Leaf Chains are manufactured for large load, slow velocity tension linkage applications. Frequently these are specifi ed for reciprocating movement lifting gadgets this kind of as fork lifts or cranes. These chains are ordinarily supplied to a specifi c length and therefore are connected to a clevis block at every single finish. The clevis may possibly accommodate male ends (within or occasionally known as “articulating” hyperlinks) or female ends (outside or the hyperlinks about the pin hyperlink) as expected (see illustration beneath)
Leaf chains are available in three series; AL (light duty), BL (heavy duty), or LL (European conventional). For new choices we advocate the BL series in preference to your AL series because the latter is discontinued being a acknowledged ASME/ANSI normal series chain. BL series chains are developed in accordance with the ASME/ANSI B29.8 American Leaf Chain Typical. LL series chains are generated in accordance with the ISO 606 global leaf chain standard.
A chain with an even variety of pitches always features a one particular male and 1 female finish. It truly is extra widespread to have the chain possess an odd variety of pitches through which case the the two ends will probably be both male (most typical) or female (significantly less com-mon). When ordering lengths with an odd amount of pitches male ends are supplied unless of course otherwise mentioned. Clevis pins, usually with cotters at each finish, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are often (but not often) connected on the clevis block that has a cottered form connecting website link. The connecting website link may be the female finish part in this case.
Leaf Chain Variety
Make use of the following formula to confirm the collection of leaf chain:
Minimal Greatest Strength > T x DF x SF
T: Calculated Highest Chain Tension
DF: Duty Factor
SF: Support Issue
Note the greatest allowable chain pace for leaf chains is 100ft per minute.