Double Pitch roller chains are produced in accordance with the ASME/ANSI B29.3 (Transmission Series) and B29.four (Conveyor Series) American roller chain requirements. In general these chains are similar to ASME/ANSI regular merchandise except the pitch is double. They may be available in Transmission Series, Conveyor Series with Regular (smaller) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to reasonable speeds, reduced chain loads and lengthy center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain quantity is obtained by incorporating 2000 to the ASME/ANSI chain number and the prefi x letter ?¡ãA?¡À. Note that some businesses tend not to use a prefi x letter for this series so the chains may well be represented as A2040, A2050 and so forth. or 2040, 2050 and so on.
Conveyor Series with Typical (smaller) Rollers
This series is often used on light to moderate load materials 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 more substantial have ?¡ãHeavy?¡À series link plates (i.e. hyperlink plates of your next bigger chain size. The chain variety is discovered by including 2000 on the ASME/ANSI chain number as well as the prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Massive (oversized) Rollers
These chains possess large rollers in order that the chain rolls on the conveyor track lowering friction. Chain numbers are uncovered in the same way as noted above except that the last digit within the chain quantity is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
Sprockets
Usually sprockets ought to be made specially for these chains according on the ASME/ANSI B29.3 and B29.four requirements even so, for Transmission Series and Conveyor Series with Regular (little) Rollers, ASME/ANSI B29.one Conventional roller chain sprockets may possibly be utilized provided the number of teeth is 30 or much more.