4
Mechanical installation
Torque arms for shaft-mounted gear units
Assembly and Operating Instructions – Gear unit series R..7, F..7, K..7, K..9, S..7, SPIROPLAN
®
W
33
4.4
Torque arms for shaft-mounted gear units
NOTICE
Damage to gear unit due to improper installation.
Damage to the gear unit
• Do not place torque arms under strain during installation.
• Always use bolts of quality 8.8 to fasten torque arms.
4.4.1
Mounting torque arms for parallel-shaft helical gear units
The following figure shows the toque support for parallel-shaft helical gear units.
c
a
ø
b
+0
.5
ø
d
[1]
[2]
[3]
[4]
Δ L
18014398720848395
[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
ΔL
Rubber buffer preload in loose state
Proceed as follows:
1. Use screws [1] and washers [2] according to the following table.
2. Secure the screw connection with a nut [3].
3. 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
21932786/EN – 05/2015
