Double Pitch roller chains are created in accordance with the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. Usually these chains are equivalent to ASME/ANSI regular merchandise except that the pitch is double. They’re offered in Transmission Series, Conveyor Series with Typical (tiny) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often used on drives with slow to reasonable speeds, very low chain loads and long center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain variety is obtained by including 2000 to the ASME/ANSI chain quantity along with the prefi x letter ?¡ãA?¡À. Note that some organizations usually do not use a prefi x letter for this series so the chains might be represented as A2040, A2050 and so on. or 2040, 2050 and so on.
Conveyor Series with Conventional (modest) Rollers
This series is usually made use of on light to reasonable load material dealing with 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 larger have ?¡ãHeavy?¡À series hyperlink plates (i.e. link plates with the next greater chain dimension. The chain number is discovered by adding 2000 on the ASME/ANSI chain amount along with the prefi x letter ?¡ãC?¡À. Chains with all the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Huge (oversized) Rollers
These chains possess big rollers to ensure that the chain rolls on a conveyor track lowering friction. Chain numbers are discovered while in the very same way as mentioned over except that the final digit on the chain variety is transformed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
Usually sprockets really should be made specially for these chains in accordance to the ASME/ANSI B29.three and B29.four requirements nevertheless, for Transmission Series and Conveyor Series with Typical (small) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets might be utilised supplied the amount of teeth is thirty or additional.