Mean values acc. to DIN 6885 for key chamfers and radii

Symbol -
Unit -
Attribute-ID use_mean_values_of_feather_key_chamfers
Numeric ID 17901
Value Type PMBoolean

The feather key edge must be specified, as DIN6885 provides a range of values.

b Width of feather key
h Height of feather key
t1 Shaft groove depth
t1tr Load-bearing shaft groove depth
t2 Hub groove depth
t2tr Load-bearing hub groove depth
r1 45° bevel or rounding of the feather key
r2 Groove base radius for shaft and hub
s1 45° bevel or rounding of the edge of the shaft groove
s2 45° bevel or rounding of the edge of the hub groove
A Feather key
B Hub
C Shaft
Bevel or rounding of the groove base 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 groove base
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 groove base 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 groove base
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 groove base 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 groove base
r2 [mm]		 r2 0,20 0,40 0,50 0,60 0,80 1,00
Allowable deviation - 0,1 - 0,2 - 0,3