ISO 9448-4 Bronze Flanged Guide Bushings Short

Flanged guide bushings (short) are used in injection mold tooling wherever a leader pin needs stable, low-friction guidance with repeatable die alignment.

• Automotive and electronics connector molds: The short, one-side flanged layout helps control the effective guide length, reducing positional variation during high-cycle press operation—especially beneficial when the slide and fixed plates experience cyclic loading.
• Compact die sets and ejector/leader assemblies: Bronze’s inherent machinability and the bushing’s ISO 9448-4 form factor support consistent leader motion in space-constrained configurations.
• High-wear sliding guide applications: Choose the 61~63 HRC hardened option for stronger wear resistance under frequent sliding; the coated bronze option (52~54 HRC) targets improved surface behavior where friction and scuffing control are critical.

By matching the ISO 9448-4 geometry, this bushing variant integrates cleanly with guide systems designed to the same standard.

This bushing uses 1.7131 bronze as the base material. Bronze provides good bearing behavior for sliding guidance, balancing low friction with adequate wear performance.

• Hardened option: Available in 61~63 HRC. This improves wear resistance and helps resist surface deformation during repetitive leader motion. Expect a trade-off toward reduced toughness compared with softer bronze grades.
• Coated option: Also offered at 52~54 HRC. The lower bulk hardness is compensated by the wear-focused coating system for improved scuffing control.

Manufacturing typically involves precision machining to bronze billets of the selected grade, followed by the appropriate hardening/coating process per the hardness option selected. Selecting between hardened and coated variants lets you tune wear resistance versus impact-tolerance needs in the guide interface.

To select the correct short flanged guide bushing, match the molded die guide design requirements to the available D (diameter) and L (length) options.

• Diameter (D): Choose from 19~50 mm to fit the leader pin and maintain the intended running clearance for your guide system.
• Length (L): Select one of the available short lengths: 38, 45, 55, or 62 mm, based on the required effective guided stroke within the die set.

For ISO 9448-4 compatibility, ensure the bushing’s flanged geometry corresponds to your standardized leader/bushing arrangement; this affects how alignment is maintained during press cycles. Since only hardness and materials are selectable, D and L are fixed by the provided options—confirm tolerances using your leader pin diameter spec and the ISO 9448-4 fit expectations for the overall guide assembly.