Normally, conveyor chains are operated for longer distances and at lower speeds than transmission chains. Accordingly, even though the pins, bushings and rollers are left unchanged, plus the plate pitch is doubled to reduce the number of sprocket teeth engaged using the chain to half, the wear of pins, bushings and rollers is smaller because the chain velocity is very low. Double Pitch Chains, conform to ANSI standard and “Ultimate Lifestyle Chain Series” and “Environment Resistant Chain Series”, as are single pitch chains can also be readily available.
Double pitch chain with resin rollers
This can be a Double Pitch Chain with R Roller made from resin, which generates much less noise and lighter fat in contrast with steel rollers. Thus, the chain is ideal for a conveyor technique created to operate quietly and convey light-weight articles. Because the parts apart from rollers are manufactured from steel, the common tensile strength of a resin roller chain could be the same as that of the steel roller chain. Even so, the “maximum allowable load” of the chain ought to be kept decrease, as shown during the following table, to stop injury towards the plastic rollers through the strain through the engagement with sprockets.
The “Allowable load of resin rollers” refers towards the allowable load acting when conveyed articles or blog posts press the resin rollers traveling within the floor surface such as guid rails.
Big roller (R) and tiny rollers (S)
Because double pitch chains are regularly applied for conveying products on a horizontal floor, chains developed for this objective have greater roller diameter equal to that of single pitch chains with the exact same pitch for improved load capacity and lower traveling resistance. These rollers with greater outer diameter are identified as “large rollers”, as well as the regular rollers are called “small rollers”.
In this catalog, significant rollers are expressed as R Roller, and small rollers as S Roller.
Designation of double pitch chains
A double pitch chain is designated, as from the following illustration, based on the nominal quantity of the single pitch chain it is actually dependant on.
Connecting links
For the connecting links of double pitch chains of all sizes, the connecting plates and connecting pins are clearance-fitted. For C2060H or smaller sized, the spring clip sort (R connecting website link) is common. For C2080H or bigger, the cotter type (C connecting website link) is regular. Connecting links with an attachment, major roller or side roller are also obtainable.