Leaf Chains are created for substantial load, slow speed stress linkage applications. Usually they can be specifi ed for reciprocating motion lifting products this kind of as fork lifts or cranes. These chains are generally supplied to a specifi c length and therefore are linked to a clevis block at just about every finish. The clevis might accommodate male ends (inside or at times referred to as “articulating” hyperlinks) or female ends (outdoors or the links to the pin link) as required (see illustration beneath)
Leaf chains are available in three series; AL (light duty), BL (heavy duty), or LL (European typical). For new selections we endorse the BL series in preference on the AL series as the latter continues to be discontinued like a recognized ASME/ANSI normal series chain. BL series chains are developed in accordance with all the ASME/ANSI B29.8 American Leaf Chain Normal. LL series chains are generated in accordance together with the ISO 606 worldwide leaf chain typical.
A chain with an even amount of pitches often includes a 1 male and one particular female end. It can be much more frequent to possess the chain possess an odd variety of pitches by which situation the each ends might be both male (most typical) or female (significantly less com-mon). When ordering lengths with an odd quantity of pitches male ends are provided except if otherwise mentioned. Clevis pins, ordinarily with cotters at every end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not constantly) linked to the clevis block with a cottered style connecting hyperlink. The connecting hyperlink may be the female end element in this case.
Leaf Chain Choice
Make use of the following formula to confirm the choice of leaf chain:
Minimum Greatest Strength > T x DF x SF
T: Calculated Highest Chain Tension
DF: Duty Component
SF: Services Component
Note the highest allowable chain pace for leaf chains is 100ft per minute.