Siemens Simotics - Technical features and environmental conditions

Description of the planetary gearbox
2.2 Technical features and environmental conditions
Planetary gearboxes for servomotors
18 Operating Instructions, 09/2020, A5E50494253B AA
2.2 Technical features and environmental conditions
2.2.1 Technical features
This chapter describes the assignment and features of the individual planetary gearboxes.
Principle design of the geared motor
1
Output shaft (customer mounting flange)
2
Gearbox housing (gearing area)
3
Gearbox flange
4
Motor
Figure 2-1 Geared motor design
Technical features of NRB, NRK and NLC planetary gearboxes
NRB
NRK
NLC
In a system with
1FK2
x
x
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
Max. permissible gearbox operating tem-
perature
90 °C
Mounting flange (acc. to IEC 60034-7)
IM B14
IM B14
IM B5
Type of output shaft
Solid shaft with or without fitted key