Catalogues
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• General Index
• Interchange
• Nomenclature
Bearing Tables
• SEA
• SEB
• VEB
• VEB/NS, VEB/XN
• HB
• HB/NS, HB/S/NS, HB/S/XN
• EX
• VEX VEX/S
• VEX/NS, VEX/S/NS, VEX/S/NX
• HX, HX/NS
• HX/NS, HX/S/NS, HX/S/XN
• E200
• BS200, BS200/S
• BS200 (Special)
• BSDU
• BSQU
• BSQU/1
Engineering
• ABEC Precision Tables
• Bearing Calculations
• Bearing Marking
• Boxes & Packaging
• Ceramic Ball Material
• Lubrication
• Sealed Bearings
• Size & Availability
• Symbols and Units
• Technology
• Tolerances - Assembly
• Tolerances - Geometry
SNFA Super Precision Angular Contact Bearings
Sealed Bearings
Sealed bearings produced by SNFA offer several advantages in
terms of reliability and safety. Seals protect the
bearing from the infiltration of contaminants and from
lubricant deterioration. Furthermore, the existing space
between the cage and the seals creates a reservoir of
grease that ensures high performance and a longer
working life. Seals have been designed purposely to
optimize the inner dimensions of the bearing and so
maintain operational reliability.
The main causes
reducing the actual working life of bearings are owing
to:
• bearing contamination with particles from washing
• residual moisture
• lubricant contamination
• use of lubricants unsuitable for
the operating conditions
• lubricant removal and deterioration by the air flow from blown seals during operation
The SNFA sealed bearing production is currently limited to
the ISO 10 and ISO 19 series. The series that SNFA is
currently producing are the most suitable versions for
high rotational speed. This is the operational area in
which it is most important to ensure that there are no
contaminants inside the bearing and that the correct
type and quantity of grease are used.
For additional information about seal and sealing options,
please contact
Application Support.
