Leaf Chains are made for high load, slow pace stress linkage applications. Typically they may be specifi ed for reciprocating movement lifting devices such as fork lifts or cranes. These chains are commonly supplied to a specifi c length and are linked to a clevis block at each and every finish. The clevis may well accommodate male ends (within or at times named “articulating” links) or female ends (outside or even the back links on the pin hyperlink) as demanded (see illustration beneath)
Leaf chains are available in three series; AL (light duty), BL (hefty duty), or LL (European normal). For new choices we advise the BL series in preference to your AL series because the latter has become discontinued like a acknowledged ASME/ANSI conventional series chain. BL series chains are generated in accordance with the ASME/ANSI B29.8 American Leaf Chain Typical. LL series chains are generated in accordance together with the ISO 606 international leaf chain common.
A chain with an even quantity of pitches always has a a single male and one particular female end. It’s more prevalent to possess the chain possess an odd variety of pitches during which situation the each ends is going to be both male (most common) or female (much less com-mon). When ordering lengths with an odd variety of pitches male ends are provided unless of course otherwise mentioned. Clevis pins, normally with cotters at just about every finish, are used to connect male chain ends to female clevis blocks. Chains with female ends are often (but not generally) linked to your clevis block that has a cottered variety connecting website link. The connecting link could be the female finish element in this case.
Leaf Chain Assortment
Use the following formula to verify the variety of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Highest Chain Stress
DF: Duty Issue
SF: Services Element
Note the greatest allowable chain speed for leaf chains is 100ft per minute.