Leaf Chain – General Details and Choice

Leaf Chains are manufactured for substantial load, slow velocity stress linkage applications. Normally they’re specifi ed for reciprocating movement lifting products such as fork lifts or cranes. These chains are ordinarily provided to a specifi c length and therefore are connected to a clevis block at just about every end. The clevis could accommodate male ends (inside or from time to time known as “articulating” links) or female ends (outdoors or the hyperlinks over the pin website link) as expected (see illustration under)
Leaf chains are available in three series; AL (light duty), BL (hefty 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 being a acknowledged ASME/ANSI typical series chain. BL series chains are produced in accordance with the ASME/ANSI B29.eight American Leaf Chain Regular. LL series chains are made in accordance with all the ISO 606 worldwide leaf chain typical.
A chain with an even number of pitches always features a a single male and a single female end. It can be a lot more widespread to have the chain possess an odd quantity of pitches through which situation the the two ends will probably be either male (most common) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied except if otherwise noted. Clevis pins, normally with cotters at each finish, are used to connect male chain ends to female clevis blocks. Chains with female ends are often (but not usually) connected for the clevis block with a cottered form connecting hyperlink. The connecting hyperlink is the female finish element in this case.
Leaf Chain Choice
Make use of the following formula to verify the choice of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Highest Chain Stress
DF: Duty Aspect
SF: Support Aspect
Note the maximum allowable chain pace for leaf chains is 100ft per minute.