Depending on their series, angular contact thrust ball bearings for screw drives are fitted as standard with one of the following cages:
- a glass fibre reinforced PA66 cage, window-type, ball centred, no designation suffix
- a glass fibre reinforced PA66 cage, snap-type, ball centred, no designation suffix
These robust cages are extremely light to minimize centrifugal forces and accommodate rapid accelerations and decelerations.
For additional information about the materials, refer to Cage materials.