Double Pitch roller chains are developed in accordance together with the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. Generally these chains are very similar to ASME/ANSI conventional merchandise except that the pitch is double. They are really readily available in Transmission Series, Conveyor Series with Conventional (little) Rollers and Conveyor Series with Significant (oversized) Rollers.
Transmission Series
This series is usually utilised 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 including 2000 on the ASME/ANSI chain amount along with the prefi x letter ?¡ãA?¡À. Note that some companies never use a prefi x letter for this series so the chains may well be represented as A2040, A2050 and so forth. or 2040, 2050 etc.
Conveyor Series with Conventional (tiny) Rollers
This series is usually utilized on light to moderate load material dealing with conveyors with or with no attachment back links. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and bigger have ?¡ãHeavy?¡À series hyperlink plates (i.e. website link plates on the subsequent greater chain dimension. The chain quantity is located by including 2000 towards the ASME/ANSI chain variety and the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess significant rollers to ensure the chain rolls on the conveyor track lowering friction. Chain numbers are observed from the same way as noted above except the last digit to the chain amount is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
Sprockets
In general sprockets needs to be generated specially for these chains according towards the ASME/ANSI B29.three and B29.four standards having said that, for Transmission Series and Conveyor Series with Common (little) Rollers, ASME/ANSI B29.one Common roller chain sprockets may be applied provided the quantity of teeth is thirty or a lot more.