The overall width of the roller chain is the measurement a in the drawing above.
Links in a chain measurement.
You can use either of these two methods.
Get the gauge measurement of the chain either by finding it on the tool in the user manual or by measuring the thickness of the chain s drive links with very.
You re probably used to ordering products with at least two dimensions such as the length and waist size of your jeans.
How to measure roller chain whether you re building something from scratch or making an update to an existing project finding the right size for your roller chain is a critical first decision.
Chain link openings can vary based on your particular need and the size of your project.
The chain is a unit of length equal to 66 feet 22 yards it is subdivided into 100 links or 4 rods there are 10 chains in a furlong and 80 chains in one statute mile.
The correct chain length chain rivet.
Please make sure that you are not measuring the overall width of the master link and or offset link when you are taking this measurement.
Get the pitch measurement of the chain either by finding it on the tool in the user manual or dividing the distance between 3 links by 2 recommended that this be done by a shop.
Size to old chain count links if your old chain was sized correctly it can be used to determine the length of your new chain.
The link usually abbreviated as l li or lnk sometimes called a gunter s link is a unit of length formerly used in many english speaking countries.
To check if it was the correct size shift the bike to the smallest sprockets and check the chain for any slack.
Follow our easy to read roller chain size chart for your industrial applications.
The gypsy being the sprocket that grabs the chain links.
Confusion doesn t rule the day when roller chain sizes are detailed in every dimension possible at usa roller chain.
Methods to determine chain length method 1.
In us customary units modern definition the link is exactly 66 100 of a us survey foot or exactly 7 92 inches or approximately 20 12 cm.
In metric terms it is 20 1168 m long.
All you need are a chain rivet or a chain lock and you will need to know the amount of chain links needed for a correct chain length.
How to measure roller chain video instructions.
It really isn t too difficult to get the chain length right.
Compare diameter width and thickness as you find drive chain sizes that move your machinery in the right direction.
Master link pliers to disengage chains with master links.
Use chains outside the size range and it general leads to tears and a decreased bank account but it can also lead to things exploding and potentially bodily harm sure.
In order to accurately measure roller chain you ll need to know the overall width diameter and width of the roller plate thickness and height.
Like most sprockets they are made to accept one or a small range of chains within specific measurement requirements.
The unit is based on gunter s chain a metal chain 66 feet long with 100 links that was.
Take your old chain and lay it out next to the new one.
