FREUDENBERG SIMRIT
Technical Principles | Informations Techniques
Informaciones Técnicas | Princípios técnicos
44
Type
Special aspects
Special properties
Example of use
Special design
Material: FKM
Special design of the entire
construction;
for the integration in roller bearings
Paper industry, rolling mills,
large gearboxes
PTS
Sealing lip: PTFE
Static part: FKM
Metal part: DIN EN 10088
Very strong tightness compared to other
PTFE rings; Sealing lip with partial spiral
lead assures a secure and tight seating in
the housing
Use for special liquids,
with poor lubrication and dry running;
in 2-stroke engines, compressors,
in the foodstuffs industry,
in the chemicals industry
Types for special pressure loads
PPS (Premium Pressure Seal)
Profile optimisation of the
pressure loaded sealing lip
Pressure load as for type BABSL;
high reliability; longer service life
Hydro-pumps, hydro-motors
BAHD SN
Sealing texture on the air side of the
sealing lip; short, very stable sealing lip
Usage with high pressures or
pressure pulsations and low speeds
Material hardness: 90 Sh A
High pressure pumps with
low rotational speeds
Cassette Seals for special requirements
Bearing Unit Cassette Seal
Special type cassette;
material FKM; slip ring in Nitrosteel
Integrated type in roller bearings for
high ingress of dirt
Grease-lubricated wheel hubs
Soft Unitized Cassette Seal
Special type cassette double axial dirt lip;
material FKM or NBR
Type for large dirt ingress; the slip ring can
be installed
separately from the RWDR
during the fitting
Wheel hubs and pinions in axles for
agricultural and construction machinery
and commercial vehicles
Cassette Seal PTFE
Special type cassette with
PTFE sealing lip with lead;
dust lip made from FKM or
nonwowen material
Good protection against dust or
dirt ingress
Crankshaft seals in diesel engines
Cassette Seal Casco
Special type cassette with axial sealing lip
and double lead; material FKM;
dust lip in FKM or nonwowen material
Developed for long service life;
very low friction and very good resistance
with high-load
resistant oils;
secure handling and easy fitting
Crankshaft seals in diesel engines
Performance in relation to dirt from the outside
MSS 3
PTFE, nonwoven, or PTFE-impregnated
nonwoven dust lip
PTFE, nonwoven, or PTFE-impregnated
nonwoven dust lips prevents the ingress
of dirt underneath the sealing lip, but is
permeable to air; prevents the formation of
underpressure behind the sealing lip
Gearboxes
Transmissions
Engines
BA SL X6
Two dust lips
Against moderate dirt ingress
Note: preferably grease filling between
the sealing lips up to approx. 40 %
Gearboxes
Axles: pinion seal