Double Pitch roller chains are developed in accordance with all the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. On the whole these chains are comparable to ASME/ANSI conventional solutions except the pitch is double. They are out there in Transmission Series, Conveyor Series with Typical (compact) Rollers and Conveyor Series with Large (oversized) Rollers.
Transmission Series
This series is usually applied on drives with slow to reasonable speeds, reduced chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 for the ASME/ANSI chain variety as well as the prefi x letter ?¡ãA?¡À. Note that some firms do not use a prefi x letter for this series so the chains may well be represented as A2040, A2050 and so forth. or 2040, 2050 and so on.
Conveyor Series with Standard (compact) Rollers
This series is often applied on light to moderate load material handling conveyors with or with no attachment backlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and bigger have ?¡ãHeavy?¡À series hyperlink plates (i.e. hyperlink plates with the following larger chain size. The chain variety is discovered by including 2000 for the ASME/ANSI chain quantity as well as prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess large rollers to ensure the chain rolls on the conveyor track cutting down friction. Chain numbers are identified from the very same way as mentioned above except that the final digit within the chain amount is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
Usually sprockets need to be created specially for these chains in accordance to the ASME/ANSI B29.3 and B29.4 specifications however, for Transmission Series and Conveyor Series with Conventional (modest) Rollers, ASME/ANSI B29.1 Common roller chain sprockets may possibly be used offered the number of teeth is thirty or extra.