Hub "W"
Hub ""
"R"
Over
Thru
Width "W"
Height "H"
Nominal
Min
Max
Min
Max
Min
Max
6
8
2
2
2
-.031
-.006
1.0
1.1
0.08
0.16
8
10
3
3
3
-.031
-.006
1.4
1.5
0.08
0.16
10
12
4
4
4
-.042
-.012
1.8
1.9
0.08
0.16
12
17
5
5
5
-.042
-.012
2.3
2.4
0.16
0.25
17
22
6
6
6
-.042
-.012
2.8
2.9
0.16
0.25
22
30
8
7
8
-.051
-.015
3.3
3.5
0.16
0.25
30
38
10
8
10
-.051
-.015
3.3
3.5
0.25
0.40
38
44
12
8
12
-.061
-.018
3.3
3.5
0.25
0.40
44
50
14
9
14
-.061
-.018
3.8
4.0
0.25
0.40
50
58
16
10
16
-.061
-.018
4.3
4.5
0.25
0.40
58
65
18
11
18
-.061
-.018
4.4
4.6
0.25
0.40
65
75
20
12
20
-.074
-.022
4.9
5.1
0.40
0.60
75
85
22
14
22
-.074
-.022
5.4
5.6
0.40
0.60
85
95
25
14
25
-.074
-.022
5.4
5.6
0.40
0.60
95
110
28
16
28
-.074
-.022
6.4
6.6
0.40
0.60
110
130
32
18
32
-.088
-.026
7.4
7.6
0.40
0.60
130
150
36
20
36
-.088
-.026
8.4
8.7
0.70
1.00
150
170
40
22
40
-.088
-.026
9.4
9.7
0.70
1.00
170
200
45
25
45
-.088
-.026
10.4
10.7
0.70
1.00
200
230
50
28
50
-.088
-.026
11.4
11.7
0.70
1.00
230
260
56
32
56
-.106
-.032
12.4
12.7
1.20
1.60
260
290
63
32
63
-.106
-.032
12.4
12.7
1.20
1.60
290
330
70
36
70
-.106
-.032
14.4
14.7
1.20
1.60
330
380
80
40
80
-.106
-.032
15.4
15.7
2.00
2.50
380
440
90
45
90
-.124
-.037
17.4
17.7
2.00
2.50
440
500
100
50
100
-.124
-.037
19.5
19.8
2.00
2.50

 

 

Metric Key & Keyway Dimensions Per ISO/R773 – D10 Width Tolerance
Shaft Diameter
Key Size
Keyway Width
Keyway Depth
Keyway Radius
"D"
Nominal
Hub "W"
Hub "T"
"R"
Over
Thru
Width "W"
Height "H"
Nominal
Min
Max
Min
Max
Min
Max
6
8
2
2
2
+.020
+.060
1.0
1.1
0.08
0.16
8
10
3
3
3
+.020
+.060
1.4
1.5
0.08
0.16
10
12
4
4
4
+.030
+.078
1.8
1.9
0.08
0.16
12
17
5
5
5
+.030
+.078
2.3
2.4
0.16
0.25
17
22
6
6
6
+.030
+.078
2.8
2.9
0.16
0.25
22
30
8
7
8
+.040
+.098
3.3
3.5
0.16
0.25
30
38
10
8
10
+.040
+.098
3.3
3.5
0.25
0.40
38
44
12
8
12
+.050
+.120
3.3
3.5
0.25
0.40
44
50
14
9
14
+.050
+.120
3.8
4.0
0.25
0.40
50
58
16
10
16
+.050
+.120
4.3
4.5
0.25
0.40
58
65
18
11
18
+.050
+.120
4.4
4.6
0.25
0.40
65
75
20
12
20
+.065
+.149
4.9
5.1
0.40
0.60
75
85
22
14
22
+.065
+.149
5.4
5.6
0.40
0.60
85
95
25
14
25
+.065
+.149
5.4
5.6
0.40
0.60
95
110
28
16
28
+.065
+.149
6.4
6.6
0.40
0.60
110
130
32
18
32
+.080
+.180
7.4
7.6
0.40
0.60
130
150
36
20
36
+.080
+.180
8.4
8.7
0.70
1.00
150
170
40
22
40
+.080
+.180
9.4
9.7
0.70
1.00
170
200
45
25
45
+.080
+.180
10.4
10.7
0.70
1.00
200
230
50
28
50
+.080
+.180
11.4
11.7
0.70
1.00
230
260
56
32
56
+.100
+.220
12.4
12.7
1.20
1.60
260
290
63
32
63
+.100
+.220
12.4
12.7
1.20
1.60
290
330
70
36
70
+.100
+.220
14.4
14.7
1.20
1.60
330
380
80
40
80
+.100
+.220
15.4
15.7
2.00
2.50
380
440
90
45
90
+.120
+.260
17.4
17.7
2.00
2.50
440
500
100
50
100
+.120
+.260
19.5
19.8
2.00
2.50

Where:

T = D + T2

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