Sprockets for double pitch roller chains are available in a single or double-toothed design. Single-toothed sprockets for double pitch roller chains have the same behaviour as regular sprockets for roller chains in accordance to ISO 606. Due to the larger chain pitch of double pitch roller chains you’ll be able to increase durability by toothing modifications.
Double-toothed sprockets can be found either completely or in two tooth steps. Full tooth actions are double-toothed to ensure that only part of the tooth is used effectively. The advantage is that when the chain is exchanged the so far unutilised teeth can be used after that, and the sprockets can remain in the system.
In order to increase the life cycle of a chain drive a lot more, sprockets can be manufactured with half tooth steps. With every rotation the chain joints move one tooth ahead in the meshing. This reduces the wear of the chain and the tooth edges. This kind 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 steel, and special materials with a material strength of between 500 N/mm² and 600 N/mm². Apart from hardened toothing, we also supply surface treated types.
Dual pitch roller chains are manufactured according to the respective order and customers’ specifications.
On demand we supply sprockets with:
Bore and grove
Tapped and pin holes for bore
Tapped and pin holes for bore upon pitch circle
Slot holes on hub and hole circle
Our sprockets for dual pitch roller chains can be found 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 double pitch sprockets include standard roller and carrier roller style, solitary duty sprockets are made to purchase 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
Regular roller type sprockets will be 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 tooth per pitch. On odd tooth counts, any given tooth is engaged just 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 build relationships each tooth. These sprockets could 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 is becoming obsolete in most applications but is still available.
When using dual pitch roller chain it really is highly recommended if not necessary to use a dual pitch sprocket. It is because dual pitch sprockets are manufactured with a particular tooth profile that allows for the roller to properly seat and engage with the teeth of the sprocket. The above photo on the left is the standard tooth profile and the picture on the right is the special dual pitch sprocket profile. As possible plainly see above, the dual pitch sprockets tooth profile is certainly slightly deeper and cut differently to fully accept the dual pitch chain roller. If utilizing a standard sprocket, failing to engage will result in chain jumping in addition to excessive wear. Something vital that you note is certainly that with chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the tooth count is definitely 31 or even more you can make use of a standard roller chain sprocket. 
This guideline does not connect with 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
2042A16 Sprocket