Servicing absolutely free chains working with sintered alloy bushings
Sintered bushing roller chain is maintenance-free chain appropriate to a location in which lubrication is difficult. It utilizes bushings produced of the sintered alloy which impregnates lubricating oil.
To the use that involves clean physical appearance, rustless type (URN) is accessible.
Suggested employs
?Situations the place lubrication is difficult or elongation of chain regularly happens Remarks for use.
?Will not use this chain in dusty environments. In such environments, use O-ring chains.
?This chain is to the use underneath light or medium load.Use O-ring chain whenever a big affect is applied to a chain.
?Set the chain feeding speed at 150m/min. or reduced.
Choice of chains
As for sintered bushing roller chains, the inner plates are thicker plus the pins are longer than these of common roller chains in order to compensate to the power lowered from the utilization of sintered bushings.
For picking out a suitable chain, refer to “Selection of Chains”. Utilize the tables of optimum kilowatt ratings for sintered bushing roller chains that cover low speed ranges.
For sintered bushing roller chains, “Low-speed selection” can’t be utilised because the “Maximum allowable load” within the dimension table considers only the chain tensile tension and neglects the bushing strength.
Connecting backlinks and offset backlinks
For sintered bushing roller chain, R connecting links are utilized for DID60 or smaller sized, and C connecting links for DID80 or bigger.
OJ could be utilized as offset back links. Please place an order the connecting links and offset links specifying the variety for sintered bushing roller chain.
From the tables of greatest kilowatt ratings, the strength on the connecting backlinks and offset back links are taken into account.
Sprockets
Standard sprockets is usually employed for sintered bushing roller chains.