Shock Absorber, Air Or Hydraulic Cylinder Rod Guide:

The clearance between the rod and the rod guide's bearing surface and should be considered a critical leak path or a source for control force variation. This interface can truly be designed as a metered orifice and controlled with Dimension Bond technology.

Current bearing inserts employed throughout the ride control industry does not adequately offer the control required in many applications. The final bore characteristics are dependant upon the pre-qualification and accuracy of the rod guide bore prior to assembly of the bearing insert. The insert's dimensional accuracy cannot fully be measured and will change size with functional use. This change automatically alters the rod-to-rod guide clearance and creates a non-controlled leak and opportunity for control force shift. The actual concentricity of the bearing insert's bore offers opportunity for non-controlled, non-engineered leak paths due to the manufacture techniques associated with the split bushing.

Why spend the time, money and effort to qualify the rod to ten thousandths of an inch and place it into a questionable rod guide bore which offers thousandths per side clearance which increases with functional usage and creates opportunity for uncontrolled damping force variation?

Dimension Bond delivers dimensional precision and accuracy for the entire bearing land surface of the bore with accuracy and precision to deliver the designed clearance between rod and rod guide, which will remain constant for the life of the unit.

Today, a split-bushing insert is employed which may require engineered features to be manufactured into the rod guide or the bearing insert itself. Commonly a flange is added to the insert or incorporated into the rod guide in order to protect the oil seal and minimize the movement of the bearing insert. Dimension Bond technology eliminates the need for these measures while guaranteeing the integrity of the bearing surface for the life of the unit. Rod guide bore design and tooling required to produce the rod guide become more robust. Pre-qualifying of the bore size is eliminated. Dependency of the insert's final bore characteristics on the rod guide's pre-assembled bore is eliminated. Concern about insert movement or disassembly is eliminated with Dimension Bond technology. Dimension Bond permanently bonds a lubricant grade composite based material to the surface of the rod guide providing true lifetime freedom from the wear and tear of metal-to-metal contact.

The Dimension Bond equation is simple: simplified design + simplified manufacture + simplified assembly + improved performance + improved dimensional integrity + improved durability = control force stability, which in turn equals customer satisfaction.

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