If your engagement between chain and sprockets gets to be defective or any component that causes excessive decline during the strength on the chain takes place, substitute the complete chain. When any in the following circumstances take place in the chain you use, change the whole chain to keep security.
Whenever a chain is worn close to the “Elongation limit of chain” .
?When a flaw or crack takes place within a plate.
?Whenever a flaw or crack or defective rotation of the roller is observed.
?Whenever a chain hyperlink 
is stiff.
?Whenever a pin has been rotated.
?When a pin is bent or otherwise deformed or whenever a plate is critically warped.
?When rust buildup prevents smooth bending from the chain.
?When diluted sulfuric acid or every other corrosive material is deposited.
If you are not able to judge whether or not a flaw is “harmful”, please check with us.
Replacement of sprockets and the way to buy
The lifestyle of sprockets is usually many instances the daily life of a chain, but when the teeth are worn simply because of insufficient lubrication or broken simply because of the shock load, and so forth., the sprockets should be replaced.
?When putting an order, please specify the next in case the chain No. is known.
1. Chain No. and variety of strands
2. Type of sprockets
3. Shaft hole diameter (d) (This can be not essential when you drill this hole; in this instance, drill a hole not exceeding the utmost shaft hole diameter.)
four. Number of teeth
5. Hub diameter (DH) and length (L) (inside the situation of non-standard sprockets)
six. Whether the tooth heads are hardened
Specify the following things, in case the chain No. is unknown
one. Tooth thickness (T)
two. Root diameter (DB) (Caliper diameter (DC) in the situation of odd-number teeth)
