SKF - Rolling Bearings

15H Polymer ball bearings
SKF polymer ball bearings are typically used in
applications where resistance to moisture or
chemicals is essential and steel bearings cannot
be used or only with certain restrictions. In
those applications, polymer ball bearings are
an excellent solution from both a technical and
economic perspective as they are characterized
by the following properties:
• corrosion and chemical resistant
• high wear- and fatigue-resistant polymer
• self lubricating (no lubricant required)
• low coefficient of friction
• quiet running
• lightweight
• high specific strength (strength to weight
ratio)
• high dimensional stability due to the low
tendency to creep
• low lifecycle costs
• electrical insulator
These properties make polymer ball bearings
appropriate for the following industries and
applications:
• food and beverage industry
• medical and pharmaceutical industry
• chemical industry
• textile industry
• electrical industry
• photographic industry
• modelling and lightweight applications
• vacuum applications
• office products
Designs and variants
The standard assortment of SKF polymer ball
bearings listed in this catalogue constitutes
the most commonly used sizes of:
• single row deep groove ball bearings
(† fig. 1)
• thrust ball bearings († fig. 2)
Both bearing designs have uninterrupted
raceways and are non-separable. Standard
bearings are only available as open bearings
(without seals or shields).
On request, other polymer bearings or units
are available († fig. 3). Customized polymer
bearings can be manufactured economically
even in small quantities. Integrated functions
(e.g. gearing, specific shape of the bore, etc.)
that can reduce the number of components
and assembly costs are also possible.
Ex amples of those bearings, which are not
listed in this catalogue, include:
• inch single row deep groove ball bearings
• full complement single row deep groove ball
bearings
• sealed single row deep groove ball bearings
• double row deep groove ball bearings
• track runner bearings
• Y-bearings and Y-bearing units
• special size bearings
• bearings or components made of other
materials
• bearing units with integrated functions
NOTE: Polymer ball bearings cannot accommodate
the same heavy loads or high speeds
as same-sized steel bearings.
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