Double Pitch roller chains are developed in accordance with all the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain requirements. In general these chains are equivalent to ASME/ANSI standard items except the pitch is double. They may be out there in Transmission Series, Conveyor Series with Standard (small) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often employed on drives with slow to moderate speeds, reduced chain loads and lengthy center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 towards the ASME/ANSI chain quantity as well as the prefi x letter ?¡ãA?¡À. Note that some firms do not use a prefi x letter for this series so the chains may perhaps be represented as A2040, A2050 and so on. or 2040, 2050 and so on.
Conveyor Series with Regular (little) Rollers
This series is usually applied on light to reasonable load material handling conveyors with or without attachment links. 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. link plates on the next larger chain size. The chain number is discovered by adding 2000 for the ASME/ANSI chain number along with the prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À kind side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Large (oversized) Rollers
These chains possess huge rollers to ensure that the chain rolls on a conveyor track decreasing friction. Chain numbers are located within the exact same way as mentioned over except that the final digit over the chain quantity is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the huge roller.
Sprockets
Usually sprockets ought to be made specially for these chains according to the ASME/ANSI B29.3 and B29.4 requirements on the other hand, for Transmission Series and Conveyor Series with Normal (smaller) Rollers, ASME/ANSI B29.one Typical roller chain sprockets may perhaps be utilized supplied the quantity of teeth is thirty or extra.