January 6, 2021

On the whole, conveyor chains are operated for longer distances and at reduced speeds than transmission chains. Accordingly, even though the pins, bushings and rollers are left unchanged, as well as plate pitch is doubled to reduce the number of sprocket teeth engaged using the chain to half, the put on of pins, bushings and rollers is little because the chain velocity is very low. Double Pitch Chains, conform to ANSI regular and “Ultimate Lifestyle Chain Series” and “Environment Resistant Chain Series”, as are single pitch chains can also be out there.
Double pitch chain with resin rollers
This can be a Double Pitch Chain with R Roller made of resin, which generates much less noise and lighter weight compared with steel rollers. As a result, the chain is ideal to get a conveyor system designed to operate quietly and convey light-weight articles. Since the components besides rollers are manufactured from steel, the common tensile strength of the resin roller chain could be the similar as that of a steel roller chain. However, the “maximum allowable load” of your chain needs to be stored reduced, as shown within the following table, to avoid harm to the plastic rollers by the pressure in the engagement with sprockets.
The “Allowable load of resin rollers” refers to the allowable load acting when conveyed articles press the resin rollers traveling over the floor surface this kind of as guid rails.
Large roller (R) and modest rollers (S)
Due to the fact double pitch chains are frequently applied for conveying products on the horizontal floor, chains built for this objective have increased roller diameter equal to that of single pitch chains of the similar pitch for elevated load capacity and reduced traveling resistance. These rollers with larger outer diameter are named “large rollers”, plus the standard rollers are termed “small rollers”.
On this catalog, big rollers are expressed as R Roller, and modest rollers as S Roller.
Designation of double pitch chains
A double pitch chain is designated, as while in the following illustration, based on the nominal amount of the single pitch chain it really is based upon.
Connecting links
To the connecting back 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 variety (R connecting link) is normal. For C2080H or bigger, the cotter sort (C connecting hyperlink) is regular. Connecting links with an attachment, leading roller or side roller may also be available.