Double Pitch roller chains are made in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. Normally these chains are very similar to ASME/ANSI typical goods except that the pitch is double. They are obtainable in Transmission Series, Conveyor Series with Common (smaller) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often utilized on drives with slow to moderate speeds, reduced chain loads and lengthy center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by adding 2000 on the ASME/ANSI chain variety as well as prefi x letter ?¡ãA?¡À. Note that some businesses don’t use a prefi x letter for this series so the chains might be represented as A2040, A2050 etc. or 2040, 2050 and so on.
Conveyor Series with Conventional (smaller) Rollers
This series is often used on light to moderate load materials handling conveyors with or with out attachment hyperlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series link plates (i.e. website link plates with the subsequent bigger chain dimension. The chain quantity is located by adding 2000 on the ASME/ANSI chain number along with the prefi x letter ?¡ãC?¡À. Chains with the ?¡ãheavy?¡À kind side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess massive rollers so that the chain rolls on the conveyor track decreasing friction. Chain numbers are located while in the identical way as mentioned above except that the final digit about the chain variety is changed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Sprockets
On the whole sprockets really should be created specially for these chains according to your ASME/ANSI B29.three and B29.four requirements nevertheless, for Transmission Series and Conveyor Series with Regular (little) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets might be employed offered the number of teeth is 30 or a lot more.