Parallel key DIN 6885 form A round-ended A 4x4x20 Steel bright
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r1 chamfering (all sides), bevelled or rounding of manufacturer's choice
r2 rounding of groove bottom for shaft and hub
* similar to DIN 6885
r2 rounding of groove bottom for shaft and hub
* similar to DIN 6885
Article no.
10 37 0404 0200/001
Identifier
Parallel key DIN 6885 form A round-ended, high-sized version
Size
A 4x4x20
Material group
Steel
Surface
bright
Width b
4
Height h
4
for shaft Ø d1 above
10
for shaft Ø d1 up to
12
Shaft groove width b
4
Shaft groove depth t1 [with back clearance]
2,5
Shaft groove depth t1 [or oversize Tolerance]
+0,1
Hub groove width b
4
Hub groove depth t2 [with back clearance]
1,8
Hub groove depth t2 [with oversize]
1,2
Hub groove depth t2 Tolerance
+0,1
d2 Minimum dimension d1+
4
Bevelled/Rounded r1 min.
0,16
Bevelled/Rounded r1 max.
0,25
Rounding of groove bottom r2 max.
0,16
Rounding of groove bottom r2 min.
0,08
Length l
20
Length l Tolerance key
-0,2 -0,3
Length l Tolerance groove
+0,2 +0,3
Material
Steel St 50-1 K or St 60-2 K or Thermal treatment steel 1.0503 (C45+C) according to DIN 6880 and DIN EN 10277 or Thermal treatment steel 1.1192 (C45EC)
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