086-0538-6303611
Rm. 520, Bldg. A, Guoshan Center, Taishan Dist., Tai'an, Shandong, China (Mainland)
High quality 50mm PA66 Sphere Solid nylon ball for bearings
| Item | POM | PA66 | PP | PTFE |
| Material | Polyacetal | Nylon 66 | Polypropylene | 20% Teflon + 80% Delrin |
| Density(g/cm³) | 1.42 | 1.14 | 0.91 | 1.5 |
| Hardness | 120 | 110 | 90 | 115 |
| (Rockwell R scale) | ||||
| Wear resistant | 0.37 | 0.18 | 385-560 | 0.19 |
| (kgf/cm²) | ||||
| WearAbsorption(%) | 0.22-0.25 | 8.4 | 0.03 | 0.2 |
| HeatResistance(℃) | 160-170 | 180-230 | 120 | 340 |
| Resistance to weakacid | good | fair | excellent | good |
| Resistance to strong acid | poor | poor | fair | fair |
| Resistance to strong alkali | good | good | good | good |
| Resistance to organic solution | good | good | good | good |
| Feature | High strength and stiffness, enhanced dimensional stability and is easy to machine | Excellent wear resistance, good tensile strength; high durability | Light weight, good dielectric, good tensile strength. Color easily, Matte surface finish | Good wear, heat resistance; good corrosion resistance, Dark brown color |
| Applications | POMball table drawer slide device bearings, rollers, valves, electronic apparatus, sailing apparatus. | used for transfusion, level calibration indicator. | Used in check valve, light load, the knob pull switch, low-cost | Particularly suitable for use in cryogenic liquids and acids under the conditions of the instrument. |
