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January 15, 2021

Leaf Chains are produced for large load, slow speed tension linkage applications. Usually they’re specifi ed for reciprocating motion lifting devices this kind of as fork lifts or cranes. These chains are usually provided to a specifi c length and therefore are connected to a clevis block at each finish. The clevis could accommodate male ends (inside or at times identified as “articulating” hyperlinks) or female ends (outside or the links about the pin website link) as required (see illustration beneath)
Leaf chains can be found in 3 series; AL (light duty), BL (heavy duty), or LL (European normal). For new choices we advise the BL series in preference towards the AL series as the latter is discontinued as being a acknowledged ASME/ANSI common series chain. BL series chains are generated in accordance together with the ASME/ANSI B29.eight American Leaf Chain Standard. LL series chains are made in accordance using the ISO 606 global leaf chain conventional.
A chain with an even number of pitches constantly has a a single male and one female finish. It can be more typical to have the chain possess an odd variety of pitches during which situation the each ends is going to be either male (most common) or female (much less com-mon). When ordering lengths with an odd amount of pitches male ends are supplied unless otherwise mentioned. Clevis pins, normally with cotters at every single end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are frequently (but not always) linked on the clevis block using a cottered style connecting website link. The connecting hyperlink could be the female finish element in this instance.
Leaf Chain Choice
Use the following formula to confirm the selection of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Highest Chain Tension
DF: Duty Element
SF: Support Issue
Note the highest allowable chain velocity for leaf chains is 100ft per minute.