Double Pitch roller chains are created in accordance with the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain specifications. Normally these chains are similar to ASME/ANSI standard items except that the pitch is double. They are obtainable in Transmission Series, Conveyor Series with Common (small) Rollers and Conveyor Series with Big (oversized) Rollers.
Transmission Series
This series is often applied on drives with slow to moderate speeds, lower chain loads and extended center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain variety is obtained by adding 2000 to your ASME/ANSI chain number along with the prefi x letter ?¡ãA?¡À. Note that some companies don’t use a prefi x letter for this series so the chains may be represented as A2040, A2050 and so on. or 2040, 2050 and so on. 
Conveyor Series with Conventional (little) Rollers
This series is usually utilised on light to reasonable load materials handling conveyors with or without having attachment back links. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and greater have ?¡ãHeavy?¡À series link plates (i.e. link plates on the following bigger chain dimension. The chain variety is uncovered by incorporating 2000 towards the ASME/ANSI chain amount along with the prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess big rollers to ensure that the chain rolls on the conveyor track reducing friction. Chain numbers are found inside the identical way as mentioned above except the last digit on the chain amount is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the huge roller.
Sprockets
Usually sprockets needs to be made specially for these chains in accordance on the ASME/ANSI B29.3 and B29.four standards however, for Transmission Series and Conveyor Series with Common (smaller) Rollers, ASME/ANSI B29.1 Common roller chain sprockets may perhaps be utilised presented the amount of teeth is thirty or a lot more.
