Double Pitch roller chains are made in accordance with all the ASME/ANSI B29.3 (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. These are obtainable in Transmission Series, Conveyor Series with Common (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 long center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by adding 2000 to the ASME/ANSI chain variety and the prefi x letter ?¡ãA?¡À. Note that some firms do 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 Regular (small) Rollers
This series is usually used on light to reasonable load material dealing with conveyors with or without 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. hyperlink plates from the subsequent larger chain dimension. The chain quantity is observed by incorporating 2000 towards 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 Massive (oversized) Rollers
These chains possess big rollers to ensure that the chain rolls on a conveyor track lowering friction. Chain numbers are identified 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 substantial roller.
Sprockets
In general sprockets ought to be produced specially for these chains in accordance to your ASME/ANSI B29.3 and B29.four standards having said that, for Transmission Series and Conveyor Series with Typical (tiny) Rollers, ASME/ANSI B29.one Common roller chain sprockets may possibly be utilised supplied the number of teeth is 30 or extra.