Sintered Bushing Roller Chain (UR/ URN)

Servicing free chains using sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain ideal to a location wherever lubrication is hard. It utilizes bushings made of the sintered alloy which impregnates lubricating oil.
For your use that demands clean appearance, rustless kind (URN) is accessible.
Recommended uses
?Conditions the place lubrication is difficult or elongation of chain regularly takes place Remarks for use.
?Don’t 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 whenever a huge impact is applied to a chain.
?Set the chain feeding velocity at 150m/min. or reduce.
Choice of chains
As for sintered bushing roller chains, the inner plates are thicker plus the pins are longer than those of common roller chains so as to compensate to the power lowered through the use of sintered bushings.
For deciding on an appropriate chain, refer to “Selection of Chains”. Utilize the tables of maximum kilowatt ratings for sintered bushing roller chains that cover very low pace ranges.
For sintered bushing roller chains, “Low-speed selection” are unable to be used because the “Maximum allowable load” during the dimension table considers only the chain tensile stress and neglects the bushing power.
Connecting links and offset hyperlinks
For sintered bushing roller chain, R connecting hyperlinks are employed for DID60 or smaller, and C connecting links for DID80 or larger.
OJ may be applied as offset links. Please area an order the connecting hyperlinks and offset hyperlinks specifying the kind for sintered bushing roller chain.
From the tables of maximum kilowatt ratings, the power on the connecting links and offset hyperlinks are taken under consideration.
Regular sprockets may be utilised for sintered bushing roller chains.


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