January 15, 2021

Leaf Chains are created for high load, slow speed tension linkage applications. Typically they may be specifi ed for reciprocating motion lifting gadgets this kind of as fork lifts or cranes. These chains are typically supplied to a specifi c length and are connected to a clevis block at every single finish. The clevis may perhaps accommodate male ends (within or in some cases identified as “articulating” backlinks) or female ends (outdoors or the backlinks about the pin website link) as demanded (see illustration under)
Leaf chains can be found in three series; AL (light duty), BL (hefty duty), or LL (European normal). For new selections we propose the BL series in preference on the AL series as the latter is discontinued being a recognized ASME/ANSI regular series chain. BL series chains are developed in accordance together with the ASME/ANSI B29.eight American Leaf Chain Normal. LL series chains are generated in accordance using the ISO 606 worldwide leaf chain conventional.
A chain with an even variety of pitches normally features a a single male and one female finish. It is actually additional common to have the chain possess an odd variety of pitches through which case the both ends will probably be either male (most typical) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied unless of course otherwise mentioned. Clevis pins, commonly with cotters at every end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends tend to be (but not often) linked for the clevis block with a cottered kind connecting link. The connecting link will be the female finish part in this case.
Leaf Chain Variety
Utilize the following formula to confirm the selection of leaf chain:
Minimum Ultimate Strength > T x DF x SF
T: Calculated Highest Chain Stress
DF: Duty Issue
SF: Services Factor
Note that the highest allowable chain speed for leaf chains is 100ft per minute.