AN IMPROVED ROLLER CHAIN WITH PRESCRIBED PITCH FOR TRANSMITTING POWER OF A DRIVE SHAFT TO A DRIVEN SHAFT

摘要

To provide a roller chain having a pitch of 12.7 mm and corresponding to ISO08B or ISO08MB which is lightweight, can be manufactured inexpensively, and is small in elongation due to wear, outer link plates and inner link plates have a thickness of 1.2 mm, and bending deformation of pins due to tensile stresses in inner and outer link plates is restricted whereby wear between pins and bushes is restricted. Bushes manufactured by cold forming are used.