Hub keyway depth
| Symbol | t2 |
|---|---|
| Unit | mm |
| Attribute-ID | depth_hub_groove |
| Numeric ID | 3990 |
| Value Type | PMTechValue |
| b | Width of feather key |
| h | Height of feather key |
| t1 | Shaft keyway depth |
| t1tr | Supporting depth of shaft keyway |
| t2 | Hub keyway depth |
| t2tr | Supporting depth of hub keyway |
| r1 | 45° slope or rounding of the feather key |
| r2 | Radius of keyway ground for shaft and hub |
| s1 | 45° slope or rounding of the edge of the shaft keyway |
| s2 | 45° slope or rounding of the edge of the hub keyway |
| A | Feather key |
| B | Hub |
| C | Shaft |
Bevel or rounding of the keyway ground or feather key according to DIN 6885-1:
| Shaft diameter [mm] | 6 - 12 | 12 - 30 | 30 - 65 | 65 - 130 | 130 - 230 | 230 - 330 | 330 - 500 | |
| Bevel or rounding r1 [mm] |
min. | 0.16 | 0.25 | 0.40 | 0.60 | 1.00 | 1.60 | 2.50 |
| max. | 0.25 | 0.40 | 0.60 | 0.80 | 1.20 | 2:00 | 3.00 | |
| Rounding of the keyway ground r2 [mm] |
max. | 0.16 | 0.25 | 0.40 | 0.60 | 1.00 | 1.60 | 2.50 |
| min. | 0.08 | 0.16 | 0.25 | 0.40 | 0.70 | 1.20 | 2.00 | |
Bevel or rounding of the keyway ground and/or feather key according to DIN 6885-2:
| Shaft diameter [mm] | 10 - 12 | 12 - 30 | 30 - 65 | 65 - 130 | 130 - 170 | |
| Bevel or rounding r1 [mm] |
min. | 0.16 | 0:25 | 0.40 | 0.60 | 1.00 |
| max. | 0.25 | 0.40 | 0.60 | 0:80 | 1.20 | |
| Rounding of the keyway ground r2 [mm] |
max. | 0.16 | 0.25 | 0.40 | 0.60 | 1.00 |
| min. | 0.08 | 0.16 | 0.25 | 0.40 | 0.70 | |
Bevel or rounding of the keyway ground and/or feather key according to DIN 6885-3:
| Shaft diameter [mm] | 12 - 17 | 17 - 38 | 38 - 65 | 65 - 95 | 95 - 130 | 130 - 150 | |
| Bevel or rounding r1 [mm] |
r1 | 0.20 | 0.40 | 0.50 |
0.60 |
0.80 | 1.00 |
| Allowable deviation | + 0.1 | + 0.2 | + 0.3 | ||||
| Rounding of the keyway ground r2 [mm] |
r2 | 0.20 | 0.40 | 0.50 | 0.60 | 0.80 | 1.00 |
| Allowable deviation | - 0.1 | - 0.2 | - 0,3 | ||||