Special Lubricated Chain
RING LEADER® O-ring Chain
Diamond’s Ring Leader O-ring chain is specifically designed for applications that don’t permit regular lubrication, requiring the chain to depend entirely upon initial factory lubrication throughout its service life. Depending upon the specific conditions, Ring Leader can provide up to ten times the wear life of standard chain. Industry can introduce contaminants that damage standard chain. Build up on the chain can clog the openings on standard roller chain where lubrication enters the pin/bushing area and these contaminants can even get inside the chain, actually damaging the surface of pins and bushings. Ring Leader O-ring chain is constructed with O-rings that seal a specially formulated lubricant into every joint.

DURALUBE® Chain
When the environment or location of your roller chain drive is such that regular lubrication is not possible or practical, consider Diamond Chain’s Special Lubricated chains. Diamond offers two types of Single- and Double-Pitch Drive or Conveyor chains designed specifically to deliver the highest level of performance – even in applications that can’t, or don’t receive proper lubrication. For applications where regular lubrication is a challenge, DURALUBE can offer a longer lasting solution. This chain is constructed using a one-piece powdered metal bushing/roller combination which has lubricant drawn in under vacuum. In service, this lubricant is released and provides supplemental lubrication to the pin/bushing joint between regularly scheduled maintenance. Generally, the wear life of DURALUBE chain can be five times that of standard （initially lubricated only） chain.

：王
：wanghm@lsptc.com