Leaf Chain – Common Information and facts and Choice

Leaf Chains are manufactured for higher load, slow pace stress linkage applications. Usually they are really specifi ed for reciprocating motion lifting devices such as fork lifts or cranes. These chains are usually provided to a specifi c length and therefore are linked to a clevis block at each and every finish. The clevis may well accommodate male ends (inside or sometimes known as “articulating” links) or female ends (outdoors or even the backlinks within the pin link) as required (see illustration beneath)
Leaf chains are available in three series; AL (light duty), BL (heavy duty), or LL (European regular). For new choices we suggest the BL series in preference on the AL series since the latter has been discontinued as being a acknowledged ASME/ANSI regular series chain. BL series chains are made in accordance with the ASME/ANSI B29.eight American Leaf Chain Conventional. LL series chains are made in accordance together with the ISO 606 international leaf chain standard.
A chain with an even quantity of pitches always features a one male and 1 female finish. It really is additional common to have the chain possess an odd quantity of pitches by which situation the both ends will be both male (most typical) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are provided except if otherwise mentioned. Clevis pins, generally with cotters at every end, are utilized to connect male chain ends to female clevis blocks. Chains with female ends tend to be (but not normally) connected towards the clevis block by using a cottered type connecting link. The connecting hyperlink will be the female end component in this instance.
Leaf Chain Selection
Utilize the following formula to confirm the choice of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Maximum Chain Tension
DF: Duty Issue
SF: Service Aspect
Note that the maximum allowable chain pace for leaf chains is 100ft per minute.


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