Double Pitch roller chains are produced in accordance with the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain specifications. On the whole these chains are equivalent to ASME/ANSI conventional products except the pitch is double. These are obtainable in Transmission Series, Conveyor Series with Normal (small) Rollers and Conveyor Series with Large (oversized) Rollers.
Transmission Series
This series is often made use of on drives with slow to moderate speeds, very low chain loads and lengthy center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by incorporating 2000 on the ASME/ANSI chain amount as well as 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 etc. or 2040, 2050 etc.
Conveyor Series with Regular (tiny) Rollers
This series is usually applied on light to moderate load material dealing with conveyors with or without the need of attachment backlinks. 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 on the following bigger chain size. The chain variety is uncovered by incorporating 2000 to the ASME/ANSI chain variety along with 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 massive rollers to ensure the chain rolls on the conveyor track reducing friction. Chain numbers are uncovered inside the similar way as noted above except that the final digit around the chain number is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
Generally sprockets should be produced specially for these chains in accordance for the ASME/ANSI B29.3 and B29.4 specifications having said that, for Transmission Series and Conveyor Series with Common (compact) Rollers, ASME/ANSI Typical roller chain sprockets might be used provided the quantity of teeth is 30 or much more.