Leaf Chains are made for large load, slow velocity stress linkage applications. Typically they are really specifi ed for reciprocating motion lifting products this kind of as fork lifts or cranes. These chains are normally supplied to a specifi c length and are linked to a clevis block at every end. The clevis might accommodate male ends (within or at times called “articulating” hyperlinks) or female ends (outside or even the hyperlinks to the pin hyperlink) as demanded (see illustration under)
Leaf chains can be found in three series; AL (light duty), BL (hefty duty), or LL (European common). For new selections we propose the BL series in preference to your AL series because the latter is discontinued as being a recognized ASME/ANSI common series chain. BL series chains are generated in accordance with the ASME/ANSI B29.8 American Leaf Chain Standard. LL series chains are made in accordance with the ISO 606 international leaf chain typical.
A chain with an even variety of pitches often features a a single male and a single female end. It truly is more common to have the chain possess an odd quantity of pitches by which situation the both ends will be either male (most common) or female (less com-mon). When ordering lengths with an odd amount of pitches male ends are supplied unless of course otherwise mentioned. Clevis pins, generally with cotters at every finish, are utilised to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not generally) linked to your clevis block by using a cottered sort connecting hyperlink. The connecting link may be the female end part in this instance.
Leaf Chain Assortment
Make use of the following formula to verify the choice of leaf chain:
Minimum Greatest Power > T x DF x SF
T: Calculated Highest Chain Tension
DF: Duty Issue
SF: Support Component
Note that the highest allowable chain velocity for leaf chains is 100ft per minute.