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StandardizationParallel Keys, Taper Keys,and Centre Holes

Dimensions of parallel keys and taper keysParallel keys and taper keys

Diameter Width Height

Depthof key-way inshaft

Depth ofkeyway in

hub

Lengths, seebelow

Parallel keys and taper keysacc. to DIN 6885 Part 1, 6886 and 6887

Side fitting square and rectangular keysd b h t1 t2 l1 l

Side fitting square and rectangular keys

DIN DIN

above to 1) 2) 6885/1 6886/6887 6885/1 6886

2) from to from tomm mm mm mm mm mm mm mm mm mm mm 6 8 10

8 10 12

2 3 4

2 3 4

1.21.82.5

1.0 1.4 1.8

0.5 0.9 1.2

6 6 8

20 36 45

6 8 10

20 36 45

Parallel key and keyway acc. to DIN 6885 Part 1

12 17 22

17 22 30

5 6 8

5 6 7

33.5 4

2.3 2.8 3.3

1.7 2.2 2.4

10 14 18

56 70 90

12 16 20

56 70 90

Square and rectangular taper keys

30 38 44

38 44 50

10 12 14

8 8 9

5 55.5

3.3 3.3 3.8

2.4 2.4 2.9

22 28 36

110140160

25 32 40

110140160

50 58 65

58 65 75

16 18 20

10 11 12

6 77.5

4.3 4.4 4.9

3.4 3.4 3.9

45 50 56

180200220

45 50 56

180200220

Taper and round ended sunk key and 75 85 95

85 95110

22 25 28

14 14 16

9 910

5.4 5.4 6.4

4.4 4.4 5.4

63 70 80

250280320

63 70 80

250280320

Taper and round-ended sunk key andkeyway acc. to DIN 6886

1) The tolerance zone for hub keyway width b for110130150

130150170

32 36 40

18 20 22

111213

7.4 8.4 9.4

6.4 7.1 8.1

90100110

360400400

90100110

360400400

1) The tolerance zone for hub keyway width b forparallel keys with normal fit is ISO JS9 andwith close fit ISO P9. The tolerance zone forshaft keyway width b with normal fit is ISO N9

170200230

200230260

45 50 56

25 28 32

151720

10.411.412.4

9.110.111.1

125140160

400400400

125140

400400

shaft keyway width b with normal fit is ISO N9and with close fit ISO P9.

2) Dimension h of the taper key names thelargest height of the key, and dimension tz the

260290330

290330380

63 70 80

32 36 40

202225

12.414.415.4

11.113.114.1

180200220

400400400

Lengthsnot

deter-

largest height of the key, and dimension tz thelargest depth of the hub keyway. The shaftkeyway and hub keyway dimensionsaccording to DIN 6887 - taper keys with gib

380440

440500

90100

45 50

2831

17.419.5

16.118.1

250280

400400

deter-mined

according to DIN 6887 - ta er keys with gibhead - are equal to those of DIN 6886.

Lengths mmI1 or I

6 8 10 12 14 16 18 20 22 25 28 32 36 40 45 50 56 63 70 8090 100 110 125 140 160 180 200 220 250 280 320 360 400

Dimensions of 60° centre holes in mm Centre holesi h ft d ( t i ) t DIN 332 P t 1Recommended

diametersBore

diameter Form B Minimumdimensions

in shaft ends (centerings) acc. to DIN 332 Part 1

d 2) d1 a 1) b d2 d3 tabove to

610

25

63

10 25

63

100

1.62

2.53.15456.3

5.5 6.6 8.31012.715.620

0.50.60.80.91.21.61.4

3.35 4.25 5.3 6.7 8.510.613.2

5 6.3 81012.51618

3.4 4.3 5.4 6.8 8.610.812.9

Form BDIN 332/1

Recommendeddiameters Form DS

d6 2) d1 d2 d3 d4 d5 t1 t2 t3 t4 t5Kabove to 3) +2 min. +1 ≈ ≈ Keyway

7 10 13

10 13 16

M3M4M5

2.5 3.3 4.2

3.2 4.3 5.3

5.3 6.7 8.1

5.8 7.4 8.8

910

12.5

12 14 17

2.6 3.2 4

1.8 2.1 2.4

0.20.30.3

16 21 24

21 24 30

M6M8M10

5 6.8 8.5

6.4 8.410.5

9.612.214.9

10.513.216.3

161922

21 25 30

5 6

7.5

2.8 3.3 3.8

0.40.40.6

30 38 50 85

38 50 85130

M12M16M20M24

10.21417.521

13172125

18.123

28.434.2

19.825.331.338

28364250

37 45 53 63

9.5121518

4.4 5.2 6.4 8

0.71.01.31.6

Form DS (with thread)DIN 332/2

1) Cutting-off dimension in case of no centering2) Diameter applies to finished workpiece

130225320

225320500

M30*M36*M42*

2631.537

313743

445565

486071

607484

77 93105

172226

111519

1.92.32.7

2) Diameter a lies to finished work iece* Dimensions not acc. to DIN 332 Part 23) Drill diameter for tapping-size holes acc. to

DIN 336 Part 1

2

T100 EN 20.02.2009 15:00 Uhr Seite 30