Leaf Chains are created for high load, slow pace stress linkage applications. Normally they may be specifi ed for reciprocating movement lifting products such as fork lifts or cranes. These chains are commonly supplied to a specifi c length and therefore are connected to a clevis block at every single end. The clevis could accommodate male ends (inside or from time to time referred to as “articulating” back links) or female ends (outside or even the back links to the pin website link) as needed (see illustration beneath)
Leaf chains can be found in 3 series; AL (light duty), BL (hefty duty), or LL (European normal). For new selections we endorse the BL series in preference to your AL series because the latter is discontinued being a recognized ASME/ANSI conventional series chain. BL series chains are made in accordance using the ASME/ANSI B29.8 American Leaf Chain Normal. LL series chains are made in accordance with the ISO 606 worldwide leaf chain common.
A chain with an even amount of pitches often features a a single male and 1 female finish. It really is additional frequent to get the chain possess an odd amount of pitches during which case the the two ends is going to be either male (most typical) or female (significantly less com-mon). When ordering lengths with an odd variety of pitches male ends are provided unless otherwise noted. Clevis pins, commonly with cotters at just about every end, are applied to connect male chain ends to female clevis blocks. Chains with female ends are often (but not generally) connected for the clevis block that has a cottered variety connecting hyperlink. The connecting hyperlink could be the female finish component in this instance.
Leaf Chain Selection
Use the following formula to verify the choice of leaf chain:
Minimal Greatest Strength > T x DF x SF
T: Calculated Maximum Chain Tension
DF: Duty Issue
SF: Service Component
Note that the greatest allowable chain velocity for leaf chains is 100ft per minute.