1. Sealed Ball BearingsStructure: Sealed ball bearings feature integrated shields (e.g., metal 2Z shields) or contact seals (e.g., rubber 2RS seals) that enclose the rolling elements, preventing conta...
Plastic bearing cage is an important component of rolling bearing, plastic bearing cage has some advantages of plastic material, help the bearing to play a better role in some specific environments.
Compared with metal cages, plastic cages have lower overall weight, low friction and noise, and good corrosion resistance, and are widely used in specific working conditions and environments.