... with all diameters in material POM ( Delrin),PP, HDPE,PS,... POM Balls: Material: PP Size: 2.38mm~50.4mm(3/32"~2 ... balls., The most common applications include plastic bearings and rollers, ball bearings for furniture, micro-pumps for sprays, dispensers, pumps and ... + . 0508+ 0020.0254.0010III+ .1270+ .0050.1270.0050 Precision Plastic Ball, PP Balls