Standard double-pitch sprockets are made from SAE-1045 case-hardened steel, with teeth that have been extra-hardened as well as a black oxide coating. These sprockets are extremely long-lasting with high strength and are made to extremely precise tolerances. Double-pitch sprockets that are in stock include standard rollers and carriers. style rollers Single-duty sprockets can be made to order. They generally take between one or two business days to several weeks to produce based on our factory load and sprocket specifications.
Standard Roller Type
Standard roller-type sprockets are the same outside diameter and width as the single-pitch equivalent just with a different tooth profile to allow proper seating of the chain. On even tooth counts, these sprockets only engage with the chain on every other tooth because there are two teeth per pitch. On odd tooth counts, any given tooth is engaged only on every other revolution which of course increases the sprocket life.
Carrier Roller Type
Carrier roller-type double-pitch sprockets are cut with space cutters to allow the carrier roller to properly seat and engage with each tooth. These sprockets will have the same diameter as the ANSI single-pitch equivalent.
Single Duty Type
Single-duty sprockets are manufactured to where every tooth gets engaged evenly on each revolution. This sprocket type has become obsolete in most applications but is still available.
If you are using a double-pitch roller chain, it is recommended to use it even if it is you do not need to utilize the double-pitch sprocket. This is due to the fact that double-pitch sprockets are made with a unique tooth profile which allows the roller to sit properly and connect with the sprocket’s teeth. The photo above on the left shows the normal tooth profile, and the one on the right shows the double-pitch sprocket’s special profile. As you see the double-pitch sprockets ‘ tooth profile is a bit deeper and is cut in a different way to accommodate this double-pitch roller. If you’re using an ordinary sprocket to engage could cause chain jumps and wear that is excessive. Important to remember is that for chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the number of teeth is greater than 31, you can utilize an ordinary roller chain sprocket. This does not apply to the type of roller chain that is used by carriers in which the diameter of the roller is greater than the sidebar’s height. the chain sizes are C2042,C2052, C2062 as well as C2062H, C2082H the C2102H, C2122H and C2162H.