Mechanical Data
2.2 Selecting the motor degree of protection
Table 2-5 Overview, motor shaft sealing
Degree of protection
EN 60034-5
Shaft sealing using Applications
IP64 (for 1FK) Without simple labyrinth seal
It is not permissible that there is any
the flange.
Note:
For IP 64 degree of protection it is not
permissible that liquid collects in the
flange.
Shaft outlet is not dust tight
IP64 (for 1FT) Labyrinth seal
It is not permissible that there is any
the flange.
Note:
For IP 64 degree of protection it is not
permissible that liquid collects in the
flange.
Shaft outlet is not dust tight
IP65 (only for 1FT6
)
Gamma ring
Shaft outlet seal to protect against spray
water and cooling-lubricating medium. It
is permissible that the Gamma ring runs
For IP65 degree of protection it is not
permissible that liquid collects in the
flange.
IP65
1)
for 1FK☐
IP67
2)
(for 1FT☐)
Radial shaft seal DIN 3760
For gearbox mounting (for gearboxes
which are not sealed) to seal against oil.
The sealing lip must be adequately
in order to guarantee reliable function.
Lifetime 5000 h - 10000 h (nominal
value)
If a radial shaft sealing ring runs dry, then
functionality and the lifetime.
IP68
2)
(only for 1FT6)
Refer to IP 67; in addition, a
wetting sealing agent is used at
the mechanical interfaces to the
frame.
Refer to IP 67
moisture in the area around the shaft and
moisture in the area around the shaft and
dry. Lifetime 20 000 h (nominal value).
cooled and lubricated by the gearbox oil
this has a negative impact on the
1)
For 1FK7, DE flange, IP67
2)
For 1FT6, sealing air connection in the cover at the non-drive end (this can be used as an additional sealing measure when the motors are
operated in extremely moisture/humid environments)
General Section for Synchronous Motors
2-6 Configuration Manual, (PJAL), 11.2005 Edition, 6SN1 197-0AD07-0BP4
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