Large multiple sprocket and chain drive - GIF

Large multiple sprocket and chain drive.

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Previously:

https://www.homemadetools.net/forum/...952#post217415
https://www.homemadetools.net/forum/...477#post162263
https://www.homemadetools.net/forum/...735#post128966
https://www.homemadetools.net/forum/...182#post130472
https://www.homemadetools.net/forum/...081#post130035

that is actually only a 2-sprocket drive with multiple rows. Judging by its pin-to-pin length it would have to be an engineering chain. the largest Standard ANSI chain has a 3 inch pitch or is called a 240 pitch. meaning there are 24 8ths of an inch from center to center of the pins
the 4-row chain in the gif looks to have about 110mm between the pins the nearest ANSI engineering chain if there were a designation would be 350 or 4.375" pitch. capable of around 2to 3000 design HP the small sprocket turning 200 RPM

I wondered how many HP that would be good for.

Ralph

Quote:

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Originally Posted by Ralphxyz

I wondered how many HP that would be good for.

Ralph

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It is a little difficult to put an exact figure on it not knowing the pitch the roller diameter the pin diameter the roller width and the side link plates thickness. and the small sprocket RPM
All roller chains larger than the ANSI 240- or 3-inch pitch are classed as engineering chain for a reason. They are engineered to specifically suit the application. For all I know it could be capable of many times the number I mentioned. the ANSI Design horsepower charts for standard roller chains have a significant FOS to them as well. Even at that if you are designing something requiring roller chain drives that are near the upper limits of the DHP for that chain pitch and small sprocket dia. for a given minimum RPM and engineer will often recommend the next larger pitch for long life running, especially if there is anticipated shock loading such as start up under full load. If there are to be space restrictions the engineer may sign off to 1 sized under ratted when gentle start up or unloaded conditions can be met. and you are able to accept a reduced service life.