The processing technology of bicycle sprocket?

Processing technology: different materials, processing technology is different

The most common, medium and low speed, low power, optional A3, A5, cast iron

有冲击载荷,z小于等于25时,可选用15#钢或20#钢,渗碳\淬火\回火,HRC50~60

There is impact load, when z is greater than 25, 35# steel can be selected, normalized, 160~200HB

要求耐磨,无剧烈冲击,用45#,50#,45Mn,ZG45,淬火\回火,HRC40~50

z小于30的大功率,用15Cr,20Cr,渗碳\淬火\回火,HRC50~60

重要的,强度较高和耐磨的,用40Cr、35SiMn、35CrMo,淬火\回火,HRC40~50