What Ansi Size Is Bicycle Chain

Many roller chains are available in multi strands and we ve included charts to cover single strand thru quadruple strand.

What ansi size is bicycle chain.

Iso standard r606 only includes single double and triple strand sprockets. This is especially true for the sprockets for 1 2 3 3 32 chains. This measurement indicates the length of the links. Choose from our selection of ansi chain including over 550 products in a wide range of styles and sizes.

Roller chain is made in several sizes the most common american national standards institute ansi standards being 40 50 60 and 80. This led to bulkier heavier chain with a longer fatigue life that is still used today. Single speed bicycle chain is wider having a width of 1 8 inch. 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.

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

Figure 1 18 schematic diagram of bushingless bicycle chain. However the tooth shape is different. 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. Sprockets come in a wide range of tooth counts for each ansi chain size.

The diameters listed in our chart is the outside diameter of the sprocket tip of the sprocket tooth. Figure 1 17 bushingless bicycle chain components. Roller chain has been around for a long time and has evolved into a broad range of styles sizes. Both types of bicycle chain have a pitch of 1 2 inch ansi standard 40.

The basic sizes of the sprockets front and rear are common to all manufacturers.