Sintered Bushing Roller Chain (UR/ URN)

Maintenance totally free chains utilizing sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain suitable to a place wherever lubrication is difficult. It makes use of bushings manufactured of the sintered alloy which impregnates lubricating oil.
For the use that demands clean look, rustless type (URN) is accessible.
Proposed employs
?Situations where lubrication is difficult or elongation of chain regularly occurs Remarks for use.
?Don’t 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 when a large affect is applied to a chain.
?Set the chain feeding velocity at 150m/min. or reduced.
Choice of chains
As for sintered bushing roller chains, the inner plates are thicker as well as pins are longer than those of conventional roller chains in order to compensate to the strength lowered by the use of sintered bushings.
For picking a suitable chain, refer to “Selection of Chains”. Utilize the tables of optimum kilowatt ratings for sintered bushing roller chains that cover lower pace ranges.
For sintered bushing roller chains, “Low-speed selection” can not be applied since the “Maximum allowable load” inside the dimension table considers only the chain tensile stress and neglects the bushing power.
Connecting backlinks and offset links
For sintered bushing roller chain, R connecting links are applied for DID60 or smaller sized, and C connecting hyperlinks for DID80 or greater.
OJ is often made use of as offset back links. Please location an purchase the connecting backlinks and offset backlinks specifying the variety for sintered bushing roller chain.
In the tables of maximum kilowatt ratings, the strength of your connecting links and offset links are taken into consideration.
Sprockets
Common sprockets might be employed for sintered bushing roller chains.