Sintered Bushing Roller Chain (UR/ URN)

Maintenance free chains employing sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain appropriate to a location in which lubrication is tricky. It employs bushings created of a sintered alloy which impregnates lubricating oil.
For the use that demands clean appearance, rustless kind (URN) is available.
Recommended utilizes
?Situations where lubrication is difficult or elongation of chain regularly occurs Remarks for use.
?Do 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 substantial influence is applied to a chain.
?Set the chain feeding pace at 150m/min. or reduce.
Selection of chains
As for sintered bushing roller chains, the inner plates are thicker as well as the pins are longer than individuals of regular roller chains in order to compensate for the strength lowered from the utilization of sintered bushings.
For picking out an appropriate chain, refer to “Selection of Chains”. Utilize the tables of highest kilowatt ratings for sintered bushing roller chains that cover very low speed ranges.
For sintered bushing roller chains, “Low-speed selection” can not be utilized since the “Maximum allowable load” in the dimension table considers only the chain tensile stress and neglects the bushing strength.
Connecting back links and offset backlinks
For sintered bushing roller chain, R connecting back links are made use of for DID60 or smaller sized, and C connecting links for DID80 or bigger.
OJ could be applied as offset back links. Please place an purchase the connecting links and offset backlinks specifying the style for sintered bushing roller chain.
While in the tables of highest kilowatt ratings, the strength from the connecting links and offset backlinks are taken into consideration.
Common sprockets might be utilised for sintered bushing roller chains.


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