Double Pitch roller chains are generated in accordance using the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain requirements. Usually these chains are similar to ASME/ANSI normal solutions except the pitch is double. These are accessible in Transmission Series, Conveyor Series with Regular (smaller) Rollers and Conveyor Series with Substantial (oversized) Rollers.
Transmission Series
This series is often applied on drives with slow to reasonable speeds, low chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by including 2000 on the ASME/ANSI chain amount and the prefi x letter ?¡ãA?¡À. Note that some businesses usually do not use a prefi x letter for this series so the chains may be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Common (modest) Rollers
This series is usually utilised on light to reasonable load material handling conveyors with or without the need of attachment hyperlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and more substantial have ?¡ãHeavy?¡À series hyperlink plates (i.e. hyperlink plates of your following bigger chain dimension. The chain number is discovered by incorporating 2000 to your ASME/ANSI chain number along with the prefi x letter 
?¡ãC?¡À. Chains with the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess huge rollers to ensure the chain rolls on a conveyor track minimizing friction. Chain numbers are located during the identical way as noted over except the last digit over the chain number is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the substantial roller.
Sprockets
Usually sprockets need to be produced specially for these chains in accordance for the ASME/ANSI B29.3 and B29.4 specifications having said that, for Transmission Series and Conveyor Series with Regular (tiny) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets may well be applied offered the quantity of teeth is 30 or far more.
