January 14, 2021

Double Pitch roller chains are generated in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain specifications. Generally these chains are related to ASME/ANSI normal solutions except that the pitch is double. They may be accessible in Transmission Series, Conveyor Series with Standard (small) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often applied on drives with slow to moderate speeds, lower chain loads and prolonged center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by adding 2000 towards the ASME/ANSI chain amount plus the prefi x letter ?¡ãA?¡À. Note that some providers don’t use a prefi x letter for this series so the chains may perhaps be represented as A2040, A2050 and so on. or 2040, 2050 and so forth.
Conveyor Series with Normal (modest) Rollers
This series is usually used on light to reasonable load materials dealing with conveyors with or without having attachment hyperlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series link plates (i.e. link plates with the subsequent larger chain size. The chain quantity is identified by adding 2000 on the ASME/ANSI chain quantity as well as prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess substantial rollers in order that the chain rolls on a conveyor track minimizing friction. Chain numbers are observed inside the identical way as noted over except that the final digit around the chain quantity is changed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the huge roller.
In general sprockets ought to be developed specially for these chains in accordance for the ASME/ANSI B29.3 and B29.four requirements however, for Transmission Series and Conveyor Series with Normal (compact) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets might be utilized offered the quantity of teeth is 30 or much more.