Servicing absolutely free chains utilizing sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain appropriate to a location where lubrication is tricky. It employs bushings made of the sintered alloy which impregnates lubricating oil.
For that use that requires clean appearance, rustless form (URN) is obtainable.
Advised utilizes
?Conditions where lubrication is challenging or elongation of chain commonly occurs Remarks for use.
?Will not use this chain in dusty environments. In such environments, use O-ring chains.
?This chain is to the use under light or medium load.Use O-ring chain whenever a significant affect is applied to a chain.
?Set the chain feeding velocity at 150m/min. or reduce.
Variety of chains
As for sintered bushing roller chains, the inner plates are thicker and the pins are longer than these of regular roller chains in order to compensate to the strength lowered by the use of sintered bushings.
For choosing an appropriate chain, refer to “Selection of Chains”. Utilize the tables of optimum kilowatt ratings for sintered bushing roller chains that cover reduced velocity ranges.
For sintered bushing roller chains, “Low-speed selection” cannot be employed because the “Maximum allowable load” inside the dimension table considers only the chain tensile tension and neglects the bushing power.
Connecting back links and offset back links
For sintered bushing roller chain, R connecting links are applied for DID60 or smaller sized, and C connecting back links for DID80 or bigger.
OJ is often applied as offset links. Please area an buy the connecting back 
links and offset hyperlinks specifying the style for sintered bushing roller chain.
Inside the tables of optimum kilowatt ratings, the strength with the connecting links and offset links are taken under consideration.
Sprockets
Standard sprockets may be made use of for sintered bushing roller chains.
