Leaf Chain – Common Information and facts and Assortment

Leaf Chains are produced for higher load, slow speed tension linkage applications. Frequently they are specifi ed for reciprocating motion lifting units such as fork lifts or cranes. These chains are usually provided to a specifi c length and therefore are connected to a clevis block at every single finish. The clevis might accommodate male ends (within or sometimes termed “articulating” back links) or female ends (outside or the links on the pin hyperlink) as necessary (see illustration under)
Leaf chains are available in 3 series; AL (light duty), BL (hefty duty), or LL (European typical). For new choices we recommend the BL series in preference towards the AL series since the latter is discontinued being a recognized ASME/ANSI standard series chain. BL series chains are made in accordance together with the ASME/ANSI B29.8 American Leaf Chain Common. LL series chains are produced in accordance together with the ISO 606 global leaf chain regular.
A chain with an even quantity of pitches often features a a single male and 1 female end. It’s extra common to have the chain possess an odd quantity of pitches by which situation the each ends are going to be either male (most typical) or female (significantly less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied except if otherwise noted. Clevis pins, typically with cotters at every single finish, are utilized to connect male chain ends to female clevis blocks. Chains with female ends are frequently (but not usually) connected for the clevis block which has a cottered style connecting hyperlink. The connecting link may be the female end component in this instance.
Leaf Chain Choice
Make use of the following formula to verify the collection of leaf chain:
Minimal Ultimate Power > T x DF x SF
T: Calculated Maximum Chain Stress
DF: Duty Issue
SF: Service Aspect
Note the maximum allowable chain velocity for leaf chains is 100ft per minute.