ISO 9448-7 1.3505 Steel Guide Bushings for Ball Cages

Q: What ISO 9448-7 alignment features should I expect from this guide bushing in a ball cage system?

The bushing is manufactured to ISO 9448-7 , which standardizes the guide geometry and collar fit concept for ball cage guidance. This helps deliver consistent guide performance by supporting stable alignment in the guide interface. For best results, match the required D (19–80 mm) and L (35–150 mm) to your cage housing design.

Q: Is the specified hardness (60–64 HRC) appropriate for heavy-load die-casting tooling guide contact?

The provided spec states the steel is heat treated to 60–64 HRC . This hardness range is intended to improve wear resistance and maintain dimensional stability under load, which is important for cyclic guide contact. If your application involves shock loading, confirm your mechanical design can avoid brittle fracture risk at high hardness.

Q: When should I choose the version with the DFC retaining clamp versus the one without?

The series is available in two alteration states: without DFC retaining clamp or with DFC retaining clamp . Choose the clamp variant when your assembly experiences vibration or requires additional retention security for long-term stability. Choose the non-clamp variant if your housing design already provides sufficient retention by geometry alone.

Q: How do I determine the correct bushing size for my existing pillar interface?

Use the two dimensional constraints provided: D (pillar outer diameter) = 19–80 mm and L (length) = 35–150 mm . Select D to match the pillar outer diameter requirement for the defined collar fit, and select L to cover the full axial guidance/support zone of the cage. Verify the final fit concept (clearance vs press) against your own tolerancing, since no tolerance values are listed in the provided data.

Guide Bushings for Ball Cages (1.3505 steel) are manufactured to ISO 9448-7 to support reliable ball cage guidance in industrial die and bearing assemblies. Heat treatment to 60–64 HRC helps maintain dimensional stability under load.

Compliant ISO 9448-7 design for consistent guide performance
Rolling bearing steel construction with 60–64 HRC hardness
Optional DFC retaining clamp for secure mounting retention
Used for ball cage guide systems where precise alignment is critical

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Specifications

110 configurations available

Length L (mm)	D (Pillar outer diameter) (mm)	Alteration
35	19	Without DFC Retaining Clamp
35	19	With DFC Retaining Clamp
43	19	Without DFC Retaining Clamp
43	19	With DFC Retaining Clamp
59	19	Without DFC Retaining Clamp
59	19	With DFC Retaining Clamp
35	20	Without DFC Retaining Clamp
35	20	With DFC Retaining Clamp
43	20	Without DFC Retaining Clamp
43	20	With DFC Retaining Clamp
59	20	Without DFC Retaining Clamp
59	20	With DFC Retaining Clamp
35	24	Without DFC Retaining Clamp
35	24	With DFC Retaining Clamp
55	24	Without DFC Retaining Clamp
55	24	With DFC Retaining Clamp
59	24	Without DFC Retaining Clamp
59	24	With DFC Retaining Clamp
79	24	Without DFC Retaining Clamp
79	24	With DFC Retaining Clamp
80	24	Without DFC Retaining Clamp
80	24	With DFC Retaining Clamp
35	25	Without DFC Retaining Clamp
35	25	With DFC Retaining Clamp
55	25	Without DFC Retaining Clamp
55	25	With DFC Retaining Clamp
59	25	Without DFC Retaining Clamp
59	25	With DFC Retaining Clamp
79	25	Without DFC Retaining Clamp
79	25	With DFC Retaining Clamp
80	25	Without DFC Retaining Clamp
80	25	With DFC Retaining Clamp
42	30	Without DFC Retaining Clamp
42	30	With DFC Retaining Clamp
69	30	Without DFC Retaining Clamp
69	30	With DFC Retaining Clamp
75	30	Without DFC Retaining Clamp
75	30	With DFC Retaining Clamp
93	30	Without DFC Retaining Clamp
93	30	With DFC Retaining Clamp
93	30	Without DFC Retaining Clamp
93L	30	With DFC Retaining Clamp
42	32	Without DFC Retaining Clamp
42	32	With DFC Retaining Clamp
69	32	Without DFC Retaining Clamp
69	32	With DFC Retaining Clamp
75	32	Without DFC Retaining Clamp
75	32	With DFC Retaining Clamp
93	32	Without DFC Retaining Clamp
93	32	With DFC Retaining Clamp

Product Guide

🏭Application Scenarios+

These ISO 9448-7 guide bushings are used in ball cage guidance systems inside industrial bearing assemblies and die-related mechanical interfaces where controlled rolling alignment is required. In practice, they help maintain cage concentricity while the mold or actuator experiences repeated motion, vibration, and changing loads.

