Is Adhesive the Best Bolt Locking Method?
Adhesives or Nord-Lock washers? Finding the ultimate bolt securing system is no easy task. Here is a guide to making the right choice.
|Range||M3-M130||Unlimited (not size dependent)|
|Temperature||Same temperature characteristics as regular bolts/nuts.||Sensitive to high temperatures.|
|Assembly||No preparation required.||Requires degreasing.|
|Curing time||No curing time.||Up to 12 hours (increased downtime of equipment).|
|Control over clamp load||Linear relationship between torque/load thus possible to predict the clamp load. Does not increase the risk of torsion.||Adds friction in the thread, making it difficult to predict the clamp load. Also increases the risk of torsion.|
|Disassembly||No special requirements.||Requires heating.|
|Reusability||Reusable. Does not affect reusability of bolts/nuts.||Not possible to reuse. Bolts/nuts needs to be cleaned before reuse, which is time consuming.|
|Environment||Recyclable. Meets ELV and RoHS directives.||Not recyclable, contains contaminous chemicals. May
cause allergic reactions.
|Lubrication||Possible to lubricate.||Not possible.|
|Visual inspection||Visual inspection possible.||Visual inspection possible.|
|Life cycle cost (LCC)||Low. Relative high price per unit. Long life cycle. Improves stability and minimizes maintenance cost.||High. Relative low price per unit. Short life cycle. Increases maintenance costs and assembly time.|