Double Pitch roller chains are developed in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. On the whole these chains are related to ASME/ANSI common merchandise except the pitch is 
double. They may be accessible in Transmission Series, Conveyor Series with Normal (small) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often utilised on drives with slow to reasonable speeds, lower chain loads and extended center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by adding 2000 to your ASME/ANSI chain variety along with the prefi x letter ?¡ãA?¡À. Note that some providers will not use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 and so forth. or 2040, 2050 etc.
Conveyor Series with Typical (smaller) Rollers
This series is often utilized on light to reasonable load material dealing with conveyors with or devoid of attachment hyperlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and bigger have ?¡ãHeavy?¡À series hyperlink plates (i.e. website link plates with the following greater chain dimension. The chain variety is discovered by incorporating 2000 to the ASME/ANSI chain quantity and also the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Substantial (oversized) Rollers
These chains possess big rollers so that the chain rolls on a conveyor track minimizing friction. Chain numbers are located in the exact same way as mentioned above except that the last digit around the chain variety is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
Sprockets
Usually sprockets should be developed specially for these chains in accordance on the ASME/ANSI B29.3 and B29.four requirements having said that, for Transmission Series and Conveyor Series with Conventional (small) Rollers, ASME/ANSI B29.one Regular roller chain sprockets may possibly be employed provided the quantity of teeth is thirty or much more.
