Double Pitch roller chains are made in accordance with all the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain requirements. Normally these chains are related to ASME/ANSI conventional merchandise except that the pitch is double. They can be available in Transmission Series, Conveyor Series with Normal (smaller) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often used on drives with slow to moderate speeds, reduced chain loads and long center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by incorporating 2000 to the ASME/ANSI chain amount as well as prefi x letter ?¡ãA?¡À. Note that some providers do not use a prefi x letter for this series so the chains might be represented as A2040, A2050 etc. or 2040, 2050 etc.
Conveyor Series with Common (compact) Rollers
This series is usually employed on light to moderate load material dealing with conveyors with or without attachment links. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and greater have ?¡ãHeavy?¡À series link plates (i.e. link plates of the following bigger chain dimension. The chain amount is discovered by incorporating 2000 towards the ASME/ANSI chain variety and 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 Big (oversized) Rollers
These chains possess large rollers in order that the chain rolls on a conveyor track cutting down friction. Chain numbers are discovered from the very same way as mentioned over except that the last digit to the chain amount is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
In general sprockets really should be developed specially for these chains according on the ASME/ANSI B29.three and B29.four specifications nonetheless, for Transmission Series and Conveyor Series with Common (modest) Rollers, ASME/ANSI Common roller chain sprockets may be utilized supplied the quantity of teeth is 30 or much more.