Ball bearing replacements (Set of 4)
Delrin Plastic Resin Balls x 4. Delrin is an engineering thermoplastic used in precision parts that require high stiffness, low friction and excellent dimensional stability. As many other synthetic polymers. Delrin is characterized by its high strength, hardness and stiffness to ~40ºC. POM is intrinsically opaque white it has a density of 1.410-1.420 g/cm³.
Delrin thermoplastic is a semi-crystalline polymer (75-85% crystalline) with a melting point of 175ºCelsius. It is a tough material with a very low coefficient of friction.
4 x Ball bearing replacement.