Leaf Chain – Standard Information and Choice

Leaf Chains are produced for high load, slow velocity tension linkage applications. Often they are specifi ed for reciprocating motion lifting units this kind of as fork lifts or cranes. These chains are commonly supplied to a specifi c length and therefore are linked to a clevis block at just about every end. The clevis may accommodate male ends (within or at times identified as “articulating” backlinks) or female ends (outside or even the back links around the pin website link) as demanded (see illustration below)
Leaf chains are available in 3 series; AL (light duty), BL (heavy duty), or LL (European common). For new choices we recommend the BL series in preference towards the AL series because the latter has been discontinued as being a recognized ASME/ANSI normal series chain. BL series chains are generated in accordance using the ASME/ANSI B29.eight American Leaf Chain Standard. LL series chains are generated in accordance using the ISO 606 global leaf chain normal.
A chain with an even number of pitches usually features a 1 male and a single female finish. It’s much more frequent to possess the chain possess an odd amount of pitches through which case the each ends will be either male (most typical) or female (significantly less com-mon). When ordering lengths with an odd variety of pitches male ends are supplied unless otherwise noted. Clevis pins, usually with cotters at each finish, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are often (but not often) linked to your clevis block having a cottered type connecting link. The connecting website link may be the female finish element in this instance.
Leaf Chain Selection
Utilize the following formula to verify the selection of leaf chain:
Minimum Ultimate Strength > T x DF x SF
T: Calculated Maximum Chain Tension
DF: Duty Component
SF: Support Element
Note the greatest allowable chain pace for leaf chains is 100ft per minute.


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