• polymer rings
• balls made of stainless steel, glass, polymer or other materials
• a polymer cage

Polymers have significantly different properties than steel. Therefore, 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 low tendency to creep
• low life cycle costs
• electrical insulator
• good damping properties
• high temperature usage (some bearings) 
  
• integrated functions for special bearings