Double Pitch roller chains are made in accordance with all the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. Generally these chains are very similar to ASME/ANSI typical goods except that the pitch is double. They are really obtainable in Transmission Series, Conveyor Series with Normal (modest) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to moderate speeds, low chain loads and lengthy center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by incorporating 2000 for the ASME/ANSI chain variety plus the prefi x letter ?¡ãA?¡À. Note that some companies don’t use a prefi x letter for this series so the chains might be represented as A2040, A2050 etc. or 2040, 2050 and so on.
Conveyor Series with Conventional (smaller) Rollers
This series is often used on light to moderate load material handling conveyors with or without attachment hyperlinks. 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 with the subsequent bigger chain dimension. The chain number is located by adding 2000 on the ASME/ANSI chain variety as well as the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À kind 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 the conveyor track decreasing friction. Chain numbers are identified while in the identical way as mentioned above except that the last digit about the chain amount is changed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Sprockets
On the whole sprockets must be created specially for these chains according on the ASME/ANSI B29.three and B29.four standards nevertheless, for Transmission Series and Conveyor Series with Regular (little) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets may be utilized offered the number of teeth is 30 or a lot more.