Double Pitch roller chains are made in accordance with all the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. Normally these chains are related to ASME/ANSI common products except that the pitch is double. These are available in Transmission Series, Conveyor Series with Common (tiny) Rollers and Conveyor Series with Big (oversized) Rollers.
Transmission Series
This series is usually made use of on drives with slow to reasonable speeds, very low chain loads and long center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 towards the ASME/ANSI chain amount along with 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 on.
Conveyor Series with Common (tiny) Rollers
This series is often made use of on light to reasonable load material managing conveyors with or without the need of attachment links. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and more substantial have ?¡ãHeavy?¡À series link plates (i.e. website link plates on the next bigger chain size. The chain number is located by incorporating 2000 on the ASME/ANSI chain variety and also the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Significant (oversized) Rollers
These chains possess big rollers so that the chain rolls on the conveyor track reducing friction. Chain numbers are located inside the exact same way as mentioned over except that the final digit around the chain quantity is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
Sprockets
Normally sprockets needs to be produced specially for these chains according for the ASME/ANSI B29.three and B29.four standards nevertheless, for Transmission Series and Conveyor Series with Regular (little) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets may perhaps be used offered the quantity of teeth is thirty or much more.
