1. Excellent UV resistance and ozone resistance; 2. Leave no trace on the floor, unlike the rubber wheel, there will be sulfur and carbon black precipitation; 3. Excellent safety and health performance, the product also has the environmental protection advantages of non-toxic, pollution-free and recyclable secondary processing. 4. Weather resistance, no corrosion, can be used in outdoor environment; 5. Good appearance, mild touch, easy coloring, uniform and stable tone; 6. Quiet operation, no noise interference, up to the mute effect; 7. Excellent impact resistance and cushioning performance can better protect your equipment, goods and the ground. 8. High shape memory performance, the wheel is not easy to deform when the equipment is placed under load for a long time. 9. Quiet operation without noise interference. Weather resistance and no corrosion. It can be used in various harsh and extreme outdoor environments. 10. Excellent wear resistance, comparable to polyurethane wheel. The strong and tough tread chemical structure ensures the flexible operation and rotation of the equipment. 11. It has strong puncture resistance and can be used on the ground with metal scrap, iron nails, gravel, etc. 12. It can withstand most chemical solvents, such as acid, alkali, alcohol and water vapor. 13. The adhesion between super artificial rubber tread and wheel core is very strong, which can pass the life test of American ICM standard casters. 14. The service temperature range is - 50 --- 125 ℃. Wheel Diameter Tread Width Capacity Per Caster Wheel Bearing Modle number Load Height Swivel Radius (mm) (mm) (kg) Swivel Rigid (mm) (mm) 100 51 160 Performa Rubber Delrin 4-4T50S-301C 4-4T01R-301C 141 83 Roller 4-4T50S-301E 4-4T01R-301E Double ball 4-4T50S-301 4-4T01R-301G 125 51 180 Performa Rubber Delrin 4-5T50S-301C 4-5T01R-301C 163 98 Roller 4-5T50S-301E 4-5T01R-301E Double ball 4-5T50S-301G 4-5T01R-301G 150 51 270 Performa Rubber Delrin 4-6T50S-301C 4-6T01R-301C 189 117 Roller 4-6T50S-301E 4-6T01R-301E Double ball 4-6T50S-301G 4-6T01R-301G 200 51 304 Performa Rubber Delrin 4-8T50S-301C 4-8T01R-301C 239 156 Roller 4-8T50S-301E 4-8T01R-301E Double ball 4-8T50S-301G 4-8T01R-301G