Steel, for Safety Handwheels, with Needle Bearings
Catalogue
|
No.
|
d1 ø Handwheel
GN 321 GN 322 GN 323 |
d2 H7 Bore with keyway
|
d3
|
d4 max.
|
d5 Minium Ø of handwheel hub d5
|
d6 -0.05 Bore Ø of handwheel hub H7
|
l1
|
l2 ±0.1 Length of handwheel hub
|
l3
|
t
|
w min.
|
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|
|
|
|
|
|
|
|
|
GN 000.5-1-K12
|
1
|
125 140
|
K 12
|
29
|
17
|
29
|
25
|
42
|
18 19
|
12
|
26
|
4
|
GN 000.5-2-K14
|
2
|
140 160
|
K 14
|
33
|
21
|
33
|
29
|
48
|
19 20
|
14
|
30
|
4
|
GN 000.5-3-K18
|
3
|
200
|
K 18
|
39
|
26
|
39
|
35
|
50
|
24
|
13
|
36
|
4
|
GN 000.5-4-K22
|
4
|
250
|
K 22
|
46
|
30
|
46
|
41
|
54
|
28
|
13
|
42
|
4
|
Steel
Hardened
Bearing surfaces ground
The use of needle bearings and the hardened bearing surfaces make the clutch engagement extremely easy. This is also assisted by the finer teeth of the clutch and the increased length of the coupling attachment.
Its suitability for high shaft speeds, especially when these are maintained for long periods, is a further advantage of the needle bearing.
An oil-hole is provided which in the completely assembled safety handwheel connects with the handwheel hub.
The coupling attachment is axially secured in the handwheel hub by a clamp nut.