Double Pitch roller chains are produced in accordance together with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. In general these chains are equivalent to ASME/ANSI standard merchandise except that the pitch is double. They’re available in Transmission Series, Conveyor Series with Normal (little) Rollers and Conveyor Series with Large (oversized) Rollers.
Transmission Series
This series is often utilised on drives with slow to moderate speeds, reduced chain loads and prolonged center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain number is obtained by including 2000 to your ASME/ANSI chain number plus the prefi x letter ?¡ãA?¡À. Note that some companies never use a prefi x letter for this series so the chains may perhaps be represented as A2040, A2050 and so on. or 2040, 2050 etc.
Conveyor Series with Regular (small) Rollers
This series is often employed on light to reasonable load material managing conveyors with or devoid of attachment backlinks. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and larger have ?¡ãHeavy?¡À series link plates (i.e. website link plates with the upcoming larger chain size. The chain amount is uncovered by adding 2000 on the ASME/ANSI chain variety as well as prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À kind side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Huge (oversized) Rollers
These chains possess huge rollers to ensure that the chain rolls on the conveyor track decreasing friction. Chain numbers are found within the similar way as noted above except that the last digit about the chain quantity is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the large roller.
Usually sprockets really should be created specially for these chains according on the ASME/ANSI B29.3 and B29.4 specifications having said that, for Transmission Series and Conveyor Series with Regular (modest) Rollers, ASME/ANSI B29.1 Standard roller chain sprockets may possibly be made use of presented the amount of teeth is 30 or a lot more.