January 15, 2021

Leaf Chains are produced for higher load, slow speed stress linkage applications. Often they are specifi ed for reciprocating movement lifting devices this kind of as fork lifts or cranes. These chains are generally provided to a specifi c length and are linked to a clevis block at every single finish. The clevis may accommodate male ends (inside or in some cases referred to as “articulating” backlinks) or female ends (outdoors or the back links over the pin link) as demanded (see illustration under)
Leaf chains are available in three series; AL (light duty), BL (hefty duty), or LL (European standard). For new choices we advocate the BL series in preference to the AL series as the latter continues to be discontinued as a recognized ASME/ANSI standard series chain. BL series chains are made in accordance together with the ASME/ANSI B29.8 American Leaf Chain Typical. LL series chains are produced in accordance together with the ISO 606 international leaf chain conventional.
A chain with an even quantity of pitches always has a 1 male and 1 female finish. It is actually more typical to possess the chain possess an odd variety of pitches through which situation the each ends will likely be either male (most common) or female (much less com-mon). When ordering lengths with an odd variety of pitches male ends are provided unless otherwise noted. Clevis pins, usually with cotters at each end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not always) connected to your clevis block which has a cottered kind connecting link. The connecting link is definitely the female end part in this instance.
Leaf Chain Variety
Use the following formula to confirm the choice of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Optimum Chain Tension
DF: Duty Factor
SF: Support Component
Note that the highest allowable chain velocity for leaf chains is 100ft per minute.