Long Shoulder Plain Guide Bushings - Demountable Style, Metric

Q: Which dimensions should I verify on the leader system to select the correct demountable guide bushing?

You should verify the leader/shaft diameter using D1 (24 ~ 50 mm) , and the housing/receiving pocket size using D2 (38, 45, 54, 65 mm) . Then confirm the needed guide engagement depth by matching L (98, 100, 115, 135 mm) to your die set geometry. These three parameters ensure proper guidance length and interface compatibility.

Q: When would I choose bronze-plated copper alloy versus steel for this guide bushing?

Choose bronze plated when your priority is stable sliding behavior and wear performance at the guide interface during repeated motion. Choose steel when you need a stronger base material for structural robustness under mechanical loading. The supplied data supports both material options but does not provide HRC, so final selection should be based on your wear mechanism and loading conditions.

Q: Is this bushing designed for serviceable installation in existing die sets?

Yes. The demountable style is intended for detachable mounting, which supports quicker replacement and maintenance of guide components. The product description also notes that it is supplied with clips and screws , and bonding with Loctite is optional.

Long Shoulder Plain Guide Bushings - Demountable Style, Metric are designed for die sets that require stable, repeatable alignment. Bronze-plated copper alloy or steel construction supports efficient guidance, with detachable installation for quick service.

Long shoulder geometry improves positional stability in die assemblies
Bronze-plated copper alloy or steel material set for reliable wear performance
Compatible with detachable mounting methods, with optional Loctite adhesive bonding
Supplied as a complete solution with clips and screws

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Specifications

16 configurations available

Dimension D1 (mm)	Dimension D2 (mm)	L (Length) (mm)	Material
24	38	98	Bronze plated
24	38	98	Steel
25	38	98	Bronze plated
25	38	98	Steel
30	45	100	Bronze plated
30	45	100	Steel
32	45	100	Bronze plated
32	45	100	Steel
38	54	115	Bronze plated
38	54	115	Steel
40	54	115	Bronze plated
40	54	115	Steel
48	65	135	Bronze plated
48	65	135	Steel
50	65	135	Bronze plated
50	65	135	Steel

Product Guide

🏭Application Scenarios+

In injection mold die sets, these long-shoulder guide bushings are used to maintain stable alignment between moving and stationary components during opening/closing cycles. The extended shoulder and plain guiding surface help control lateral play, which improves repeatability for parts that demand tight positional consistency.

Automotive and industrial connector molds: long guidance over a larger length (available L values of 98, 100, 115, 135 mm) supports smooth ejector plate or die movement, reducing misalignment-related wear.
Die sets for appliance and housings: demountable mounting enables quick maintenance when wear occurs, minimizing downtime while retaining consistent guide geometry.
High-cadence production with service access: the detachable style supports replacement without full disassembly of the leader system; bronze-plated copper alloy or steel construction is chosen based on guidance/wear needs.

The demountable design is well suited where fast servicing and reliable wear performance are critical.

🔧Material & Process Details+

This bushing is available in bronze plated (copper alloy) or steel constructions. Bronze-plated copper alloy variants are selected for efficient sliding behavior and effective resistance against surface wear during repeated die motion. Steel options provide higher structural robustness for guidance components subjected to mechanical load.

Bronze plated (copper alloy): typically chosen for improved wear tolerance on the guide interface; plating helps reduce friction and enhance running stability.
Steel: better suited when the assembly requires stronger base material characteristics; performance is optimized for dimensional stability under load.

Specific hardness (HRC) and heat treatment states (e.g., quenched & tempered, nitrided) are not provided in the supplied data, so exact HRC comparison cannot be stated. When selecting between variants, base material choice is usually driven by the trade-off between lower-friction/wear behavior (bronze plated) and greater base strength (steel).

📐Sizing & Selection Guide+

Correct dimension matching is essential to ensure concentric guidance and minimize stick-slip in the leader system. Use shaft diameter D1 and the corresponding bushing inner/guide region to match your leader or guide pin; available D1 is 24 ~ 50 mm.

Select D2 from the provided options: 38, 45, 54, 65 mm. D2 should be compatible with the receiving pocket/guide bore in the die set.
Select length L to match the required engagement depth in the die assembly: 98, 100, 115, 135 mm.
Demountable fit considerations: because the style supports detachable installation, ensure the surrounding pocket and retention features (clips/screws as supplied) provide stable clamping to prevent micro-movement.

Tolerance values are not specified in the provided data; therefore, plan clearances and fits based on your die standards and the tolerancing system used for leader bushings. If bonding is used (optional Loctite), confirm surface preparation requirements to maintain the intended restraint and alignment.

Frequently Asked Questions

Which dimensions should I verify on the leader system to select the correct demountable guide bushing?+

You should verify the leader/shaft diameter using D1 (24 ~ 50 mm), and the housing/receiving pocket size using D2 (38, 45, 54, 65 mm). Then confirm the needed guide engagement depth by matching L (98, 100, 115, 135 mm) to your die set geometry. These three parameters ensure proper guidance length and interface compatibility.

When would I choose bronze-plated copper alloy versus steel for this guide bushing?+

Choose bronze plated when your priority is stable sliding behavior and wear performance at the guide interface during repeated motion. Choose steel when you need a stronger base material for structural robustness under mechanical loading. The supplied data supports both material options but does not provide HRC, so final selection should be based on your wear mechanism and loading conditions.

How does the long-shoulder geometry affect alignment in leader-ejector die sets?+

The long shoulder provides a larger effective guidance region, which helps reduce lateral play and supports stable, repeatable alignment between mold moving and stationary parts. This is especially beneficial when the guiding length is increased using the available L values (98–135 mm).

Is this bushing designed for serviceable installation in existing die sets?+

Yes. The demountable style is intended for detachable mounting, which supports quicker replacement and maintenance of guide components. The product description also notes that it is supplied with clips and screws, and bonding with Loctite is optional.

Can I bond the bushing using Loctite, and when is that typically used?+

The supplied description states that the bushing can be used with optional Loctite adhesive bonding in addition to the demountable mounting approach. Use adhesive bonding when your application benefits from additional retention to prevent micro-movement in the die pocket. Confirm compatibility with your die steel and the intended operating temperature range.