Leaf Chains are made for high load, slow velocity stress linkage applications. Generally these are specifi ed for reciprocating movement lifting products such as fork lifts or cranes. These chains are normally provided to a specifi c length and are connected to a clevis block at every finish. The clevis may well accommodate male ends (within or often called “articulating” hyperlinks) or female ends (outside or even the backlinks about the pin link) as essential (see illustration under)
Leaf chains can be found in 3 series; AL (light duty), BL (hefty duty), or LL (European typical). For new selections we suggest the BL series in preference to your AL series since the latter has been discontinued being a recognized ASME/ANSI typical series chain. BL series chains are created in accordance with all the ASME/ANSI B29.8 American Leaf Chain Common. LL series chains are developed in accordance with all the ISO 606 international leaf chain typical.
A chain with an even number of pitches generally has a one male and one female end. It truly is extra common to have the chain possess an odd quantity of pitches during which situation the both ends will probably be both male (most typical) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are supplied except if otherwise mentioned. Clevis pins, commonly with cotters at every single finish, are utilised to connect male chain ends to female clevis blocks. Chains with female ends are frequently (but not normally) connected on the clevis block that has a cottered style connecting website link. The connecting website link could be the female end part in this case.
Leaf Chain Choice
Utilize the following formula to confirm the selection of leaf chain:
Minimal Greatest Power > T x DF x SF
T: Calculated Maximum Chain Stress
DF: Duty Component
SF: Services Issue
Note that the optimum allowable chain pace for leaf chains is 100ft per minute.