Demountable Steel Ball Guide Post Bushings for Ball Bearing - Metric

These demountable ball guide post bushings are used inside demountable die sets to provide precise, repeatable alignment between mating halves. Because the component is bushing-only, it can be swapped during maintenance without replacing the full guide post assembly.

Automotive and industrial die casting tooling: In die sets where guide alignment must remain stable under frequent cycling, the steel construction supports dimensional stability and helps maintain ball-guided positioning over time. This variant is suited for metric guide post diameters because it covers 25–80 mm nominal post diameters.

Large mold/die casting modules: For multi-cavity systems and heavy-duty die inserts, the long working length range (55–190 mm) supports proper engagement length and reduces misalignment risk during clamping.

• Supports ball-guided alignment for repeatable positioning
• Demountable design simplifies maintenance in split die systems
• Metric sizing range matches common post diameter selections

The product uses steel for reliable assembly and stable guide behavior in demountable die sets. In ball guide applications, steel offers good dimensional stability and adequate wear resistance for the rolling contact interface between balls and mating guide surfaces.

• Heat treatment: No specific heat-treatment state (e.g., quenched & tempered, nitrided) is provided in the available specifications, so select the final treatment based on your guide-load and surface-wear requirements.
• Hardness / trade-offs: Hardening generally improves wear resistance but can reduce toughness if pushed too high. For guide bushings, balance hardness against impact resistance to prevent chipping during clamp/unclamp cycles.
• Manufacturing process: Typical production routes for steel guide bushings include precision machining of the bore and ball-guide geometry, followed by deburring and dimensional finishing to achieve stable fits.

If you need a specific grade or target hardness, confirm the grade/treatment requirement in your RFQ so the supplier can match your die-set durability goals.

Select the bushing based on two functional dimensions: the Nom. Post Diameter and the L (Length). This ensures correct ball-guide engagement and proper alignment support through the clamped die thickness.

• Nom. Post Diameter (mm): choose a bushing sized for your guide post in the 25–80 mm range.
• L (Length) (mm): match the required engagement/guide coverage using the 55–190 mm length range.

In die layout, compare your core/cavity stack and expected ball-guide travel to ensure the bushing length provides sufficient contact without bottoming. If your design uses a demountable guide system, verify fit conditions (clearance/interference) in the bushing-to-post interface, and maintain your design tolerances during machining.

Both dimensions are provided as configurable spec ranges for this series; select from available sizes rather than assuming a custom one-off fit.