Woodruff Keys, Dimensions and Application

Dimensions in mm - source DIN 6888
Publication date: 08/1956
key width b h9	1	1.5	2	2	2.5	3	3	3	4	4	4
key heigth h12	1.4	2.6	2.6	3.7	3.7	3.7	5	6.5	5	6.5	7.5
for shaft diameters d1 form A
for shaft diameters d1 formB
d2
l ≈
≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3)

Dimensions in mm - source DIN 6888  Publication date: 08/1956
key width b h9	5	5	5	6	6	6	6	8	8	8	10	10	10
key heigth h h12	6.5	7.5	9	7.5	9	10	11	9	11	13	11	13	16
for shaft diameters d1 form A	12÷17	12÷17	-	17÷22	17÷22	17÷22	-	22÷30	22÷30	-	30÷38	30÷38	-
for shaft diameters d1 form B
d2
l ≈
≈ weigth in kg x1000 pcs, (ρ=7,85 kg/dm3)

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH,Burggrafenstraße 6, 10787 Berlin, Germany.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Woodruff keys and keyways

The norm applys to cylindrical shafts and shafts ends, and gives the relationship which should be observed between the diameter of shaft and the section of key. Steel with a tensile strength of 590 N/mm is defined as the material to be used.

Dimensions in mm - source ISO 3912 Publication date: 06/1977
b nom max	1	1.5	2	2	2.5	3	3	4	4
b min	0.975	1.475	1.975	1.975	2.475	2.975	2.975	3.97	3.97
d2 min	3.88	6.85	6.85	9.85	9.85	12.82	15.82	15.82	18.79
d 2 max
h min
h max)

Dimensions in mm - source ISO 3912 Publication date: 06/1977
b nom max	5	5	5	6	6	8	10
b min	4.97	4.97	4.97	5.97	5.97	7.964	9.964
d2 min	15.82	18.79	21.79	21.79	24.79	27.79	31.75
d2 max
h min
h max

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from ISO - International Organization for Standardization, Chemin de Blandonnet 8 CP 401 1214 Vernier, Geneva, Switzerland.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Woodruff keys. Dimensions and application.

Example and leaflet with relation to the field of application of Woodruff key (nominal dimensions, tolerances, diameter, chamfer, length) and keyway (length, depth, round-off radius). Material: steel with r greater than or equal to 590 n/mm2 in the finished state.

Dimensions in mm - source UNI 6606
Publication date: 02/1980
key width b h9	1.5	2	2	2	2.5	3	3	3	3	4	4	4	4
key heigth h h12	2.6	2.6	3.7	5	3.7	3.7	5	6.5	7.5	5	6.5	7.5	9
shaft diameters d1
d2
l ≈

Dimensions in mm - source UNI 6606  Publication date: 02/1980
key width b h9	5	5	5	5	6	6	6	6	8	8	8	10	10	10	10
key heigth h h12	6.5	7.5	9	10	9	10	11	13	11	13	15	13	15	16	17
shaft diameters d1	12÷17	12÷17	12÷17	12÷17	17÷22	17÷22	17÷22	17÷22	22÷30	22÷30	22÷30	30÷38	30÷38	30÷38	30÷38
d2
l ≈

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from UNI - Ente italiano di normazione Via Sannio 2 - 20137 Milano, Italy.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.

Woodruff keys and keyway

This norm provides details such as the relationship to be observed between the diameter of the shaft and the section of the key for both torque transmission and positional applications.

Dimensions in mm - source BS 4235-2 Publication date: 10/1977
b nom max	1	1.5	2	2	2.5	3	3	4	4
b min	0.975	1.475	1.975	1.975	2.475	2.975	2.975	3.97	3.97
d2 min	3.88	6.85	6.85	9.85	9.85	12.82	15.82	15.82	18.79
d 2 max
h min
h max)

Dimensions in mm - source BS 4235-2 Publication date: 10/1977
b nom max	5	5	5	6	6	8	10
b min	4.97	4.97	4.97	5.97	5.97	7.964	9.964
d2 min	15.82	18.79	21.79	21.79	24.79	27.79	31.75
d2 max
h min
h max

The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from BSI -The British Standards Institution, 389 Chiswick High Road, London, W4 4AL, UK.
WARNING - The datasheets provided by this site (fasten.it) are only advisory in support of the commercial activity and their use by anyone is entirely voluntary. Reliance on their contents for any purpose by anyone is at his/her sole risk and Fasten.it s.r.l./www.fasten.it is not responsible for any loss, claim or damage arising there from.