Description of the planetary gearbox
2.2 Technical features and environmental conditions
Planetary gearboxes for servomotors
Operating Instructions, 09/2020, A5E50494253B AA
19
Technical features of SP+ and NP planetary gearboxes
SP+
NP
In a system with
1FK7
x
x
1FT7
x
-
Permissible temperature during transport
- 15 ... 55 °C
Permissible temperatures during storage
- 15 ... 55 °C
Permissible ambient temperatures in opera-
tion without derating
- 15 ... 40 °C
Maximum permissible operating tempera-
ture of the gearbox
90 °C
Mounting flange
IM B5
IM B14
Vibration severity grade acc. to IEC 60034-
14
A
Type of output shaft
Solid shaft with or without fitted key
Solid shaft with fitted key
2.2.2
Environmental conditions
You can classify the environmental conditions for stationary use at weather-protected
locations according to the standard DIN EN 60721-3-3.
With the exception of environmental influences "Low air temperature", "Low air pressure",
and "Condensation", the motor complies with climate class 3K4.
Table 2- 1
Permissible environmental conditions for the motor based on climate class 3K4
Environmental parameter
Unit
Value
a) Low air temperature
°C
- 15
b) High air temperature
°C
+ 40
c) Low relative humidity
%
5
d) High relative humidity
%
95
e) Low absolute humidity
g/m
3
1
f)
High absolute humidity
g/m
3
29
g) Rate of temperature change
1)
°C/min
0.5
h) Low air pressure
4)
kPa
89
i)
High air pressure
2)
kPa
106
j)
Solar radiation
W/m
2
700
k) Thermal radiation
-
-
l)
Air movement
3)
m/s
1.0
m) Condensation
-
Not permissible
n) Wind-driven precipitation
(rain, snow, hail, etc.)
-
-
o) Water (other than rain)
-
See protection
class
p) Formation of ice
-
-
1)
Averaged over a period of 5 min
2)
Conditions in mines are not considered.
3)
A cooling system based on natural convection can be disturbed by unforeseen air movements.
4)
The limit value of 89 kPa covers applications at altitudes up to 1000 m.
