Double Pitch roller chains are developed in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. Normally these chains are very similar to ASME/ANSI conventional solutions except that the pitch is double. They can be offered in Transmission Series, Conveyor Series with Standard (small) Rollers and Conveyor Series with Substantial (oversized) Rollers.
Transmission Series
This series is usually utilized on drives with slow to moderate speeds, low chain loads and prolonged center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 on the ASME/ANSI chain amount along with the prefi x letter ?¡ãA?¡À. Note that some corporations do not use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 and so on. or 2040, 2050 and so forth.
Conveyor Series with Typical (smaller) Rollers
This series is usually used on light to reasonable load material handling 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 more substantial have ?¡ãHeavy?¡À series hyperlink plates (i.e. website link plates of the following more substantial chain dimension. The chain amount is found by adding 2000 for the ASME/ANSI chain number as well as the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À sort side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Substantial (oversized) Rollers
These chains possess large rollers to ensure the chain rolls on the conveyor track minimizing friction. Chain numbers are uncovered during the exact same way as noted above except that the last digit about the chain variety is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
Generally sprockets needs to be generated specially for these chains in accordance to the ASME/ANSI B29.3 and B29.4 standards even so, for Transmission Series and Conveyor Series with Typical (modest) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets may be used provided the quantity of teeth is thirty or additional.