November 25, 2019

Sprockets for double pitch roller chains can be found in an individual or double-toothed design. Single-toothed sprockets for dual pitch roller chains possess the same behaviour as standard sprockets for roller chains according to ISO 606. Because of the bigger chain pitch of dual pitch roller chains you’ll be able to increase durability by toothing modifications.

Double-toothed sprockets are offered either completely or in half tooth steps. Full tooth steps are double-toothed to ensure that only part of the teeth is used effectively. The benefit is that whenever the chain can be exchanged the so far unutilised teeth can be used then, 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 fifty percent tooth steps. With every rotation the chain joints move one tooth forward in the meshing. This decreases the put on of the chain and the tooth edges. This type of toothing is frequently used when, due to the respective design, just minor deflections can be realised.
Our sprockets and plate sprockets are made from C 45, stainless steel, and special materials with a material power 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 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 dual pitch roller chains can be found in an individual 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 dark oxide. These sprockets are extremely durable, high-strength, and manufactured to high precision tolerances. Stock dual pitch sprockets include regular roller and carrier roller design, solitary duty sprockets are made to order and typically take from a few business days to a few weeks to manufacture based on our factory loads and sprocket specifics.
Standard Roller Type
Regular roller type sprockets are the same outdoors diameter and width as the single-pitch equivalent simply with a different tooth profile to permit proper seating of the chain. On even tooth-counts, these sprockets only 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 almost 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 permit the carrier roller to properly seat and build relationships each tooth. These sprockets will have the same diameter as the ANSI single-pitch comparative.
Single Duty Type
Single duty sprockets are manufactured to where every single tooth gets involved evenly on every revolution. This sprocket type has become obsolete in most applications but is still available.
When using double pitch roller chain it is extremely recommended if not necessary to use a dual pitch sprocket. It is because double pitch sprockets are produced with a special tooth profile that allows for the roller to properly seat and engage with one’s teeth of the sprocket. The above photo on the left may be the standard tooth profile and the photo on the right is the special double pitch sprocket profile. As you can see above, the double pitch sprockets tooth profile is usually somewhat deeper and cut differently to fully accept the double pitch chain roller. If utilizing a standard sprocket, failing to engage will result in chain jumping along with excessive wear. Something vital that you note is 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 typical roller chain sprocket. This rule does not apply to carrier roller style chains which where the roller diameter exceeds the sidebar height, these chain sizes include C2042, C2052, C2062, C2062H, C2082H, C2102H, C2122H, and C2162H.
2042A16 Sprocket