Double Pitch roller chains are developed in accordance with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. On the whole these chains are very similar to ASME/ANSI conventional solutions except that the pitch is double. These are offered in Transmission Series, Conveyor Series with Typical (little) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is usually made use of on drives with slow to reasonable speeds, very low chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by including 2000 to the ASME/ANSI chain variety plus the prefi x letter ?¡ãA?¡À. Note that some businesses will not use a prefi x letter for this series so the chains may perhaps be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Typical (compact) Rollers
This series is usually employed on light to moderate load material dealing with conveyors with or without the need of attachment backlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and greater have ?¡ãHeavy?¡À series website link plates (i.e. link plates with the upcoming more substantial chain size. The chain number is located by incorporating 2000 for the ASME/ANSI chain quantity and also the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess huge rollers so that the chain rolls on a conveyor track cutting down friction. Chain numbers are observed inside the exact same way as noted above except the final digit within the chain number is changed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
Generally sprockets ought to be developed specially for these chains in accordance to the ASME/ANSI B29.three and B29.four specifications however, for Transmission Series and Conveyor Series with Regular (little) Rollers, ASME/ANSI B29.1 Common roller chain sprockets may perhaps be applied supplied the number of teeth is 30 or far more.