Leaf Chains are created for substantial load, slow pace stress linkage applications. Frequently they are specifi ed for reciprocating motion lifting devices this kind of as fork lifts or cranes. These chains are usually supplied to a specifi c length and therefore are connected to a clevis block at every single end. The clevis might accommodate male ends (inside or at times named “articulating” links) or female ends (outdoors or even the backlinks around the pin hyperlink) as expected (see illustration under)
Leaf chains can be found in three series; AL (light duty), BL (heavy duty), or LL (European regular). For new selections we suggest the BL series in preference to your AL series as the latter has been discontinued like a recognized ASME/ANSI standard series chain. BL series chains are created in accordance with the ASME/ANSI B29.8 American Leaf Chain Standard. LL series chains are made in accordance with the ISO 606 global leaf chain common.
A chain with an even quantity of pitches always features a 1 male and one female end. It truly is much more typical to have the chain possess an odd number of pitches during which situation the the two ends will likely be both male (most common) or female (significantly less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied unless otherwise noted. Clevis pins, usually with cotters at each and every end, are made use of to connect male chain ends to female clevis blocks. Chains with female ends are frequently (but not generally) linked on the clevis block which has a cottered kind connecting hyperlink. The connecting website link could be the female finish element in this case.
Leaf Chain Variety
Utilize the following formula to confirm the collection of leaf chain:
Minimum Ultimate Power > T x DF x SF
T: Calculated Highest Chain Stress
DF: Duty Element
SF: Services Element
Note that the maximum allowable chain speed for leaf chains is 100ft per minute.