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 comparable to ASME/ANSI conventional items except the pitch is double. They can be offered in Transmission Series, Conveyor Series with Standard (modest) Rollers and Conveyor Series with Significant (oversized) Rollers.
Transmission Series
This series is usually used on drives with slow to moderate speeds, minimal chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by adding 2000 towards the ASME/ANSI chain amount as well as prefi x letter ?¡ãA?¡À. Note that some organizations do not use a prefi x letter for this series so the chains might be represented as A2040, A2050 and so forth. or 2040, 2050 and so forth.
Conveyor Series with Regular (little) Rollers
This series is usually utilized on light to moderate load materials dealing with conveyors with or without the need of attachment links. 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. hyperlink plates with the upcoming greater chain dimension. The chain amount is found by adding 2000 to the ASME/ANSI chain number as well as the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Huge (oversized) Rollers
These chains possess significant rollers so that the chain rolls on a conveyor track cutting down friction. Chain numbers are found within the exact same way as mentioned above except the final digit around the chain quantity is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Normally sprockets should be made specially for these chains in accordance for the ASME/ANSI B29.three and B29.4 standards nonetheless, for Transmission Series and Conveyor Series with Standard (modest) Rollers, ASME/ANSI B29.1 Normal roller chain sprockets may possibly be employed offered the quantity of teeth is 30 or a lot more.