Double Pitch roller chains are made in accordance together with the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain standards. In general these chains are similar to ASME/ANSI normal merchandise except the pitch is double. They may be out there in Transmission Series, Conveyor Series with Standard (tiny) Rollers and Conveyor Series with Significant (oversized) Rollers.
Transmission Series
This series is often employed 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 amount is obtained by adding 2000 on the ASME/ANSI chain amount and the prefi x letter ?¡ãA?¡À. Note that some corporations do not 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 (little) Rollers
This series is often employed on light to moderate load materials handling conveyors with or devoid of attachment backlinks. The side plate contour is straight for improved sliding properties. Pitch sizes of 1-1/2?¡À and greater have ?¡ãHeavy?¡À series link plates (i.e. link plates with the up coming greater chain size. The chain variety is located by including 2000 towards the ASME/ANSI chain amount plus the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À form side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess huge rollers to ensure that the chain rolls on a conveyor track lowering friction. Chain numbers are uncovered in the exact same way as mentioned above except that the last digit within the chain quantity is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the substantial roller.
Sprockets
In general sprockets need to be developed specially for these chains according towards the ASME/ANSI B29.three and B29.4 requirements even so, for Transmission Series and Conveyor Series with Common (little) Rollers, ASME/ANSI B29.one Standard roller chain sprockets may be utilised offered the quantity of teeth is 30 or extra.