Siemens SIMOTICS S-1FT2 User Manual

Motor shaft sealing
The motors are sealed di󹪜erently to achieve degrees of protection according to IEC60034-5.
IP64 IP65 IP67



① Ball bearing with sealing
washers
Moisture in the area around the
shaft and the 󹪞ange is not per‐
missible.
Note:
For IP64, it is not permissible that
liquid collects in the 󹪞ange.
① Radial shaft sealing ring with‐
out annular spring
Sealing of the shaft outlet
against splashwater and/or cool‐
ing-lubricating medium. Dry run‐
ning 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 col‐
lect in the 󹪞ange.
① Radial shaft sealing ring
For gearbox mounting (for gear‐
boxes that are not sealed) to seal
against oil.
The sealing lip must be adequate‐
ly cooled and lubricated by the
gearbox oil in order to guarantee
reliable function.
Service life approx.10000h
(guide value).
If a radial shaft sealing ring runs
dry, then this has a signi󹪝cant
negative impact on the function‐
ality and the service life.
More information is provided in Chapter "Shaft extension (Page42)".
3.1.5 Noise emission
Sound pressure level
When operated in the speed range 0 to rated speed, 1FT2 motors can reach the following
enveloping surface sound pressure levels L
p
.
Cooling method Frame size Enveloping surface sound pressure level L
p
Naturally cooled 1FT2☐03
1FT2☐04
55dB (A) + 3 dB tolerance
1FT2☐05
1FT2☐06
65dB (A) + 3 dB tolerance
1FT2☐08
1FT2☐10
70dB (A) + 3 dB tolerance
Force-ventilated 1FT2☐08 73dB (A) + 3 dB tolerance
Description of the motors
3.1Technical characteristics and ambient conditions
SIMOTICS S-1FT2 synchronous motors for SINAMICS S120
Operating Instructions, 12/2023, A5E50610821B AF 31

Siemens SIMOTICS S-1FT2 Specifications

General

Brand	Siemens
Model	SIMOTICS S-1FT2
Category	Engine
Language	English