Chemical degradation occurs when polymers are exposed to aggressive chemicals, leading to changes in their physical and chemical properties. Corrosive substances can cause swelling, embrittlement, or dissolution of the material, compromising its structural integrity. 

• Chemical-Resistant Materials: Select polymers with inherent chemical resistance.
• Protective Coatings: Apply chemical-resistant coatings or linings to protect the bearing surface. 
• Environmental Isolation: Design systems to minimize direct exposure to harmful chemicals through seals and barriers. 

UV radiation can break down polymer chains, leading to surface degradation, discoloration, and loss of mechanical properties. Prolonged exposure to sunlight and other weathering elements accelerates this process. 

• UV-Stabilized Polymers: Use materials with UV stabilizers or additives that absorb or block UV radiation. 
• Protective Coverings: Employ physical barriers like shields, covers, or housings to protect bearings from direct UV exposure. 
• Regular Inspections: Conduct regular inspections and maintenance to identify and address early signs of UV damage. 

Certain polymers can absorb moisture from the environment, leading to swelling, hydrolysis, and reduced mechanical strength. This is particularly problematic if the wrong bearing material is used in humid or wet conditions, where moisture ingress can significantly affect bearing performance. 

• Low Moisture-Absorption Materials: Choose polymers with low moisture absorption rates, such as ThorPlas-Blue. 
• Controlled Environments: Implement environmental controls to maintain low humidity levels around critical dry bearing applications. 

Advancements in material science and engineering continue to push the boundaries of what non-metallic self-lubricating bearings can achieve. Emerging trends and innovations include: 

• Advanced Composites: Development of composite materials combining polymers with fibers or nanoparticles to enhance chemical, UV, and moisture resistance. 
• Smart Bearings: Integration of sensors and IoT technology to monitor bearing conditions in real-time, allowing for proactive maintenance and early detection of environmental impacts. 
• Eco-Friendly Materials: Research into biodegradable or recyclable polymers to reduce the environmental footprint of bearing materials without compromising performance.