Double Pitch roller chains are generated in accordance with the ASME/ANSI B29.three (Transmission Series) and B29.four (Conveyor Series) American roller chain standards. Generally these chains are similar to ASME/ANSI typical merchandise except the pitch is double. These are readily available in Transmission Series, Conveyor Series with Normal (tiny) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often utilised on drives with slow to moderate speeds, lower chain loads and extended center distances. Side plates possess a fi gure ?¡ã8?¡À contour. The chain amount is obtained by adding 2000 on the ASME/ANSI chain number as well as prefi x letter ?¡ãA?¡À. Note that some corporations tend not to use a prefi x letter for this series so the chains may perhaps be represented as A2040, A2050 and so forth. or 2040, 2050 and so on.
Conveyor Series with Conventional (small) Rollers
This series is usually applied on light to reasonable load material managing conveyors with or with out attachment hyperlinks. 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. hyperlink plates on the next more substantial chain dimension. The chain amount is uncovered by incorporating 2000 towards the ASME/ANSI chain variety and also the prefi x letter ?¡ãC?¡À. Chains using the ?¡ãheavy?¡À kind side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Huge (oversized) Rollers
These chains possess massive rollers to ensure the chain rolls on a conveyor track decreasing friction. Chain numbers are identified while in the identical way as noted above except the last digit about the chain quantity is changed from ?¡ã0?¡À to ?¡ã2?¡À which denotes the significant roller.
In general sprockets should be generated specially for these chains according on the ASME/ANSI B29.three and B29.four requirements even so, for Transmission Series and Conveyor Series with Common (compact) Rollers, ASME/ANSI Standard roller chain sprockets may perhaps be employed offered the amount of teeth is 30 or extra.