Leaf Chains are made for high load, slow velocity tension linkage applications. Often they are really specifi ed for reciprocating motion lifting gadgets such as fork lifts or cranes. These chains are ordinarily provided to a specifi c length and are connected to a clevis block at each and every finish. The clevis may perhaps accommodate male ends (within or in some cases named “articulating” backlinks) or female ends (outside or the back links over the pin link) as required (see illustration beneath)
Leaf chains can be found in three series; AL (light duty), BL (hefty duty), or LL (European common). For new choices we propose the BL series in preference to the AL series because the latter is discontinued like a acknowledged ASME/ANSI typical series chain. BL series chains are created in accordance with all the ASME/ANSI B29.8 American Leaf Chain Normal. LL series chains are developed in accordance with all the ISO 606 worldwide leaf chain standard.
A chain with an even number of pitches usually has a 1 male and one female finish. It is far more popular to get the chain possess an odd number of pitches in which case the both ends is going to be both male (most typical) or female (much less com-mon). When ordering lengths with an odd number of pitches male ends are supplied unless of course otherwise noted. Clevis pins, generally with cotters at each and every finish, are used to connect male chain ends to female clevis blocks. Chains with female ends tend to be (but not always) linked towards the clevis block that has a cottered form connecting link. The connecting website link will be the female finish component in this instance.
Leaf Chain Selection
Use the following formula to verify the collection of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Greatest Chain Stress
DF: Duty Element
SF: Support Factor
Note that the greatest allowable chain pace for leaf chains is 100ft per minute.