Sprockets for dual pitch roller chains are available 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. 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 in full or in two tooth steps. Full tooth measures are double-toothed so that only part of the tooth is used effectively. The benefit is that when the chain is definitely exchanged the up to now unutilised the teeth can be used after that, and the sprockets can remain in the system.
In order to boost the life cycle of a chain drive even more, sprockets can be manufactured with half tooth steps. With every rotation the chain joints move one tooth forward in the meshing. This reduces the wear of the chain and the tooth edges. This sort of toothing is often used when, due to the respective design, only minor deflections can be realised.
Our sprockets and plate sprockets are made from C 45, stainless steel, and special components with a material strength of between 500 N/mm² and 600 N/mm². Aside from hardened toothing, we also supply surface area treated types.
Double pitch roller chains are manufactured according to the particular 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 dual pitch roller chains are available in a single 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 double pitch sprockets include regular roller and carrier roller style, solitary duty sprockets are created to purchase and typically take anywhere from a couple of business days to a few 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 permit correct seating of the chain. On also 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 only on almost every other revolution which of 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 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 produced to where every tooth gets involved evenly on every revolution. This sprocket type has become obsolete in most applications but continues to be available.
When using double pitch roller chain it is extremely recommended if not necessary to use a double pitch sprocket. It is because dual pitch sprockets are produced with a special tooth profile which allows for the roller to correctly seat and engage with one’s teeth of the sprocket. The above photo on the left may be the standard tooth profile and the picture on the right is the special double pitch sprocket profile. As you can see above, the dual pitch sprockets tooth profile is usually somewhat deeper and cut differently to fully accept the dual pitch chain roller. If utilizing a standard sprocket, failing to engage will lead to chain jumping and also excessive wear. Something vital that you note can be that with chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the tooth count can be 31 or even more you can use a standard roller chain sprocket. This guideline does not connect with carrier roller design chains which where in fact the roller diameter exceeds the sidebar elevation, these chain sizes include C2042, C2052, C2062, C2062H, C2082H, C2102H, C2122H, and C2162H.
2042A16 SPROCKET WITH STOCK BORE