Sprockets for dual pitch roller chains can be found in an individual or double-toothed design. Single-toothed sprockets for double pitch roller chains have the same behaviour as standard sprockets for roller chains in accordance to ISO 606. Because of the bigger chain pitch of double pitch roller chains it is possible to increase durability by toothing modifications.
Double-toothed sprockets are offered either in full or in two tooth steps. Complete tooth techniques are double-toothed so that only part of the the teeth is used effectively. The benefit is that when the chain is exchanged the up to now unutilised tooth can be used after that, and the sprockets can stay in the system.
In order to increase the life cycle of a chain drive even more, sprockets can be produced with half tooth steps. With every rotation the chain joints move one tooth ahead in the meshing. This decreases the wear of the chain and the tooth edges. This type of toothing is often used when, due to the respective design, just minor deflections could be realised.
Our sprockets and plate sprockets are made of C 45, stainless, and special components with a material strength of between 500 N/mm² and 600 N/mm². Aside from hardened toothing, we also supply surface treated types.
Dual pitch roller chains are produced according to the respective order and customers’ specifications.
On request we supply sprockets with:
Bore and grove
Tapped and pin holes for bore
Tapped and pin holes for bore on pitch circle
Slot holes upon hub and hole circle
Our sprockets for double pitch roller chains are available in an individual or in a double-toothed version.
Our in-stock standard dual pitch sprockets are manufactured out of SAE-1045 case hardened steel with extra-hardened teeth and coated with black oxide. These sprockets are extremely durable, high-strength, and produced to high precision tolerances. Stock dual pitch sprockets include regular roller and carrier roller style, single duty sprockets are made to order and typically take anywhere from a couple of business days to some weeks to produce based upon our factory loads and sprocket specifics.
Standard Roller Type
Regular roller type sprockets will be the same outdoors diameter and width as the single-pitch equivalent just with a different tooth profile to allow correct seating of the chain. On actually tooth-counts, these sprockets just build relationships the chain on every other tooth because there are two teeth per pitch. On odd tooth counts, any provided tooth is engaged only on every other revolution which of training 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 build relationships each tooth. These sprockets could have the same diameter as the ANSI single-pitch equivalent.
Single Duty Type
Solitary duty sprockets are produced to where every tooth gets involved evenly on each revolution. This sprocket type is becoming obsolete generally in most applications but is still available.
When using double pitch roller chain it is extremely recommended if not required to use a double pitch sprocket. The reason being double pitch sprockets are produced with a particular tooth profile which allows for the roller to correctly seat and build relationships the teeth of the sprocket. The above picture on the left may be the regular tooth profile and the photo on the right may be the special double pitch sprocket profile. As possible plainly see above, the double pitch sprockets tooth profile is definitely somewhat deeper and cut differently to totally accept the dual pitch chain roller. If using a standard sprocket, failure to engage will result in chain jumping and also excessive wear. Something important to note is that with chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the tooth count is 31 or more you can make use of a standard roller chain sprocket. This guideline does not apply to carrier roller style chains which where the roller diameter exceeds the sidebar height, these chain sizes consist of C2042, C2052, C2062, C2062H, C2082H, C2102H, C2122H, and C2162H.
2042A16 SPROCKET WITH STOCK BORE