Metric Size, Steel
Safety Clutch Assemblies
With Friction Bearing
GN 000.4
GN 000.4
RoHS Compliant

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GN 000.4
Specification
Information
Clutch assembly: Steel, nitrided
Bearing surface "teflon" coated
Mating internal serrations hardened with nitrided surface treatment

Shipping
The "teflon" coated surfaces provide minimal friction between bearing surfaces even when lubrication is being neglected. An oil-hole is provided in the clutch mechanism to accept lubrication. In the completely assembled
safety clutch handwheel, there is a lubrication fitting located in the hub of the handwheel to lubricate the safety clutch unit.
For further details, see safety handwheel application guide.

See our technical section for keyway detail DIN 6885/2 and h7 bore tolerance.
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Dimensions in:

millimeters
(inches)

Part
Number
Size
d1*
d2**
(h7 tol.)
d3
d4
max.
d5***
d6****
- .03 mm
I1*****
I1
max.
I2
.1 mm
I3
t
w
min.
1
125
(4.92)
12
(.472)
28
(1.10)
17
(.67)
29
(1.14)
25
(.98)
28.5
(1.12)
28.5
(1.12)
18
(.71)
5
(.20)
26
(1.02)
4
(.16)
140
(5.51)
2
140
(5.51)
14
(.551)
32
(1.26)
21
(.83)
33
(1.30)
29
(1.14)
32.5
(1.28)
32.5
(1.28)
20
(.79)
6
(.24)
30
(1.18)
4
(.16)
160
(6.30)
2
140
(5.51)
16
(.630)
32
(1.26)
21
(.83)
33
(1.30)
29
(1.14)
32.5
(1.28)
32.5
(1.28)
20
(.79)
6
(.24)
30
(1.18)
4
(.16)
160
(6.30)
3
200
(7.87)
18
(.709)
38
(1.50)
26
(1.02)
39
(1.54)
35
(1.38)
36.5
(1.44)
36.5
(1.44)
24
(.94)
6
(.24)
36
(1.42)
4
(.16)
20
(.787)
4
250
(9.84)
22
(.866)
45
(1.77)
30
(1.18)
46
(1.81)
41
(1.61)
47.5
(1.87)
47.5
(1.87)
28
(1.10)
12
(.47)
42
(1.65)
4
(.16)
*Handwheel for series GN 321, GN 322, GN 323
**Bore with Keyway
***Minimum of handwheel hub
****Bore of hub d6
*****Length of handwheel hub needed