Double Pitch roller chains are produced in accordance using the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. Usually these chains are comparable to ASME/ANSI regular items except the pitch is double. They can be available in Transmission Series, Conveyor Series with Normal (small) Rollers and Conveyor Series with Large (oversized) Rollers.
Transmission Series
This series is usually utilised on drives with slow to moderate speeds, low chain loads and prolonged center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by adding 2000 on the ASME/ANSI chain amount plus the prefi x letter ?¡ãA?¡À. Note that some organizations never use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 and so forth. or 2040, 2050 and so forth.
Conveyor Series with Standard (compact) Rollers
This series is often made use of on light to moderate load material handling conveyors with or without the need of 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. hyperlink plates of the next more substantial chain dimension. The chain number is identified by incorporating 2000 to your ASME/ANSI chain amount as well as prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess large rollers so that the chain rolls on the conveyor track decreasing friction. Chain numbers are discovered while in the same way as mentioned over except the final digit over the chain number is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
Sprockets
On the whole sprockets need to be generated specially for these chains according on the ASME/ANSI B29.3 and B29.4 specifications on the other hand, for Transmission Series and Conveyor Series with Common (small) Rollers, ASME/ANSI B29.1 Regular roller chain sprockets might be employed provided the quantity of teeth is 30 or far more.