Leaf Chains are made for high load, slow velocity tension linkage applications. Usually these are specifi ed for reciprocating motion lifting products such as fork lifts or cranes. These chains are generally supplied to a specifi c length and are connected to a clevis block at every single end. The clevis might accommodate male ends (inside or sometimes identified as “articulating” back links) or female ends (outdoors or even the links within the pin hyperlink) as expected (see illustration below)
Leaf chains can be found in 3 series; AL (light duty), BL (hefty duty), or LL (European conventional). For new choices we propose the BL series in preference towards the AL series because the latter continues to be discontinued as a acknowledged ASME/ANSI conventional series chain. BL series chains are created in accordance together with the ASME/ANSI B29.eight American Leaf Chain Standard. LL series chains are produced in accordance together with the ISO 606 international leaf chain normal.
A chain with an even variety of pitches always has a 1 male and one particular female end. It is actually a lot more prevalent to have the chain possess an odd amount of pitches through which situation the both ends are going to be either male (most common) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied unless of course otherwise mentioned. Clevis pins, usually with cotters at every end, are employed to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not generally) connected for the clevis block with a cottered type connecting hyperlink. The connecting website link may be the female end part in this case.
Leaf Chain Assortment
Use the following formula to confirm the variety of leaf chain:
Minimum Ultimate Power > T x DF x SF
T: Calculated Greatest Chain Tension
DF: Duty Component
SF: Service Component
Note that the greatest allowable chain pace for leaf chains is 100ft per minute.