They are commonly specified for large die-casting and heavy-duty tooling that uses ball cage mechanisms for smooth part movement, because the guide bushing’s defined collar fit supports stable alignment over time. The 1.3505 steel construction and 60–64 HRC heat treatment are suited to resist wear from cage contact and to reduce dimensional drift under load.

Die-casting bearing housings: supports consistent rolling alignment during cyclic operations.
Ball cage guide systems: improves repeatability by stabilizing the guide geometry.
Mounting with retention clamp (optional): the DFC variant supports secure assembly retention where vibration is expected.

🔧Material & Process Details+

The bushing is made from 1.3505 (rolling bearing steel) and manufactured to ISO 9448-7. The steel is heat treated to 60–64 HRC, which balances wear resistance against toughness for guide applications where sliding/rolling contact and localized stress occur.

At this hardness level, the component is designed to maintain alignment by limiting surface wear and reducing the tendency for micro-deformation under guide loads. The tighter hardness range (60–64 HRC) helps provide consistent performance across batches.

Hardness: 60–64 HRC for stable guide behavior under repeated contact.
Wear vs. toughness: higher hardness increases wear resistance, but requires correct handling to avoid shock loading.
Manufacturing/process: produced to ISO 9448-7 with heat treatment to the specified hardness band (state as provided).

No alternative steel grades are specified in the provided data; selection should therefore be based on the required hardness and ISO 9448-7 geometry.

📐Sizing & Selection Guide+

Select the guide bushing by matching the length L and the pillar outer diameter D to the corresponding mold/assembly features of your ball cage guide system. This series supports L = 35–150 mm and D = 19–80 mm; choose the closest available size that fits the cavity/core interface and the cage guide space.

Step 1: Determine the required axial guidance length, then select L within 35–150 mm to cover the full contact/support zone.
Step 2: Measure the pillar outer diameter requirement and select D within 19–80 mm to ensure the correct collar fit for guidance.
Step 3: Confirm the variant for retention—either without DFC retaining clamp or with DFC retaining clamp—based on whether your assembly needs extra mounting retention under vibration.

Because the input data does not provide tolerance values, engineers should verify fit to their drawing requirements (e.g., press-fit/clearance intent) during final design review.

Frequently Asked Questions

What ISO 9448-7 alignment features should I expect from this guide bushing in a ball cage system?+

The bushing is manufactured to ISO 9448-7, which standardizes the guide geometry and collar fit concept for ball cage guidance. This helps deliver consistent guide performance by supporting stable alignment in the guide interface. For best results, match the required D (19–80 mm) and L (35–150 mm) to your cage housing design.

Is the specified hardness (60–64 HRC) appropriate for heavy-load die-casting tooling guide contact?+

The provided spec states the steel is heat treated to 60–64 HRC. This hardness range is intended to improve wear resistance and maintain dimensional stability under load, which is important for cyclic guide contact. If your application involves shock loading, confirm your mechanical design can avoid brittle fracture risk at high hardness.

When should I choose the version with the DFC retaining clamp versus the one without?+

The series is available in two alteration states: without DFC retaining clamp or with DFC retaining clamp. Choose the clamp variant when your assembly experiences vibration or requires additional retention security for long-term stability. Choose the non-clamp variant if your housing design already provides sufficient retention by geometry alone.

How do I determine the correct bushing size for my existing pillar interface?+

Use the two dimensional constraints provided: D (pillar outer diameter) = 19–80 mm and L (length) = 35–150 mm. Select D to match the pillar outer diameter requirement for the defined collar fit, and select L to cover the full axial guidance/support zone of the cage. Verify the final fit concept (clearance vs press) against your own tolerancing, since no tolerance values are listed in the provided data.