Sprockets for double pitch roller chains can be found in an individual or double-toothed design. Single-toothed sprockets for dual pitch roller chains have the same behaviour as regular sprockets for roller chains according to ISO 606. Because of the larger chain pitch of double pitch roller chains it is possible to increase toughness by toothing modifications.

Double-toothed sprockets are offered either completely or in half tooth steps. Complete tooth guidelines are double-toothed to ensure that only part of the teeth is used effectively. The advantage is that whenever the chain can be exchanged the up to now unutilised teeth can be used then, and the sprockets can stay in the system.
In order to raise the life cycle of a chain drive even more, sprockets can be produced with fifty percent tooth steps. With every rotation the chain joints move one tooth ahead in the meshing. This decreases the put on of the chain and the tooth edges. This type of toothing is often used when, due to the respective design, only minor deflections can be realised.
Our sprockets and plate sprockets are made of C 45, stainless steel, and special components with a material strength of between 500 N/mm² and 600 N/mm². Apart from hardened toothing, we also supply surface area treated types.
Double 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 on pitch circle
Slot holes upon 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 dual pitch sprockets are manufactured out of SAE-1045 case hardened metal with extra-hardened teeth and coated with black oxide. These sprockets are really durable, high-strength, and manufactured to high precision tolerances. Stock dual pitch sprockets include standard roller and carrier roller style, single duty sprockets are created to order and typically take from a few business days to some weeks to produce based on our factory loads and sprocket specifics.
Standard Roller Type
Regular roller type sprockets are the same outside diameter and width as the single-pitch equivalent simply with a different tooth profile to permit correct seating of the chain. On even tooth-counts, these sprockets only build relationships the chain on almost every other tooth because there are two tooth per pitch. On odd tooth counts, any provided tooth is engaged just 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 engage with each tooth. These sprockets will have the same diameter as the ANSI single-pitch equivalent.
Single Duty Type
Solitary duty sprockets are produced to where every tooth gets engaged evenly on every revolution. This sprocket type has become obsolete in most applications but is still available.
When using dual pitch roller chain it is extremely recommended if not necessary to use a dual pitch sprocket. This is because dual pitch sprockets are produced with a special tooth profile which allows for the roller to correctly seat and engage with the teeth of the sprocket. The above photo on the left is the regular tooth profile and the picture on the right is the special dual pitch sprocket profile. As you can plainly see above, the dual pitch sprockets tooth profile is slightly deeper and cut differently to totally accept the double pitch chain roller. If using a standard sprocket, failure to engage will lead to chain jumping along with excessive wear. Something important to note can be that with chain sizes C2040, C2050, C2060, C2060H, C2080H, C2100H, C2120H, and C2160H when the tooth count is certainly 31 or more you can make use of 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 height, these chain sizes consist of C2042, C2052, C2062, C2062H, C2082H, C2102H, C2122H, and C2162H.
2042A16 SPROCKET WITH STOCK BORE
2042A16 Sprocket