ISO 9448-6 Guide Bushings With Collar

Q: Which material variant should I choose for higher wear and boundary-lubrication conditions?

For sliding performance under boundary lubrication, the bronze with solid graphite rings variant is the most directly aligned option. The series maintains functional hardness of 50~54 HRC (with DB≥180 ), which supports wear resistance during repeated press cycling. If you expect stable lubrication supply, bronze-coated C40 or Sinter FE may be more appropriate depending on your maintenance interval targets.

Q: How do I select the correct length L for a medium-height guide bushing?

Select L = 43 ~ 120 mm to achieve the required guided overlap in your die set. The bushing collar improves axial positioning, so you should target a length that gives consistent leader engagement while avoiding interference with plates or ejection hardware. If your assembly uses the DFC retaining clamp , choose the corresponding configuration ( with or without clamp) to match your stack-up.

Q: Do I need the DFC retaining clamp version for every die set installation?

The series is available as Without DFC Retaining Clamp or With DFC Retaining Clamp . Choose the clamp version if your assembly design requires positive retention for installation security or if your die maintenance procedure depends on fixed component retention. If your mounting method already provides reliable retention, the non-clamp variant can simplify the stack-up.

Q: What hardness level and wear baseline are these guide bushings designed to meet?

The specified hardness is 50~54 HRC with DB≥180 . This combination is intended to provide consistent wear performance under repeated press cycles. When qualifying replacements, ensure the chosen part configuration matches this hardness baseline so you do not inadvertently change long-term wear behavior.

Q: What diameter range (D) is available, and how should it relate to leader sizing?

The available D range is 19 ~ 80 mm . In your die design, select the bushing diameter that matches your leader and intended running clearance requirements. Because the provided specifications do not define a specific tolerance class for fit, you should confirm your clearances using your internal leader/bushing drawing and clearance standards.

ISO 9448-6 guide bushings with collar are medium-height alignment components designed to support stable guided motion in die sets. Hardened construction (50~54 HRC) helps resist wear under repeated press cycles.

Collar design improves axial positioning and guides reliable assembly.
Material options include bronze-coated C40, sinter FE for long lubrication, and graphite ring bushings.
Controlled hardness of 50~54 HRC with DB≥180 for consistent wear performance.
Commonly used for die set guide systems where alignment and smooth running are critical.

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Specifications

68 configurations available

L (Length) (mm)	D (Diameter) (mm)	M (Material)	Hardness	Alteration
43	19	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
43	19	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
43	19	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
43	19	Bronze with solid graphite rings	-	With DFC Retaining Clamp
43	19	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
43	19	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
43	20	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
43	20	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
43	20	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
43	20	Bronze with solid graphite rings	-	With DFC Retaining Clamp
43	20	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
43	20	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
59	24	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
59	24	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
59	24	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
59	24	Bronze with solid graphite rings	-	With DFC Retaining Clamp
59	24	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
59	24	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
59	25	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
59	25	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
59	25	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
59	25	Bronze with solid graphite rings	-	With DFC Retaining Clamp
59	25	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
59	25	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
75	30	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
75	30	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
75	30	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
75	30	Bronze with solid graphite rings	-	With DFC Retaining Clamp
75	30	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
75	30	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
75	32	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
75	32	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
75	32	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
75	32	Bronze with solid graphite rings	-	With DFC Retaining Clamp
75	32	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
75	32	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
82	38	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
82	38	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
82	38	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
82	38	Bronze with solid graphite rings	-	With DFC Retaining Clamp
82	38	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
82	38	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
82	40	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
82	40	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp
82	40	Bronze with solid graphite rings	-	Without DFC Retaining Clamp
82	40	Bronze with solid graphite rings	-	With DFC Retaining Clamp
82	40	Sinter FE / Long term lubrication	-	Without DFC Retaining Clamp
82	40	Sinter FE / Long term lubrication	-	With DFC Retaining Clamp
97	48	C40 / Bronze	50~54 HRC / DB≥180	Without DFC Retaining Clamp
97	48	C40 / Bronze	50~54 HRC / DB≥180	With DFC Retaining Clamp

Product Guide

🏭Application Scenarios+

These ISO 9448-6 guide bushings with collar are used in die set guide systems where repeatable alignment between the fixed and moving platens is critical. Their medium height supports guided motion while helping maintain stable eccentric load distribution during press cycles.

