Double Pitch roller chains are made in accordance using the ASME/ANSI B29.three (Transmission Series) and B29.4 (Conveyor Series) American roller chain specifications. On the whole these chains are comparable to ASME/ANSI regular merchandise except that the pitch is double. They may be offered in Transmission Series, Conveyor Series with Typical (little) Rollers and Conveyor Series with Huge (oversized) Rollers.
Transmission Series
This series is often made use of on drives with slow to reasonable speeds, very low chain loads and prolonged center distances. Side plates have a fi gure ?¡ã8?¡À contour. The chain number is obtained by including 2000 to the ASME/ANSI chain number plus the prefi x letter ?¡ãA?¡À. Note that some businesses 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 and so on.
Conveyor Series with Standard (tiny) Rollers
This series is usually applied on light to reasonable load materials handling conveyors with or with no attachment back links. The side plate contour is straight for enhanced sliding properties. Pitch sizes of 1-1/2?¡À and more substantial have ?¡ãHeavy?¡À series hyperlink plates (i.e. link plates of your upcoming greater chain dimension. The chain number is found by incorporating 2000 for the ASME/ANSI chain amount plus 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 Big (oversized) Rollers
These chains possess huge rollers in order that the chain rolls on a conveyor track decreasing friction. Chain numbers are identified while in the very same way as mentioned over except that the last digit around the chain variety is modified from ?¡ã0?¡À to ?¡ã2?¡À which denotes the massive roller.
In general sprockets must be developed specially for these chains in accordance to your ASME/ANSI B29.three and B29.four standards nevertheless, for Transmission Series and Conveyor Series with Typical (compact) Rollers, ASME/ANSI B29.1 Typical roller chain sprockets may be applied provided the amount of teeth is 30 or far more.