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 specifications. In general these chains are equivalent to ASME/ANSI conventional products except that the pitch is double. They’re out there in Transmission Series, Conveyor Series with Regular (smaller) Rollers and Conveyor Series with Substantial (oversized) Rollers.
Transmission Series
This series is often employed on drives with slow to reasonable speeds, low chain loads and extended center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain amount is obtained by incorporating 2000 for the ASME/ANSI chain variety and the prefi x letter ?¡ãA?¡À. Note that some companies usually do not use a prefi x letter for this series so the chains may be represented as A2040, A2050 and so on. or 2040, 2050 etc.
Conveyor Series with Normal (modest) Rollers
This series is often utilised on light to reasonable load material dealing with conveyors with or without having 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. hyperlink plates from the subsequent greater chain dimension. The chain amount is discovered by adding 2000 to the ASME/ANSI chain number and also the prefi x letter ?¡ãC?¡À. Chains together with the ?¡ãheavy?¡À type side plates use a suffi x letter ?¡ãH?¡À.
Conveyor Series with Big (oversized) Rollers
These chains possess massive rollers so that the chain rolls on a conveyor track decreasing friction. Chain numbers are found within the same way as mentioned above except the final digit around the chain number is altered from ?¡ã0?¡À to ?¡ã2?¡À which denotes the big roller.
In general sprockets needs to be made specially for these chains according towards the ASME/ANSI B29.three and B29.four requirements on the other hand, for Transmission Series and Conveyor Series with Conventional (tiny) Rollers, ASME/ANSI Normal roller chain sprockets may perhaps be utilized supplied the number of teeth is 30 or more.