What Ansi Size Is Bicycle Chain

Sprocket diameter chart by chain size.

What ansi size is bicycle chain.

Roller chain has been around for a long time and has evolved into a broad range of styles sizes. In stock and ready to ship. Sprockets come in a wide range of tooth counts for each ansi chain size. 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.

And is standard 606 metric 8 where the 8 indicates the pitch in sixteenths of an inch. 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. The basic sizes of the sprockets front and rear are common to all manufacturers. 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.

This is especially true for the sprockets for 1 2 3 3 32 chains. The diameters listed in our chart is the outside diameter of the sprocket tip of the sprocket tooth. Below are roller chain size charts for ansi heavy series metric agricultural conveyor non standard chains. 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.

Iso standard r606 only includes single double and triple strand sprockets. The outer plates of an iso chain are taken from the chain size one level above the application requirements. Single speed bicycle chain is wider having a width of 1 8 inch. Figure 1 18 schematic diagram of bushingless bicycle chain.

Many roller chains are available in multi strands and we ve included charts to cover single strand thru quadruple strand. This led to bulkier heavier chain with a longer fatigue life that is still used today. Both types of bicycle chain have a pitch of 1 2 inch ansi standard 40. However the tooth shape is different.

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