Maintenance free chains making use of sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain ideal to a place where lubrication is tough. It utilizes bushings manufactured of the sintered alloy which impregnates lubricating oil.
For your use that demands clean visual appeal, rustless type (URN) is accessible.
Advisable utilizes
?Conditions wherever lubrication is complicated or elongation of chain commonly takes place Remarks for use.
?Never use this chain in dusty environments. In this kind of environments, use O-ring chains.
?This chain is for that use below light or medium load.Use O-ring chain whenever a substantial impact is utilized to a chain.
?Set the chain feeding velocity at 150m/min. or decrease.
Choice of chains
As for sintered bushing roller chains, the inner plates are thicker plus the pins are longer than these of normal roller chains in order to compensate for that strength lowered by the utilization of sintered bushings.
For selecting a suitable chain, refer to “Selection of Chains”. Utilize the tables of greatest kilowatt ratings for sintered bushing roller chains that cover lower velocity ranges.
For sintered bushing roller chains, “Low-speed selection” can’t be employed because the “Maximum allowable load” within the dimension table considers only the chain tensile stress and neglects the bushing strength.
Connecting backlinks and offset back links
For sintered bushing roller chain, R connecting links are 
made use of for DID60 or smaller sized, and C connecting back links for DID80 or larger.
OJ can be utilised as offset links. Please location an purchase the connecting hyperlinks and offset backlinks specifying the type for sintered bushing roller chain.
In the tables of optimum kilowatt ratings, the strength with the connecting links and offset back links are taken into account.
Sprockets
Common sprockets may be employed for sintered bushing roller chains.
