What is a roller chain offset link?
Offset links, also known as links or crank links, are used to make a chain an odd number of pitches in length, often used to shorten a chain by one pitch. Offset links are available in two different configurations. Single-Pitch offset links, slip-fit type, are furnished with a slip-fit pin unassembled in the linkplates. A flat is milled on one end of the pin preventing it from turning in the linkplate once installed. Two-Pitch offset links, press-fit type, are an offset link and a roller link assembled together. The press fit construction of this assembly greatly increases its structural rigidity, reliability, and durability. For these reasons, the two-pitch offset assembly is recommended in preference to the single pitch offset. However, due to the reduction in the chain’s working capacity offset links, of either type, are not recommended in performance oriented drives.
Offset links, also known as ½ links or crank links, are used to make a chain an odd number of pitches in length, often used to shorten a chain by one pitch. Offset links are available in two different configurations. Single-Pitch offset links, slip-fit type, are furnished with a slip-fit pin unassembled in the linkplates. A flat is milled on one end of the pin preventing it from turning in the linkplate once installed. Two-Pitch offset links, press-fit type, are an offset link and a roller link assembled together. The press fit construction of this assembly greatly increases its structural rigidity, reliability, and durability. For these reasons, the two-pitch offset assembly is recommended in preference to the single pitch offset. However, due to the reduction in the chain’s working capacity offset links, of either type, are not recommended in performance oriented drives.
