Leaf Chain – Standard Data and Choice

Leaf Chains are manufactured for substantial load, slow pace tension linkage applications. Typically they are really specifi ed for reciprocating movement lifting units 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 end. The clevis may possibly accommodate male ends (inside or sometimes known as “articulating” back links) or female ends (outside or the hyperlinks about the pin hyperlink) as necessary (see illustration under)
Leaf chains are available in three series; AL (light duty), BL (hefty duty), or LL (European common). For new selections we propose the BL series in preference on the AL series because the latter is discontinued being a acknowledged ASME/ANSI common series chain. BL series chains are created in accordance with the ASME/ANSI B29.eight American Leaf Chain Standard. LL series chains are created in accordance with all the ISO 606 international leaf chain common.
A chain with an even number of pitches usually includes a a single male and a single female end. It can be additional common to possess the chain possess an odd number of pitches in which case the both ends will likely be both male (most common) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied unless of course otherwise mentioned. Clevis pins, generally with cotters at every single finish, are employed to connect male chain ends to female clevis blocks. Chains with female ends tend to be (but not always) linked to your clevis block which has a cottered form connecting website link. The connecting hyperlink may be the female finish component in this case.
Leaf Chain Choice
Utilize the following formula to confirm the variety of leaf chain:
Minimal Ultimate Strength > T x DF x SF
T: Calculated Optimum Chain Tension
DF: Duty Issue
SF: Support Factor
Note the greatest allowable chain speed for leaf chains is 100ft per minute.