ep

January 15, 2021

Leaf Chains are made for higher load, slow pace tension linkage applications. Normally they are specifi ed for reciprocating motion lifting devices such as fork lifts or cranes. These chains are generally provided to a specifi c length and therefore are connected to a clevis block at every single finish. The clevis may perhaps accommodate male ends (inside or sometimes termed “articulating” hyperlinks) or female ends (outdoors or even the links over the pin website link) as necessary (see illustration under)
Leaf chains can be found in three series; AL (light duty), BL (heavy duty), or LL (European conventional). For new selections we advocate the BL series in preference for the AL series as the latter continues to be discontinued like a recognized ASME/ANSI normal series chain. BL series chains are produced in accordance with all the ASME/ANSI B29.eight American Leaf Chain Normal. LL series chains are generated in accordance with the ISO 606 global leaf chain regular.
A chain with an even amount of pitches often has a 1 male and 1 female end. It truly is extra typical to possess the chain possess an odd quantity of pitches during which case the the two ends will likely be both male (most common) or female (less com-mon). When ordering lengths with an odd variety of pitches male ends are provided unless of course otherwise noted. Clevis pins, usually with cotters at each end, are utilized to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not always) connected for the clevis block which has a cottered style connecting link. The connecting link is the female finish element in this case.
Leaf Chain Variety
Make use of the following formula to verify the variety of leaf chain:
Minimum Ultimate Strength > T x DF x SF
T: Calculated Optimum Chain Tension
DF: Duty Factor
SF: Service Component
Note the optimum allowable chain pace for leaf chains is 100ft per minute.