Double Pitch roller chains are developed in accordance with the ASME/ANSI B29.3 (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. Generally these chains are comparable to ASME/ANSI standard goods except the pitch is double. They are really obtainable in Transmission Series, Conveyor Series with Standard (little) Rollers and Conveyor Series with Substantial (oversized) Rollers.
Transmission Series
This series is usually utilized on drives with slow to moderate speeds, very low chain loads and lengthy 
center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by including 2000 to your ASME/ANSI chain number and the prefi x letter ?¡ãA?¡À. Note that some companies don’t use a prefi x letter for this series so the chains may possibly be represented as A2040, A2050 and so forth. or 2040, 2050 and so forth.
Conveyor Series with Common (smaller) Rollers
This series is usually used on light to moderate load material handling conveyors with or without having attachment back links. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and bigger have ?¡ãHeavy?¡À series website link plates (i.e. link plates in the upcoming larger chain size. The chain quantity is uncovered by adding 2000 on the ASME/ANSI chain amount and also the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À variety 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 cutting down friction. Chain numbers are identified during the same way as noted above except that the final digit around the chain quantity is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the huge roller.
Sprockets
On the whole sprockets should be created specially for these chains according for the ASME/ANSI B29.three and B29.4 specifications even so, for Transmission Series and Conveyor Series with Common (little) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets may perhaps be applied supplied the number of teeth is 30 or more.
