Daidaiton sa na jerin TXR (misali samfurin hannun hannu nau'in kwaya ball dunƙule) sun dogara ne akan C5, Ct7 da Ct10 (JIS B 1192-3). Dangane da daidaiton darajar, wasan Axial 0.005 (Sake saukewa: C5), 0.02 (Ct7) da 0.05mm ko ƙasa da haka (Ct10) suna cikin hannun jari. Jerin TXR (Standard stock na Sleeve nau'in kwaya ball dunƙule) na dunƙule shaft dunƙule abu S55C (induction hardening), goro abu SCM415H (carburizing da hardening), da surface taurin na ball dunƙule part ne HRC58 ko mafi girma.