Double Pitch roller chains are created in accordance using the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. Usually these chains are related to ASME/ANSI common goods except the pitch is double. They can be accessible in Transmission Series, Conveyor Series with Common (smaller) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to reasonable speeds, minimal chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain quantity is obtained by adding 2000 towards the ASME/ANSI chain number and also the prefi x letter ?¡ãA?¡À. Note that some corporations usually do not use a prefi x letter for this series so the chains could be represented as A2040, A2050 etc. or 2040, 2050 and so on.
Conveyor Series with Common (small) Rollers
This series is often made use of on light to moderate load materials handling conveyors with or with out attachment backlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and more substantial have ?¡ãHeavy?¡À series link plates (i.e. hyperlink plates from the upcoming larger chain size. The chain variety is discovered by adding 2000 to your ASME/ANSI chain amount plus the prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Substantial (oversized) Rollers
These chains possess huge rollers to ensure that the chain rolls on the conveyor track reducing friction. Chain numbers are discovered within the very same way as mentioned over except the last digit within the chain number is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
Sprockets
On the whole sprockets should be made specially for these chains in accordance to your ASME/ANSI B29.3 and B29.four specifications even so, 
for Transmission Series and Conveyor Series with Regular (smaller) Rollers, ASME/ANSI B29.1 Regular roller chain sprockets may well be employed offered the amount of teeth is thirty or more.
