Leaf Chain – Standard Information and facts and Choice

Leaf Chains are manufactured for substantial load, slow pace stress linkage applications. Often they’re specifi ed for reciprocating motion lifting products such as fork lifts or cranes. These chains are ordinarily provided to a specifi c length and are linked to a clevis block at each and every end. The clevis may well accommodate male ends (inside or from time to time termed “articulating” hyperlinks) or female ends (outdoors or the back links around the pin link) as expected (see illustration below)
Leaf chains can be found in three series; AL (light duty), BL (heavy duty), or LL (European common). For new choices we suggest the BL series in preference on the AL series because the latter is discontinued as a acknowledged ASME/ANSI normal series chain. BL series chains are made in accordance with the ASME/ANSI B29.eight American Leaf Chain Common. LL series chains are generated in accordance with all the ISO 606 international leaf chain normal.
A chain with an even quantity of pitches often features a one particular male and one female end. It can be more popular to have the chain possess an odd quantity of pitches by which case the the two ends will be both male (most typical) or female (less com-mon). When ordering lengths with an odd quantity of pitches male ends are provided unless otherwise noted. Clevis pins, normally with cotters at each and every end, are employed to connect male chain ends to female clevis blocks. Chains with female ends are sometimes (but not normally) connected on the clevis block which has a cottered sort connecting website link. The connecting hyperlink is definitely the female end part in this case.
Leaf Chain Choice
Use the following formula to confirm the choice of leaf chain:
Minimal Ultimate Power > T x DF x SF
T: Calculated Greatest Chain Stress
DF: Duty Component
SF: Service Element
Note the highest allowable chain velocity for leaf chains is 100ft per minute.