Double Pitch roller chains are developed in accordance using the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain specifications. Usually these chains are comparable to ASME/ANSI common merchandise except the pitch is double. They are really accessible in Transmission Series, Conveyor Series with Regular (smaller) Rollers and Conveyor Series with Substantial (oversized) Rollers.
Transmission Series
This series is often utilised on drives with slow to reasonable speeds, low chain loads and prolonged center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain quantity is obtained by including 2000 towards the ASME/ANSI chain quantity and also the prefi x letter ?¡ãA?¡À. Note that some businesses usually do not use a prefi x letter for this series so the chains may well be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Common (tiny) Rollers
This series is often utilized on light to reasonable load material managing 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 greater have ?¡ãHeavy?¡À series hyperlink plates (i.e. hyperlink plates on the upcoming bigger chain size. The chain number is discovered by incorporating 2000 to your ASME/ANSI chain number plus the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess huge rollers in order that the chain rolls on a conveyor track lowering friction. Chain numbers are discovered from the very same way as noted over except the last digit over the chain number is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
Usually sprockets should be produced specially for these chains in accordance towards the ASME/ANSI B29.three and B29.4 specifications having said that, for Transmission Series and Conveyor Series with Regular (tiny) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets may well be applied offered the quantity of teeth is thirty or a lot more.