Double Pitch roller chains are generated in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain requirements. Normally these chains are comparable to ASME/ANSI common merchandise except that the pitch is double. They may be accessible in Transmission Series, Conveyor Series with Regular (smaller) Rollers and Conveyor Series with Significant (oversized) Rollers.
Transmission Series
This series is often utilised on drives with slow to moderate speeds, lower chain loads and long center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by including 2000 towards the ASME/ANSI chain quantity along with the prefi x letter ?¡ãA?¡À. Note that some firms do not use a prefi x letter for this series so the chains may well be represented as A2040, A2050 and so forth. or 2040, 2050 etc.
Conveyor Series with Conventional (small) Rollers
This series is often utilised on light to reasonable load materials handling conveyors with or with no attachment links. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series website link plates (i.e. website link plates from the subsequent larger chain dimension. The chain 
amount is observed by including 2000 on the ASME/ANSI chain quantity and also the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Massive (oversized) Rollers
These chains possess big rollers in order that the chain rolls on the conveyor track minimizing friction. Chain numbers are located in the identical way as noted over except the final digit over the chain variety is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
Sprockets
In general sprockets really should be developed specially for these chains according towards the ASME/ANSI B29.three and B29.4 requirements on the other hand, for Transmission Series and Conveyor Series with Normal (smaller) Rollers, ASME/ANSI B29.1 Normal roller chain sprockets may perhaps be applied offered the amount of teeth is thirty or extra.
