Polyoxymethylene POM Plastic Ball (Also Known As Sai Steel Ball) Material Polyoxymethylene (POM) Diameter options 2mm, 2.38mm, 2.5mm, 2.778mm, 3mm, 3.175mm, 3.5mm, 4mm, 4.5mm, 4.763mm, 5mm, 5.55mm, 5.95mm, 6mm, 6.35mm, 7mm, 7.14mm, 8mm, 8.73mm, 9mm, 9.525mm, 10mm, 11.11mm, 12mm, 12.7mm, 14mm, 14.288mm, 15mm, 15.875mm, 16mm, 17mm, 18mm, 9.05mm, 20mm, 22.225mm, 24mm, 25mm, 25.4mm, 28mm, 30mm, 32mm, 35mm, 38.1mm, 40mm, 45mm, 50mm, 50.8mm Key benefits rigidity and dimensional stability for reliable performance Low friction and wear resistance to extend service life Corrosion resistance and nonmagnetic properties Precise, consistent roundness across sizes for accurate fits Wide size range enables multiple applications with a single material Performance and compatibility Suitable for applications requiring a nonmetallic, hard plastic ball Compatible with standard mechanical assemblies that demand precise ball sizing Durable in general mechanical environments and resistant to typical wear Use scenarios Precision bearing assemblies and other mechanical components that require accurate balls Ball transfer units and material handling setups that rely on smooth, uniform spheres Hobby projects, DIY fixtures, and model assemblies needing small to large POM balls Notes Brand reference: Polyoxymethylene POM Plastic Ball (Also Known As Sai Steel Ball) Sizes listed cover a broad range to fit diverse design requirements