A.1/23.5in B.1/24.3in C.1/25.4in D.1/28.7in
A.10°~15° B.15°~20° C.20°~25° D.25°~30°
A.軸向全跳動 B.徑向全跳動 C.軸向圓跳動 D.徑向圓跳動