Xu Collection, Upper Volume Radical: Metal (jīn) 鐗 Kangxi Stroke Count: 20 Page 1322, Entry 19 Pronounced jiǎn According to the Shuo Wen Jiezi (Shuo wen), it is the iron component of a carriage axle. According to the Guangya (Boya), it is a reinforcing sleeve. According to the Shiming (Shiming), it refers to an intermediary; it is placed between the axle and the hub to prevent friction.