Generally, conveyor chains are operated for longer distances and at lower speeds than transmission chains. Accordingly, despite the fact that the pins, bushings and rollers are left unchanged, and also the plate pitch is doubled to reduce the amount of sprocket teeth engaged with all the chain to half, the wear of pins, bushings and rollers is little because the chain velocity is reduced. Double Pitch Chains, conform to ANSI common and “Ultimate Daily life Chain Series” and “Environment Resistant Chain Series”, as are single pitch chains are also readily available.
Double pitch chain with resin rollers
This is a Double Pitch Chain with R Roller manufactured from resin, which generates significantly less noise and lighter excess weight compared with steel rollers. Therefore, the chain is suitable to get a conveyor program intended to operate quietly and convey light-weight articles. Because the parts aside from rollers are manufactured from steel, the average tensile strength of the resin roller chain could be the similar as that of a steel roller chain. However, the “maximum allowable load” on the chain need to be kept reduced, as proven during the following table, to avoid damage for the plastic rollers from the stress from your engagement with sprockets.
The “Allowable load of resin rollers” refers towards the allowable load acting when conveyed articles press the resin rollers traveling around the floor surface this kind of as guid rails.
Large roller (R) and small rollers (S)
Given that double pitch chains are regularly utilised for conveying goods on the horizontal floor, chains designed for this function have enhanced roller diameter equal to that of single pitch chains from the exact same pitch for enhanced load capacity and reduce traveling resistance. These rollers with greater outer diameter are termed “large rollers”, and also the standard rollers are known as “small rollers”.
In 
this catalog, massive rollers are expressed as R Roller, and compact rollers as S Roller.
Designation of double pitch chains
A double pitch chain is designated, as during the following instance, based on the nominal quantity of the single pitch chain it’s according to.
Connecting back links
For your connecting hyperlinks of double pitch chains of all sizes, the connecting plates and connecting pins are clearance-fitted. For C2060H or smaller, the spring clip form (R connecting website link) is standard. For C2080H or greater, the cotter type (C connecting website link) is typical. Connecting links with an attachment, leading roller or side roller can also be available.
