Internal Freewheels FSN
for keyway connection on the outer ring
with rollers
Features
Internal Freewheels FSN are roller freewheels without bearing support. The freewheel is built into the customer housing. This makes compact, space-saving fitting solutions possible.
The freewheels FSN are used as:
Backstops
Overrunning Clutches
Indexing Freewheels
Nominal torques up to 3 000 Nm. The faces of both sides of the outer ring are provided with
grooves for torque transmission.Bores up to 80 mm.
| Freewheel Size |
Nominal torque |
Max. speed |
Bore d |
B |
D |
E |
F |
N |
P |
Weight |
| MN |
Inner ring freewheels/ |
Outer ring freewheels/ |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
kg |
| Nm |
overruns min-1 |
overruns min-1 |
|
|
|
|
|
|
|
|
| FSN 8 |
11 |
3 050 |
4 700 |
8 |
13 |
35 |
18,5 |
28 |
4 |
1,3 |
0,1 |
| FSN 12 |
11 |
3 050 |
4 700 |
12 |
13 |
35 |
18,5 |
28 |
4 |
1,3 |
0,1 |
| FSN 15 |
36 |
2 350 |
3 700 |
15* |
18 |
42 |
21,0 |
36 |
5 |
1,7 |
0,1 |
| FSN 17 |
56 |
2 100 |
3 300 |
17* |
19 |
47 |
24,0 |
40 |
5 |
2,0 |
0,2 |
| FSN 20 |
90 |
1 750 |
3 200 |
20* |
21 |
52 |
29,0 |
45 |
6 |
1,5 |
0,2 |
| FSN 25 |
125 |
1 650 |
3 100 |
25* |
24 |
62 |
35,0 |
52 |
8 |
2,0 |
0,4 |
| FSN 30 |
210 |
1 400 |
2 200 |
30* |
27 |
72 |
40,0 |
60 |
10 |
2,5 |
0,6 |
| FSN 35 |
306 |
1 250 |
2 150 |
35* |
31 |
80 |
47,0 |
68 |
12 |
3,5 |
0,8 |
| FSN 40 |
430 |
1 100 |
2 050 |
40* |
33 |
90 |
55,0 |
78 |
12 |
3,5 |
0,9 |
| FSN 45 |
680 |
1 000 |
1 900 |
45* |
36 |
100 |
56,0 |
85 |
14 |
3,5 |
1,3 |
| FSN 50 |
910 |
900 |
1 750 |
50* |
40 |
110 |
60,0 |
92 |
14 |
4,5 |
1,7 |
| FSN 60 |
1 200 |
750 |
1 450 |
60* |
46 |
130 |
75,0 |
110 |
18 |
5,5 |
2,8 |
| FSN 70 |
2 000 |
600 |
1 000 |
70* |
51 |
150 |
85,0 |
125 |
20 |
6,5 |
4,2 |
| FSN 80 |
3 000 |
500 |
900 |
80* |
58 |
170 |
95,0 |
140 |
20 |
7,5 |
6,0 |
Audited Supplier 
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