Leaf Chains are made for substantial load, slow velocity tension linkage applications. Usually these are specifi ed for reciprocating motion lifting gadgets this kind of as fork lifts or cranes. These chains are generally supplied to a specifi c length and therefore are connected to a clevis block at each finish. The clevis may well accommodate male ends (within or often termed “articulating” hyperlinks) or female ends (outdoors or the back links around 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 propose the BL series in preference to the AL series because the latter is discontinued being a acknowledged ASME/ANSI conventional series chain. BL series chains are made in accordance using the ASME/ANSI B29.eight American Leaf Chain Conventional. LL series chains are made in accordance with all the ISO 606 international leaf chain regular.
A chain with an even number of pitches constantly features a a single male and a single female finish. It’s a lot more widespread to get the chain possess an odd quantity of pitches by which situation the each ends is going to be either male (most typical) or female (much less com-mon). When ordering lengths with an odd number of pitches male ends are supplied unless of course otherwise noted. Clevis pins, commonly with cotters at every single end, are applied to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not constantly) linked towards the clevis block using a cottered style connecting link. The connecting link could be the female end part in this case.
Leaf Chain Variety
Utilize the following formula to confirm the collection of leaf chain:
Minimum Greatest Power > T x DF x SF
T: Calculated Maximum Chain Stress
DF: Duty Factor
SF: Service Factor
Note that the highest allowable chain velocity for leaf chains is 100ft per minute.