Generally, conveyor chains are operated for longer distances and at decrease speeds than transmission chains. Accordingly, while the pins, bushings and rollers are left unchanged, as well as plate pitch is doubled to cut back the quantity of sprocket teeth engaged together with the chain to half, the wear of pins, bushings and rollers is little since the chain speed is minimal. Double Pitch Chains, conform to ANSI conventional and “Ultimate Existence Chain Series” and “Environment Resistant Chain Series”, as are single pitch chains can also be available.
Double pitch chain with resin rollers
This is a Double Pitch Chain with R Roller made from resin, which generates less noise and lighter weight compared with steel rollers. As a result, the chain is suitable for a conveyor system intended to operate quietly and convey light-weight posts. Because the parts other than rollers are manufactured from steel, the average tensile power of a resin roller chain would be the same as that of a steel roller chain. However, the “maximum allowable load” in the chain needs to be stored reduce, as proven while in the following table, to stop injury to the plastic rollers from the strain from your engagement with sprockets.
The “Allowable load of resin rollers” refers on the allowable load acting when conveyed articles press the resin rollers traveling on the floor surface this kind of as guid rails.
Massive roller (R) and little rollers (S)
Due to the fact double pitch chains are usually made use of for conveying merchandise on a horizontal floor, chains made for this goal have improved roller diameter equal to that of single pitch chains on the same pitch for increased load capacity and decrease traveling 
resistance. These rollers with larger outer diameter are called “large rollers”, as well as the standard rollers are named “small rollers”.
Within this catalog, significant rollers are expressed as R Roller, and little rollers as S Roller.
Designation of double pitch chains
A double pitch chain is designated, as in the following illustration, depending on the nominal quantity of the single pitch chain it can be depending on.
Connecting hyperlinks
To the connecting backlinks of double pitch chains of all sizes, the connecting plates and connecting pins are clearance-fitted. For C2060H or smaller, the spring clip variety (R connecting link) is standard. For C2080H or greater, the cotter form (C connecting website link) is common. Connecting back links with an attachment, prime roller or side roller may also be accessible.
