Double universal joint What type of universal joint should I choose?Series 1 – crimped axle 1.00.5 More info Technical PDFSeries 2 – outer ring 2.00.5 More info Technical PDFSeries 3 – inner ring 3.00.5 More info Technical PDFSeries 5 – needle bearing 5.00.5 More info Technical PDFSeries 6 – Spheroidal ball joint 6.00.5 More info Technical PDFSeries 7 – stainless steel crimped axle 7.00.5 More info Technical PDF