Why plastic cages?
Cages out of plastic are in use for standard bearings (e.g. model series 60/62), large bearings (e.g. for wind energy),
but also for high-performance bearings.
Additional to technical plastic like polyamide there are high-performance plastic like PEEK in use too.
These materials are characterized by their high strength, great temperature resistance and resistance to
(especially aggressive) chemicals.
The benefits of plastic cages are, in our view, especially the higher absorption of vibrations and shocks of a
plastic cage, which result as well out of the properties of the plastic as the flexibility in the design.