Siemens SIMOTICS S-1FK2 User Manual

Motor shaft sealing
IP64 IP65


① Ball bearing with sealing washers
Moisture in the area around the shaft and the
󹪞ange is not permissible.
Note:
For IP64, it is not permissible that liquid collects
in the 󹪞ange.
① Radial shaft sealing ring without annular spring
Sealing of the shaft outlet against splashwater and/or
cooling-lubricating medium. Dry running of the radial
shaft sealing ring is permissible. Service life approx.
25000 h (guide value).
With degree of protection IP65, it is not permissible for
liquid to collect in the 󹪞ange.
More information is provided in Chapter "Shaft extension (Page 34)".
2.2.5 Noise emission
When operated in the speed range 0 to rated speed, 1FK2 motors can reach the following
measuring surface sound pressure level L
p
:
Table 2-2 Sound pressure level
Cooling method Frame size Enveloping surface sound pressure level L
p
Naturally cooled 1FK2☐03
1FK2☐04
55 dB(A) + 3 dB tolerance
1FK2☐05
1FK2☐06
65 dB(A) + 3 dB tolerance
1FK2☐08
1FK2☐10
70 dB(A) + 3 dB tolerance
The motors are approved for numerous installation and operating conditions. These conditions
such as rigid or vibration-isolated foundation design in󹪞uence noise emission, sometimes
signi󹪝cantly.
2.2.6 Derating factors
Due to the decreasing air pressure in higher installation altitudes, the cooling of the motor
deteriorates. Therefore, reduce the power of the motor as the installation altitude increases.
Multiply the permissible torques or powers by the factors from the following table.
Description of the motors
2.2 Technical characteristics and ambient conditions
SIMOTICS S-1FK2 synchronous motors for SINAMICS S120
26 Operating Instructions, 02/2022, A5E46089564B AD

Siemens SIMOTICS S-1FK2 Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FK2
Category	Engine
Language	English