Leaf Chain - Basic Facts and Assortment

Leaf Chains are produced for high load, slow speed stress linkage applications. Typically they may be specifi ed for reciprocating motion lifting units this kind of as fork lifts or cranes. These chains are typically supplied to a specifi c length and therefore are connected to a clevis block at each end. The clevis might accommodate male ends (within or in some cases called “articulating” links) or female ends (outside or the back links on the pin hyperlink) as demanded (see illustration below)
Leaf chains are available in 3 series; AL (light duty), BL (hefty duty), or LL (European typical). For new choices we propose the BL series in preference to your AL series because the latter continues to be discontinued like a recognized ASME/ANSI normal series chain. BL series chains are created in accordance with all the ASME/ANSI B29.eight American Leaf Chain Typical. LL series chains are developed in accordance with the ISO 606 worldwide leaf chain regular.
A chain with an even amount of pitches constantly features a one male and a single female finish. It is actually more widespread to get the chain possess an odd variety of pitches by which situation the both ends will probably be both male (most common) or female (significantly less com-mon). When ordering lengths with an odd quantity of pitches male ends are provided unless otherwise mentioned. Clevis pins, commonly with cotters at every single end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends tend to be (but not generally) connected to the clevis block with a cottered kind connecting hyperlink. The connecting website link will be the female end component in this instance.
Leaf Chain Variety
Use the following formula to verify the variety of leaf chain:
Minimum Ultimate Strength > T x DF x SF
T: Calculated Optimum Chain Stress
DF: Duty Factor
SF: Service Factor
Note that the highest allowable chain velocity for leaf chains is 100ft per minute.

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