Is Extension Socket the Best Bolt Locking Method?
Extension sockets or Nord-Lock washers? Let us take you through the key parameters so that you can make the right choice.
|Extension Socket||Nord-Lock Wedge-Locking|
|Locking capability||Not reliable. May loosen eventually.||Reliable. High and constant quality of the product.|
|Product range||Not advisable for large bolts, as parts and assembly will be expensive.||M3-M130 (standard range)|
|Clamp length||Good flexibility in joint, since clamp length is always long. This compensates for settlements, but cannot prevent rotation.||Safely secures both long and short clamp lengths, by preventing rotation.|
|Control over clamp load||Due to the risk of loosening, lubrication is not recommended, which results in larger clamp load deviation.||Locking function not affected by lubrication, which provides for good control over clamp load.|
|Reusability||Reusable||Reusable. It does not affect the reusability of bolts/nuts.|
|Used in confined spaces||Limited use in confined spaces, due to extension body and long bolt. Bulky design solutions.||Suitable for and easy to assemble in confined spaces.|
|Life cycle cost||High. Relatively high price per unit. Eventual loosening will lead to increased maintenance costs and downtime.||Low. Relatively high price per unit. However, improved productivity, minimized maintenance costs and reusability will lead to lower life cycle costs.|
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