Double Pitch roller chains are created in accordance with all the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain requirements. Generally these chains are equivalent to ASME/ANSI conventional products except the pitch is double. They’re offered in Transmission Series, Conveyor Series with Conventional (compact) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often used on drives with slow to moderate speeds, minimal chain loads and extended center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain number is obtained by adding 2000 towards the ASME/ANSI chain quantity as well as the prefi x letter ?¡ãA?¡À. Note that some providers never use a prefi x letter for this series so the chains may be represented as A2040, A2050 and so forth. or 2040, 2050 and so forth.
Conveyor Series with Conventional (little) Rollers
This series is often employed on light to moderate load materials managing conveyors with or without the need of attachment backlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series hyperlink plates (i.e. link plates from the up coming bigger chain size. The chain quantity is uncovered by incorporating 2000 for the ASME/ANSI chain amount plus the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess substantial rollers so that the chain rolls on the conveyor track reducing friction. Chain numbers are identified within the identical way as noted over except that 
the final digit to the chain amount is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
Sprockets
Normally sprockets must be developed specially for these chains in accordance towards the ASME/ANSI B29.3 and B29.four specifications nonetheless, for Transmission Series and Conveyor Series with Common (compact) Rollers, ASME/ANSI B29.1 Conventional roller chain sprockets could be employed supplied the amount of teeth is 30 or more.
