Sintered Bushing Roller Chain (UR/ URN)

Maintenance absolutely free chains using sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain suitable to a location where lubrication is hard. It uses bushings created of a sintered alloy which impregnates lubricating oil.
For your use that requires clean physical appearance, rustless kind (URN) is available.
Advised makes use of
?Circumstances exactly where lubrication is difficult or elongation of chain usually occurs Remarks for use.
?Never use this chain in dusty environments. In this kind of environments, use O-ring chains.
?This chain is for the use underneath light or medium load.Use O-ring chain when a significant impact is utilized to a chain.
?Set the chain feeding speed at 150m/min. or lower.
Selection of chains
As for sintered bushing roller chains, the inner plates are thicker as well as the pins are longer than these of conventional roller chains in order to compensate for that power lowered through the use 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 very low speed ranges.
For sintered bushing roller chains, “Low-speed selection” cannot be utilised because the “Maximum allowable load” within the dimension table considers only the chain tensile stress and neglects the bushing strength.
Connecting back links and offset back links
For sintered bushing roller chain, R connecting hyperlinks are utilised for DID60 or smaller sized, and C connecting backlinks for DID80 or greater.
OJ may be utilized as offset hyperlinks. Please area an order the connecting links and offset hyperlinks specifying the variety for sintered bushing roller chain.
While in the tables of optimum kilowatt ratings, the power from the connecting links and offset backlinks are taken into consideration.
Sprockets
Normal sprockets is often employed for sintered bushing roller chains.