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Keys and keyway Dimensions

KeyWay Dimensions

Nominal Dia
D		 Key KeyWay
b x h width x thck Width B Depth Radius R
Nom Tolerance Class Shaft T1 Hub T2
Over Incl Free Normal Close/Int - - - -
Shaft
H9		 Hub
D10		 Shaft
N9		 Hub
Js9		 Shaft/Hub
P9		 Nom Tol Nom Tol Max min
6 8 2x2 2 +.025 0 +0.06 +0.02 -0.004 +0.012 -0.006 1.2 +0.1 0 1.0 +0.1 0 0.16 0.08
8 10 3x3 3 -0.029 -0.012 -0.031 1.8 1.4 0.16 0.08
10 12 4x4 4 +0.03
0		 +0.078
+0.080		 0
-0.030		 +0.015
+0.015		 -0.012
-0.042		 2.5 1.8 0.16 0.008
12 17 5x5 5 3.0 2.3 0.25 0.16
17 22 6x6 6 3.5 2.8 0.25 0.16
22 30 8x7 8 +0.036
0		 +0.095
+0.040		 0
-0.036		 +0.018
-0.018		 +0.015
-0.051		 4.0 +0.2
0		 3.3 +0.2
0		 0.25 0.16
30 38 10x8 10 5.0 3.3 0.40 0.25
38 44 12x8 12 +.043 0 +0.012
+0.050		 0
0.043		 +0.021
-0.021		 -0.018
-0.061		 5.0 +0.2
0		 3.3 +0.2
0		 0.40 0.25
44 50 14x9 14 5.5 3.8 0.40 0.25
50 58 16x10 16 6.0 4.3 0.40 0.25
58 65 18x11 18 7.0 4,4 0.40 0.25
65 75 20x12 20 +0.052
0		 +0.149
+0.065		 0
-0.052		 +0.026
-0.026		 -0.022
-0.074		 7.5 4.9 0.60 0.40
75 85 22x14 22 9.0 5.4 0.60 0.40
85 95 25x14 25 9.0 5.4 0.60 0.40
95 110 28x16 28 10.0 6.4 0.60 0.40
110 130 32x18 32 +0.062
0		 +0.18
+0.080		 0
+0.062		 +0.031
-0.031		 -0.025
-0.088		 11.0 7.4 0.6 0.4
130 150 36x20 36 12.0 +0.3
0		 8.4 +0.3
0		 1.0 0.7
150 170 40x22 40 13.0 9.4 1.0 0.7
170 200 45x25 45 13.0 10.4 1.0 0.7

Key Dimensions

Width B Thickness H Chamfer S Range Of Lengths
Nom Tol(h9) Nom Tol(h9) Min Max From Inc
2 0
-0.025		 2 0
-0.025		 0.16 0.25 6 20
3 3 0.16 0.25 6 36
4 0
-0.030		 4 0
-0.030		 0.16 0.25 8 45
5 5 0.25 0.40 10 56
6 6 0.25 0.40 14 70
8 0
-0.036		 7 Tol (h11) ........ 0
-0.090		 0.25 0.40 18 90
10 8 0.40 0.60 22 110
12 0
-0.043		 8 0.40 0.60 28 140
14 9 0.40 0.60 36 160
16 10 0.40 0.60 45 180
18 11 0
-0.110		 0.40 0.60 50 200
20 0
-0.052		 12 0.60 0.80 56 220
22 14 0.60 0.80 63 250
25 14 0.60 0.80 70 280
28 16 0.60 0.80 80 320
32 0
-0.062		 18 0.60 0.80 90 360
36 20 0
-0.130		 1.00 1.20 100 400
40 22 1.00 1.20 - -
45 25 1.00 1.20 - -
50 28 1.00 1.20 - -
56 0
-0.074		 32 0
-0.160		 1.60 2.00 - -
63 32 1.60 2.00 - -
70 36 1.60 2.00 - -
80 40 2.50 3.00 - -
90 0
-0.087		 45 2.50 3.00 - -
100 50 2.50 3.00 - -

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Last Updated 29/10/2000