Feather keys, keyways & deep design
The following table shows feather keys, keyways (deep design) in accordance with DIN 6885 Part 1/Part 2:
|
Edge break (all sides), chamfer or rounding (at manufacturer’s discretion) Rounding of keyway base for shaft and hub |
||
| Type A, round end1) | Type B, square end1) | |
| Type C, round end Size 8*7 and above, with hole 1 for retaining screw above stepped line | Type B, square end Size 8*7 and above, with hole for 1 retaining screw above stepped line |
Hole for retaining screw K-L
Hole for extraction screw M-N |
| Type E, round end, with 2 holes for retaining 8*7 and 10*8 |
Screws below the stepped line Size 10*8 and above additionally with threaded hole for 1 or 2 extraction screws |
|
| Type E, round end, with 2 holes for retaining screws below the stepped line 8*7 and 10*8 |
Type E, round end, with 2 holes for retaining screws below the stepped line Size 12*8 and above additionally with threaded hole for 1 or 2 extraction screws |
|
| Type G, square end, with chamfer and hole for 1 retaining screw | Type H, square end, with chamfer and hole for 2 retaining screws | |
| Type J, square end, with chamfer and hole 1 for adapter sleeve | Hole for adapter sleeve | |
Designation of feather key, type A, width b=12mm, height=8mm, length l=56mm: feather key A12*8*56 DIN 6885.
Material: Part 1 for h25mm and Part 2 for all sizes E295, Part 1 for h25mm E335.
- If feather keys of type A and B are to be supplied with holes for extraction screws (S), this must be specified, at the time of ordering. In this case, the designation is: feather key AS12*8*56cm DIN 6885.
For feather keys (high design) in accordance with DIN 6885 Part 1/Part 21), the following values apply.
| Feather key, cross-section (wedge steel to DIN 6880) |
Width b Height h |
4 4 |
5 5 |
6 6 |
8 7 |
10 8 |
12 8 |
14 9 |
16 10 |
18 11 |
20 12 |
22 14 |
25 14 |
| Shaft diameter d1 |
over incl. |
10 12 |
12 17 |
17 22 |
22 30 |
30 38 |
38 44 |
44 50 |
50 58 |
58 65 |
65 75 |
75 85 |
85 95 |
| Shaft b, tight fit P9 | Loose fit N9 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 |
| Shaft t1 with back clearance | Loose fit JS9 | 2,5 | 3 | 3,5 | 4 | 5 | 5 | 5,5 | 6 | 7 | 7,5 |
9
|
9 |
| Hub, b tight fit P9 | 4 | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 25 | |
| Hub t2in the case of back clearance2) |
1,8 1,2 |
2,3 1,7 |
2,8 2,2 |
3,3 2,4 |
3,3 2,4 |
3,3 2,4 |
3,8 2,9 |
4,3 3,4 |
4,4 3,4 |
4,9 3,9 |
5,4 4,4 |
5,4 4,4 |
|
|
a d2=d1+3) |
– 4 |
– 5 |
– 6 |
3 8 |
3 8 |
3 8 |
3,5 9 |
4 11 |
4,5 11 |
5 12 |
5,5 14 |
5,5 14 |
|
|
Feather key r1 Keyway r2 |
min./max. max./min. |
0,16/0,25 0,16/0,08 |
0,25/0,40 0,25/0,16
|
0,25/0,40 0,25/0,16 |
0,25/0,40 0,25/0,16 |
0,40/0,60 0,40/0,25 |
0,40/0,60 0,40/0,25 |
0,40/0,60 0,40/0,25 |
0,40/0,60 0,40/0,25 |
0,40/0,60 |
0,6/0,8 0,6/,04 |
0,6/0,8 0,6/,04 |
0,6/0,8 0,6/,04 |
|
Shaft t1 Hub t2 d2=d1+1) |
3 1,1 3 |
3,8 1,3 3,5 |
4,4 1,7 4 |
5,4 1,7 4,5 |
6 2,1 5,5 |
6 2,1 6 |
6,5 2,6 7 |
7,5 2,6 8 |
8 3,1 8,5 |
8 4,1 11 |
10 4,1 12 |
10 4,1 12 |
|
| l4) |
over incl. |
(10) 8 45 |
(12) 10 56 |
(16) 14 70 |
(20) 18 90 |
(25) 22 110 |
(32) 28 140 |
(40) 36 160 |
– 45 180 |
– 50 200 |
– 56 220 |
– 63 250 |
– 70 2805) |
| Stepping of l | 6 8 10 12 14 16 18 20 22 25 28 32 36 40 45 50 56 63 70 80 90 100 110 125 140 160 180 200 220 250 2805) | ||||||||||||
|
Feather key
|
d3 d4 d5 d6 H 12 |
– – – – |
– – – – |
– – – – |
3,4 6 M3 4 |
3,4 6 M3 4 |
4,5 8 M4 5 |
5,5 10 M5 6 |
5,5 10 M5 6 |
6,6 11 M6 8 |
6,6 11 M6 8 |
6,6 11 M6 8 |
9 15 M8 10 |
|
t3 t4 |
– – |
– – |
– – |
2,4 4 |
2,4 4 |
3,2 5 |
4,1 6 |
4,1 6 |
4,8 7 |
4,8 8 |
4,8 8 |
6 10 |
|
| Shaft |
d1 d6 |
– – |
– – |
– – |
M3 4,5 |
M3 4,5 |
M4 5,5 |
4,5 6,5 |
M5 6,5 |
M6 9 |
M6 9 |
M6 9 |
M8 11 |
|
t5 t6 t7 |
– – – |
– – – |
– – – |
4 7 M3*8 |
5 8 M3*10 |
6 10 M4*10 |
6 10 M5*10 |
6 10 M5*10 |
7 12 M6*12 |
6 11 M6*12 |
8 13 M6*18 |
9 15 M8*16 |
|
| Screw to DIN 84, DIN 7984 or DIN 6912, adapter sleeve to DIN 1481 | – | – | – | – | 4*8 | 4*8 | 5*10 | 6*12 | 6*12 | 8*16 | 8*16 | 8*16 | 10*20 |
- For part 2 (type A, C and E only), the dimensions t1, t2 and d2 in the part enclosed by broad lines apply; all other dimensions such as feather keys are in accordance with Part 1.
- t2in the case of independence is intended for exceptional cases in which they feather key is reworked (adapted).
- d2 is the smallest diameter (inside dimension) of parts which can be slid concentrically over the feather key.
- The values stated within () are the smallest lengths according to Part 2 where these do not coincide with Part 1.
- Only up to 250 for feather keys in accordance with Part 2.