Double Pitch roller chains are produced in accordance with all the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. Generally these chains are comparable to ASME/ANSI regular merchandise except that the pitch is double. They are really offered in Transmission Series, Conveyor Series with Normal (little) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to reasonable speeds, lower chain loads and lengthy center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by incorporating 2000 for the ASME/ANSI chain variety and the prefi x letter ?¡ãA?¡À. Note that some organizations do not use a prefi x letter for this series so the chains could be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Common (tiny) Rollers
This series is often utilized on light to reasonable load materials managing conveyors with or without having attachment back 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. link plates on the upcoming more substantial chain size. The chain quantity is discovered by incorporating 2000 to the ASME/ANSI chain quantity plus the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Significant (oversized) Rollers
These chains possess huge rollers in order that the chain rolls on the conveyor track minimizing friction. Chain numbers are observed inside the exact same way as noted above except that the last digit about the chain amount is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
In general sprockets ought to be produced specially for these chains in accordance for the ASME/ANSI B29.three and B29.four requirements even so, for Transmission Series and Conveyor Series with Conventional (small) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets could be utilized offered the number of teeth is 30 or additional.