Leaf Chains are produced for higher load, slow velocity stress linkage applications. Often these are specifi ed for reciprocating movement lifting devices such as fork lifts or cranes. These chains are usually provided to a specifi c length and therefore are connected to a clevis block at each end. The clevis may well accommodate male ends (inside or in some cases known as “articulating” back links) or female ends (outdoors or the hyperlinks around the pin website link) as expected (see illustration under)
Leaf chains can be found in 3 series; AL (light duty), BL (hefty duty), or LL (European normal). For new choices we recommend 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 produced in accordance with all the ASME/ANSI B29.8 American Leaf Chain Conventional. LL series chains are generated in accordance with all the ISO 606 international leaf chain conventional.
A chain with an even variety of pitches normally has a one particular male and one particular female finish. It’s extra typical to possess the chain possess an odd amount of pitches by which situation the each ends is going to be either male (most typical) or female (significantly less com-mon). When ordering lengths with an odd variety of pitches male ends are supplied except if otherwise noted. Clevis pins, ordinarily with cotters at every end, are employed to connect male chain ends to female clevis blocks. Chains with female ends are frequently (but not constantly) linked towards the clevis block using a cottered variety connecting website link. The connecting hyperlink will be the female finish part in this case.
Leaf Chain Variety
Make use of the following formula to verify the variety of leaf chain:
Minimum Ultimate Strength > T x DF x SF
T: Calculated Maximum Chain Stress
DF: Duty Issue
SF: Support Element
Note the highest allowable chain speed for leaf chains is 100ft per minute.