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Woodruff Keys

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This page lists our new range of metric Woodruff keys.

Woodruff keys are used to locate the prop drivers of many four and 2 stroke model engines, and are
also widely used to locate pulleys, gears, chain wheels and hubs etc to drive shafts on many forms of rotating machinery.

Please scroll down this page for detailed key and keyway dimensions in accordance with BS4235-2 and ISO 3912

Metric Woodruff Keys
Nominal Key Size
(bxD)

MF Ref

Pack Each You can enter/change the number of items on the order form
       
2x7 MF-WK0207 £1.50

2x10 MF-WK0210 £1.50

2.5x10 MF-WK2510 £1.50

3x13 MF-WK0313 £1.50

3x16 MF-WK0316 £1.50

4x16 MF-WK0416 £1.75

4x19 MF-WK0419 £1.75

5x16 MF-WK0516 £1.75

5x19 MF-WK0519 £1.75

5x22 MF-WK0522 £1.75

6x22 MF-WK0622 £2.00

6x28 MF-WK0628 £2.00

If the size you require is not listed, please e mail us with your requirements.

Metric Woodruff Key and Keyway Dimensions and Tolerances (all dimensions in millimetres)
in accordance with BS 4235-2:1977 and ISO 3912-1977
b  x  h1  x  D Width b Depth Radius R
Nom Tolerance Class Shaft t1 Hub t2
Normal Close
Shaft Hub Shaft & Hub P6 Nom Tol Nom Tol Max min
N9 Js9
1.0 x 1.4 x 4 1       1   0.6   0.16 0.08
1.5 x 2.6 x 7 1.5       2   0.8   0.16 0.08
2.0 x 2.6 x 7 2 -0.004 0.012 -0.006 1.8 0.1 1   0.16 0.08
2.0 x 3.7 x 10 2 -0.029 -0.012 -0.0031 2.9 0 1   0.16 0.08
2.5 x 3.7 x 10 2.5       2.7   1.2   0.16 0.08
3.0 x 5.0 x 13 3       3.8   1.4 0.1 0.16 0.08
3.0 x 6.5 x 16 3       5.3   1.4 0 0.16 0.08
4.0 x 6.5 x 16 4       5 0.2 1.8   0.25 0.16
4.0 x 7.5 x 19 4       6 0 1.8   0.25 0.16
5.0 x 6.5 x 16 5 0 0.015 -0.012 4.5   2.3   0.25 0.16
5.0 x 7.5 x 19 5 -0.03 -0.015 -0.042 5.5   2.3   0.25 0.16
5.0 x 9.0 x 22 5       7   2.3   0.25 0.16
6.0 x 9.0 x 22 6       6.5 0.3 2.8   0.25 0.16
6.0 x 11.0 x 28 6       7.5 0 2.8 0.2 0.25 0.16
8.0 x 11.0 x 28 8 0 0.018 0.015 8   3.3 0 0.4 0.25
10.0 x 13.0 x 32 10 -0.036 -0.018 -0.051 10   3.3   0.4 0.25

 

 

 
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