Sprockets for double pitch roller chains can be found in an individual or double-toothed style. Single-toothed sprockets for dual pitch roller chains possess the same behaviour as standard sprockets for roller chains according to ISO 606. Due to the bigger chain pitch of double pitch roller chains it is possible to increase toughness by toothing modifications.

Double-toothed sprockets can be found either completely or in half tooth steps. Complete tooth measures are double-toothed so that only part of the the teeth is used effectively. The advantage is that whenever the chain can be exchanged the up to now unutilised the teeth can be used after that, and the sprockets can stay in the system.
In order to boost the life cycle of a chain drive even more, sprockets can be manufactured with fifty percent tooth steps. With every rotation the chain joints move one tooth ahead in the meshing. This reduces the put on of the chain and the tooth edges. This kind of toothing is frequently used when, due to the respective design, only minor deflections could be realised.
Our sprockets and plate sprockets are made from C 45, stainless, and special materials with a material power of between 500 N/mm² and 600 N/mm². Aside from hardened toothing, we also supply surface treated types.
Dual pitch roller chains are manufactured 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 on hub and hole circle

Our sprockets for dual pitch roller chains are available in a single or in a double-toothed version.

Our in-stock standard double pitch sprockets are manufactured out of SAE-1045 case hardened steel with extra-hardened teeth and coated with black oxide. These sprockets are really durable, high-strength, and produced to high precision tolerances. Stock dual pitch sprockets include standard roller and carrier roller design, one duty sprockets are made to order and typically take anywhere from a couple of business days to a few weeks to manufacture based on our factory loads and sprocket specifics.
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 just engage with the chain on every other tooth because there are two the teeth per pitch. On odd tooth counts, any provided tooth is engaged only on almost every other revolution which of training course increases the sprocket life.
Carrier Roller Type
Carrier roller type dual pitch sprockets are cut with space cutters to allow the carrier roller to properly chair and build relationships 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 every revolution. This sprocket type has become obsolete generally in most applications but continues to be available.
When using dual pitch roller chain it really is extremely recommended if not required to use a dual pitch sprocket. The reason being dual pitch sprockets are manufactured with a particular tooth profile which allows for the roller to correctly seat and engage with one’s teeth of the sprocket. The above picture on the left may be the regular tooth profile and the photo on the right is the special double pitch sprocket profile. As you can plainly see above, the double pitch sprockets tooth profile is usually slightly deeper and cut differently to fully 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 usually that with chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the tooth count can be 31 or more you can make use of a typical roller chain sprocket. This rule does not apply to carrier roller design 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
2042A16 Sprocket