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 requirements. Usually these chains are very similar to ASME/ANSI conventional solutions except that the pitch is double. They can be obtainable in Transmission Series, Conveyor Series with Standard (smaller) Rollers and Conveyor Series with Significant (oversized) Rollers.
Transmission Series
This series is often applied on drives with slow to reasonable speeds, low chain loads and long center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by including 2000 for the ASME/ANSI chain number and also the prefi x letter ?¡ãA?¡À. Note that some organizations never use a prefi x letter for this series so the chains could be represented as A2040, A2050 and so forth. or 2040, 2050 and so on.
Conveyor Series with Typical (little) Rollers
This series is usually made use of on light to reasonable load material managing conveyors with or with out attachment back links. 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. hyperlink plates with the next larger chain size. The chain quantity is uncovered by incorporating 2000 towards the ASME/ANSI chain quantity and the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Substantial (oversized) Rollers
These chains possess huge rollers so that the chain rolls on the conveyor track cutting down friction. Chain numbers are uncovered in the very same way as mentioned above except that the final digit over the chain number is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Usually sprockets needs to be generated specially for these chains according for the ASME/ANSI B29.3 and B29.four standards however, for Transmission Series and Conveyor Series with Conventional (little) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets may be applied presented the number of teeth is 30 or additional.