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January 15, 2021

Leaf Chains are created for large load, slow velocity tension linkage applications. Often these are specifi ed for reciprocating motion lifting units this kind of as fork lifts or cranes. These chains are normally provided to a specifi c length and therefore are linked to a clevis block at each and every finish. The clevis might accommodate male ends (inside or from time to time termed “articulating” links) or female ends (outdoors or the backlinks on the pin hyperlink) as demanded (see illustration beneath)
Leaf chains can be found in 3 series; AL (light duty), BL (hefty duty), or LL (European common). For new selections we propose the BL series in preference to your AL series as the latter has become discontinued as a recognized ASME/ANSI typical series chain. BL series chains are generated in accordance together with the ASME/ANSI B29.8 American Leaf Chain Common. LL series chains are made in accordance with the ISO 606 international leaf chain typical.
A chain with an even amount of pitches usually features a one male and one particular female finish. It can be far more prevalent to possess the chain possess an odd variety of pitches during which case the each ends is going to be both male (most typical) or female (significantly less com-mon). When ordering lengths with an odd variety of pitches male ends are supplied unless of course otherwise noted. Clevis pins, usually with cotters at every single finish, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not constantly) linked to the clevis block that has a cottered form connecting hyperlink. The connecting hyperlink is the female end element in this instance.
Leaf Chain Choice
Utilize the following formula to verify the variety of leaf chain:
Minimal Greatest Power > T x DF x SF
T: Calculated Highest Chain Stress
DF: Duty Component
SF: Service Factor
Note that the optimum allowable chain speed for leaf chains is 100ft per minute.