GN...N DC motors - Baumüller Reparaturwerk

DC Drives up to 500 kW
Noise level
(For internally cooled motors)
L [dBA]
90
85
80
75
70
65
60
The internally ventilated motors do not exceed the limit values stipulated in EN 60034 -9
A sound absorber reduces the noise level by 3 dBA.
Vibration severity
GNA 225
GNA 160
GNA 100
GNA 280
700 1000 1500 2000 3000 4000 5000
Speed [RPM]
Vibration class Size
DIN EN 60034 -14 Speed
[RPM]
100-132 160-225
Veff [mm/s]
250-280
N 600 - 1800 1,8 2,8 4,5
(Normal) 1800 - 3600 1.8 2.8 4.5
3600 - 6000 2.8 4.5 -
6000 - 7500 4.5 - -
R* 600 - 1800 0.71 1.12 1.8
(Reduced) 1800 - 3600 1.12 1.8 2.8
3600 - 6000 1.8 2.8 -
6000 - 7500 2.8 - -
S* 600 - 1800 0.45 0.71 1.12
(Special) 1800 - 3600 0.71 1.12 1.8
3600 - 6000 1.12 1.8 -
6000 - 7500 1.8 - -
* R and S can only be executed with ball bearing.
To take into consideration the lifetimes of the brushes and the commutator as well as the bearing service life, you must limit the
vibration values at the motor's place of installation that come from the driven machine and from the environment. The following
maximum values (which are based on VDI 2056) are permissible. The values are measured at the motor's four test points.
Size 100 to 160 180 to 280
Veff [mm/s] Veff [mm/s]
Max. permissiblevibrationseverity
4.5 7.1
GNA 250
GNA 180
GNA 112
GNA 200
The motors are vibration-resistant at up to 3 g. Higher loads are possible on request.
DC-shunt motors GN...N 03/05 Technical alterations reserved
Baumüller Nürnberg GmbH 45
GNA 132