Festo DRRD-Serie Instrucciones De Utilizacion página 21

DRRD-16 ... 63
3. Feed the appropriate lines through the hollow
drive shaft, if necessary, or use the variant
with energy throughfeed.
The shaft opening for wiring has the following
dimensions ( Tab. 2).
4. When mounting the moving mass, make sure
that the following specifications are observed:
– installation without tilting
– permissible radial force Fy
– permissible axial force Fx
– permissible mass moment of inertia
– a structure that is as rotationally symmet-
rical as possible.
The mass moment of inertia of the moving mass should have been calculated. Lever arms,
cantilevers and masses should be considered in the calculation (maximum permissible values
Catalogue specifications, www.festo.com/catalogue).
Note
In the event of a high demand for a rotationally symmetrical structure:
• Use the middle centring hole as well as one of the 4 existing centring holes.
5. Secure the effective load to the drive flange at
the mounting interface aA by using at least
two screws positioned opposite one another
and centring sleeves.
The tightening torque is summarised in the
following table (
Size
Shaft opening 4
Centring sleeve ZBH for middle centring
hole
Screw for thread at aA
Centring sleeve ZBH
Tightening torque
Tab. 2
Festo – DRRD-16 ... 63-Z6 – 1306a English
Tab. 2).
Fig. 3
Fig. 4
16 20 25
[mm] 8 8 10.5 10.5 10.5 21
[mm] 12 12 15
M4 M4 M5
[mm] 7 7 9
[Nm] 3 3 6
4
32 35 40 50
21
15 25 25 25
M6 M6 M6 M8
9 9 9 12
10 10 10 20
aA
63
21
25
M10
15
40
21