Double Pitch roller chains are made in accordance with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain requirements. On the whole these chains are very similar to ASME/ANSI regular items except that the pitch is double. They can be available in Transmission Series, Conveyor Series with Conventional (modest) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to reasonable speeds, very low chain loads and extended center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by adding 2000 to the ASME/ANSI chain number as well as prefi x letter ?¡ãA?¡À. Note that some companies don’t use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Normal (small) Rollers
This series is often used on light to reasonable load material managing conveyors with or with no attachment hyperlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and bigger have ?¡ãHeavy?¡À series link plates (i.e. link plates in the up coming larger chain size. The chain variety is uncovered by including 2000 on the ASME/ANSI chain variety as well as the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À sort side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Significant (oversized) Rollers
These chains possess big rollers to ensure that the chain rolls on a conveyor track reducing friction. Chain numbers are found inside the exact same way as mentioned above except the final digit to the chain variety is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
On the whole sprockets really should be generated specially for these chains according to the ASME/ANSI B29.three and B29.four requirements even so, for Transmission Series and Conveyor Series with Standard (small) Rollers, ASME/ANSI Common roller chain sprockets could be employed supplied the amount of teeth is 30 or more.