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 specifications. In general these chains are related to ASME/ANSI normal goods except the pitch is double. They are really accessible in Transmission Series, Conveyor Series with Common (tiny) Rollers and Conveyor Series with Massive (oversized) Rollers.
Transmission Series
This series is often made use of on drives with slow to moderate speeds, minimal chain loads and long center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 on the ASME/ANSI chain number as well as the prefi x letter ?¡ãA?¡À. Note that some organizations usually do not use a prefi x letter for this series so the chains could be represented as A2040, A2050 and so forth. or 2040, 2050 etc.
Conveyor Series with Regular (smaller) Rollers
This series is often made use of on light to moderate load material dealing with conveyors with or with out attachment backlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and more substantial have ?¡ãHeavy?¡À series hyperlink plates (i.e. link plates from the following larger chain size. The chain amount is located by adding 2000 for the ASME/ANSI chain variety as well as prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À variety side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Significant (oversized) Rollers
These chains possess huge rollers to ensure the chain rolls on a conveyor track cutting down friction. Chain numbers are discovered from the same way as noted above except the last digit to the chain quantity is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the substantial roller.
Sprockets
On the whole sprockets need to be created specially for these chains in accordance on the ASME/ANSI B29.three and B29.four requirements nevertheless, for Transmission Series and Conveyor Series with Typical (compact) Rollers, ASME/ANSI B29.1 Common roller chain sprockets may perhaps be used presented the amount of teeth is 30 or a lot more.