Double Pitch roller chains are produced in accordance using the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. Normally these chains are similar to ASME/ANSI normal items except the pitch is double. They can be out there in Transmission Series, Conveyor Series with Typical (smaller) Rollers and Conveyor Series with Big (oversized) Rollers.
Transmission Series
This series is usually used on drives with slow to reasonable speeds, reduced chain loads and long center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain number is obtained by including 2000 towards the ASME/ANSI chain quantity along with the prefi x letter ?¡ãA?¡À. Note that some providers do not use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 etc. or 2040, 2050 and so on.
Conveyor Series with Conventional (compact) Rollers
This series is often employed on light to moderate load material dealing with conveyors with or devoid 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 in the upcoming more substantial chain size. The chain amount is uncovered by incorporating 2000 towards the ASME/ANSI chain quantity and also the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Significant (oversized) Rollers
These chains possess substantial rollers to ensure that the chain rolls on a conveyor track reducing friction. Chain numbers are located in the exact same way as noted above except that the last digit over the chain variety is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
On the whole sprockets ought to be developed specially for these chains according on the ASME/ANSI B29.3 and B29.four standards nevertheless, for Transmission Series and Conveyor Series with Regular (modest) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets could be utilised offered the amount of teeth is thirty or more.