What Ansi Size Is Bicycle Chain

The outer plates of an iso chain are taken from the chain size one level above the application requirements.

What ansi size is bicycle chain. The chain in use on modern bicycles has a 1 2 inch 12 7 mm pitch which is the distance from one pin center to another ansi standard 40 where the 4 in 40 indicates the pitch of the chain in eighths of an inch. In stock and ready to ship. Figure 1 18 schematic diagram of bushingless bicycle chain. This measurement indicates the length of the links.

Roller chain has been around for a long time and has evolved into a broad range of styles sizes. Below is a sprocket diameter chart we ve put together to help you identify the sprocket diameter you need based on the chain size and tooth count. Single speed bicycle chain is wider having a width of 1 8 inch. Iso standard r606 only includes single double and triple strand sprockets.

However the tooth shape is different. Sprocket diameter chart by chain size. Many roller chains are available in multi strands and we ve included charts to cover single strand thru quadruple strand. The first digit s indicate the pitch of the chain in eighths of an inch with the last digit being 0 for standard chain 1 for lightweight chain and 5 for bushed chain with no rollers.

And is standard 606 metric 8 where the 8 indicates the pitch in sixteenths of an inch. This is especially true for the sprockets for 1 2 3 3 32 chains. Figure 1 17 bushingless bicycle chain components. Choose from our selection of ansi chain including over 550 products in a wide range of styles and sizes.

This led to bulkier heavier chain with a longer fatigue life that is still used today. The basic sizes of the sprockets front and rear are common to all manufacturers. Both types of bicycle chain have a pitch of 1 2 inch ansi standard 40. Although every type of bicycle chain and freewheel have a 1 2 in pitch the width of chain varies quite a bit from 3 32 to 1 8.

The diameters listed in our chart is the outside diameter of the sprocket tip of the sprocket tooth.