Normally, conveyor chains are operated for longer distances and at reduced speeds than transmission chains. Accordingly, although the pins, bushings and rollers are left unchanged, as well as the plate pitch is doubled to reduce the quantity of sprocket teeth engaged together with the chain to half, the dress in of pins, bushings and rollers is smaller since the chain pace is reduced. Double Pitch Chains, conform to ANSI standard and “Ultimate Existence Chain Series” and “Environment Resistant Chain Series”, as are single pitch chains may also be accessible.
Double pitch chain with resin rollers
It is a Double Pitch Chain with R Roller manufactured from resin, which generates less noise and lighter excess weight in contrast with 
steel rollers. So, the chain is ideal to get a conveyor procedure created to operate quietly and convey light-weight posts. Because the elements besides rollers are made from steel, the common tensile strength of the resin roller chain is definitely the very same as that of a steel roller chain. However, the “maximum allowable load” on the chain need to be kept reduce, as shown inside the following table, to avoid damage for the plastic rollers by the stress through the engagement with sprockets.
The “Allowable load of resin rollers” refers on the allowable load acting when conveyed posts press the resin rollers traveling within the floor surface this kind of as guid rails.
Huge roller (R) and tiny rollers (S)
Considering that double pitch chains are regularly used for conveying products on a horizontal floor, chains developed for this objective have enhanced roller diameter equal to that of single pitch chains of your similar pitch for improved load capability and decrease traveling resistance. These rollers with larger outer diameter are known as “large rollers”, and also the regular rollers are named “small rollers”.
On this catalog, substantial rollers are expressed as R Roller, and tiny rollers as S Roller.
Designation of double pitch chains
A double pitch chain is designated, as in the following example, depending on the nominal number of the single pitch chain it is depending on.
Connecting hyperlinks
For that connecting hyperlinks of double pitch chains of all sizes, the connecting plates and connecting pins are clearance-fitted. For C2060H or smaller sized, the spring clip form (R connecting link) is normal. For C2080H or greater, the cotter kind (C connecting hyperlink) is regular. Connecting backlinks with an attachment, top roller or side roller can also be available.
