Double Pitch roller chains are made in accordance with all the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. In general these chains are equivalent to ASME/ANSI common merchandise except that the pitch is double. They are really obtainable in Transmission Series, Conveyor Series with Typical (little) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is usually made use of on drives with slow to reasonable speeds, reduced chain loads and lengthy center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain quantity is obtained by including 2000 to the ASME/ANSI chain variety and the prefi x letter ?¡ãA?¡À. Note that some corporations don’t 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 Normal (little) Rollers
This series is usually utilized on light to reasonable load materials dealing with conveyors with or with out attachment backlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series hyperlink plates (i.e. website link plates in the subsequent larger chain dimension. The chain quantity is observed by adding 2000 towards the ASME/ANSI chain variety and also the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Massive (oversized) Rollers
These chains possess huge rollers to ensure that the chain rolls on a conveyor track lowering friction. Chain numbers are located during the exact same way as mentioned over except the last digit on the chain quantity is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
Sprockets
In general sprockets ought to be produced specially for these chains in accordance to the ASME/ANSI B29.3 and B29.four standards however, for Transmission Series and Conveyor Series with Typical (tiny) Rollers, ASME/ANSI B29.one Common roller chain sprockets may possibly be applied supplied the number of teeth is 30 or extra.