Xtreme pressure leaf chains

Excessive internal friction caused by temporary extreme loading and made worse by inadequate lubrication results in turned pins. It is important to note that extreme loads on a brand new leaf chain results in turned pins even on its very first movement. The likelihood of turned pins occurring increases when internal leaf chain bearing pressure exceeds 0.18 kN/mm²; this would be 14% to 15% of a leaf chain tensile strength (UTS). Some machinery stands allow operating loads of up to 20% UTS, which increases the risk of turned pins even without working in demanding environments.

Xtreme pressure leaf chains are dimensionally similar to the leaf chain in the international standard. However, the pin length is longer than the ISO standard equivalent, and the running width and distance between flanges may require checking and adjustment. If the leaf chain anchors have been made to international standards, the leaf chain terminations should require no alteration.

These xtreme pressure leaf chains have a tensile strength in excess of the international standard as they are made up of slip fit links, and there is a reduction fatigue load when compared to standard construction leaf chain.

 Inter-changeablePitch P MMPin Diameter A MMPlate Thickness B MMPlate Depth C MMPin Length D MMWasher ThicknessWeight KG/MetreBreaking Strength kN
BL644XPBL644-LH124419.057.943.301833.723127.5
BL645XPBL666-LH126619.057.943.301847.324.5191.2
BL646XPBL688-LH128819.057.943.301860.926255
BL844XPBL844-LH164425.49.534.0924.141.225206
BL846XPBL846-LH164625.49.534.0924.149.726.2206
BL866XPBL866-LH166625.49.534.0924.15827.3309
BL888XPBL888-LH168825.49.534.0924.174.429.5412
WL1644XPLL324450.0817.81643.0060.203.1013.50530
WL1666XPLL326650.0817.81643.0087.203.1020.00800
WL1688XPLL328850.0817.81643.00111.203.1026.501050
WL2066XPLL406663.522.89873.03112.203.1030.001270
WL2088XPLL408863.522.89873.03146.003.1038.801690
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