4
Mechanical installation
Torque arms for shaft-mounted gear units
Assembly and Operating Instructions – Explosion-Proof Gear Units
46
4.8.1
Mounting torque arms for parallel-shaft helical gear units
The following figure shows the torque support for parallel-shaft helical gear units in
loose state.
c
a
ø
d
ø
b
+0
.5
[2]
[1]
[4]
[5]
[3]
36028797230330379
[1] Screw
a
Washer width
[2] Washer
b
Rubber buffer inner diameter
[3] Nuts
c
Rubber buffer length in loose state
[4] Rubber buffer
d
Rubber buffer diameter
[5] Metal side of the rubber buffer
ΔL Preload per rubber buffer in tightened
state
Proceed as follows:
1. Make sure that the metal sides of the rubber buffers lay against the gear unit.
2. Use screws [1] and washers [2] according to the following table.
3. Secure the screw connection with a nut [3].
4. Tighten the screw [1] until the preload "Δ L" of the rubber buffers is reached ac-
cording to the table:
Gear unit
Washer
Rubber buffer
a
mm
d
mm
b
mm
c
mm
Δ L
mm
F..27 /G
5
40
12.5
20
1
F..37 /G
5
40
12.5
20
1
F..47 /G
5
40
12.5
20
1.5
F..57 /G
5
40
12.5
20
1.5
F..67 /G
5
40
12.5
20
1.5
F..77 /G
10
60
21.0
30
1.5
F..87 /G
10
60
21.0
30
1.5
F..97 /G
12
80
25.0
40
2
F..107 /G
12
80
25.0
40
2
F..127 /G
15
100
32.0
60
3
F..157 /G
15
120
32.0
60
3
24804134/EN – 05/2018