Automotive and industrial stamping die sets: Use the medium-height collar to improve axial locating during assembly, and rely on the 50~54 HRC hardness level to resist wear under repeated shut-height cycling.
General-purpose molding and forming tooling: The collar helps prevent misalignment from assembly variation, while the bronze-coated or long-term lubricated material variants support smoother running and longer service intervals.
Wear-prone alignment applications: For higher friction conditions, choose the graphite-lubricated hardening variant (bronze with solid graphite rings) to maintain sliding performance when boundary lubrication is expected.

🔧Material & Process Details+

This product is offered in ISO 9448-6 guide bushing material variants designed for different lubrication and wear requirements, while keeping a consistent functional hardness of 50~54 HRC (with DB≥180 per the spec). The standard option uses C40 (bronze-coated) for good toughness with a wear-supportive surface layer.

Bronze-coated C40: Provides improved surface wear behavior; suitable for applications needing stable running with moderate lubrication dependency.
Sinter FE (long-term lubrication): Optimized for sustained lubrication effects from the sintered structure to support continuous guided motion.
Bronze with solid graphite rings: Enhances sliding under boundary conditions; generally trades some surface load capacity compared with purely metallic/bronze-coated approaches but improves friction stability.

The hardening state is specified as 50~54 HRC; for exact heat-treatment curves and process routes, align procurement with your die-shop process qualification requirements.

📐Sizing & Selection Guide+

To select the correct guide bushing, match the diameter D and length L ranges to the leader and guide features in your die set. This series covers D = 19 ~ 80 mm and L = 43 ~ 120 mm, so choose the pair that fits your cavity/core and leader engagement depth requirements.

Match axial engagement: Use L to achieve the desired guided overlap between the collar face and mating plate/leader components, ensuring stable alignment across the full stroke.
Match clearance behavior: Confirm that your leader diameter and the bushing bore design meet your intended running clearance; follow your existing press die design rules because the spec provided here does not list a specific bore tolerance or fit class.
Retaining configuration: Select the alteration option Without DFC Retaining Clamp or With DFC Retaining Clamp based on whether your assembly uses the retaining clamp for installation security.

Keep the 50~54 HRC / DB≥180 hardness requirement in mind when deciding whether replacement parts must meet the same wear-performance baseline.

Frequently Asked Questions

Which material variant should I choose for higher wear and boundary-lubrication conditions?+

For sliding performance under boundary lubrication, the bronze with solid graphite rings variant is the most directly aligned option. The series maintains functional hardness of 50~54 HRC (with DB≥180), which supports wear resistance during repeated press cycling. If you expect stable lubrication supply, bronze-coated C40 or Sinter FE may be more appropriate depending on your maintenance interval targets.

How do I select the correct length L for a medium-height guide bushing?+

Select L = 43 ~ 120 mm to achieve the required guided overlap in your die set. The bushing collar improves axial positioning, so you should target a length that gives consistent leader engagement while avoiding interference with plates or ejection hardware. If your assembly uses the DFC retaining clamp, choose the corresponding configuration (with or without clamp) to match your stack-up.

Do I need the DFC retaining clamp version for every die set installation?+

The series is available as Without DFC Retaining Clamp or With DFC Retaining Clamp. Choose the clamp version if your assembly design requires positive retention for installation security or if your die maintenance procedure depends on fixed component retention. If your mounting method already provides reliable retention, the non-clamp variant can simplify the stack-up.

What hardness level and wear baseline are these guide bushings designed to meet?+

The specified hardness is 50~54 HRC with DB≥180. This combination is intended to provide consistent wear performance under repeated press cycles. When qualifying replacements, ensure the chosen part configuration matches this hardness baseline so you do not inadvertently change long-term wear behavior.

What diameter range (D) is available, and how should it relate to leader sizing?+

The available D range is 19 ~ 80 mm. In your die design, select the bushing diameter that matches your leader and intended running clearance requirements. Because the provided specifications do not define a specific tolerance class for fit, you should confirm your clearances using your internal leader/bushing drawing and clearance standards.