Ball Guide Bushings (Metric) (Aluminum)

Ball guide bushings (metric) are used in demountable injection mold tooling where a ball cage system must maintain stable alignment under repeated opening and closing. In large-mold die-casting and high-cycle stripper/guide areas, the bushing-only design supports streamlined upkeep by allowing replacement of the guide interface without disturbing the full assembly.

• Demountable stripper and guide components: Pair the aluminum metric bushing with a ball cage to keep the cage centered and reduce alignment drift during actuation.
• Ball-cage guided die sets: Use these bushings to create consistent guidance points in die layouts that require metric spacing and post interfaces.
• Maintenance-focused service intervals: The aluminum body provides a lightweight die-maintenance element, helping technicians swap worn components quickly while preserving repeatable positioning.

This variant is suited for these applications because it is built specifically for metric ball cage systems and offers configurable post diameter options (25, 32, 40, 50 mm) to match common die layouts.

The provided configuration specifies an aluminum construction bushing body for the metric ball guide bushing. Aluminum is selected here to support lightweight handling and efficient maintenance in large demountable tooling, where guide components may be serviced periodically.

• Wear vs. stiffness trade-off: Compared with hardened tool steels, aluminum generally provides lower surface hardness and wear resistance, so it is best suited to applications where loads are controlled and guidance accuracy is more critical than maximum abrasion resistance.
• Heat treatment: The input data does not specify a steel grade or heat treatment condition (e.g., quench & temper, nitriding). For aluminum versions, surface performance typically depends on the alloy and any finishing processes, which are not detailed here.
• Manufacturing process (bushing-only): Designed as a replacement component, the bushing is manufactured and dimensioned to mate with metric ball cage systems used in stripper/guide assemblies.

When higher wear resistance is required, tool-steel bushing options are typically considered; however, this SKU is explicitly the aluminum variant and should be selected accordingly.

Select the bushing by matching the post diameter to your die guide layout and by choosing the L (length) to achieve the required guidance engagement length. This model offers post diameter options of 25, 32, 40, 50 mm, and available lengths: 30, 35, 42, 39, 46, 54 mm.

• Step 1: Match post diameter: Choose the post diameter that corresponds to the guide post/interface diameter used in your metric die set.
• Step 2: Set engagement length (L): Verify that the selected L provides sufficient bushing coverage for stable ball cage guidance through the full die stroke and throughout assembly stack-up.
• Step 3: Fit and tolerance considerations: Because the input data does not list a specific tolerance, confirm fit using your internal die drawing tolerances for the post interface and alignment features. Ensure the bushing-only replacement maintains the intended concentricity with the ball cage.

Dimensions are configurable within the specified ranges (post diameter and L). Fixed dimensions are otherwise determined by the selected size variant.