Metric Ball Guide Sleeve Bushings (Steel Ball Bearing Bushing)

Metric ball guide sleeve bushings are used as bushing-only components inside die sets and guide systems where repeatable alignment under cycling load is critical. In injection and die-casting tooling, they support low-friction relative motion between mating guide elements, helping reduce stick-slip that can transfer to cavity alignment.

• Automotive and industrial die sets: Select the sleeve for metric post diameters (25–80 mm) to maintain stable ball guide motion across long stroke lengths. The steel construction supports wear-focused guide operation for consistent part-to-part repeatability.
• Large die-casting fixtures and slides: Use the available length range (65–265 mm) to match bushing housing depth and to provide guided engagement throughout travel.
• Precision tooling guide assemblies: These sleeves are suited when engineers need a straightforward bushing-only replacement that preserves the original guide interface geometry.

The supplied variant is a steel ball guide sleeve bushing, selected for its balance of wear resistance and adequate toughness in guide applications. In typical guide-system service, the bushing surface experience is dominated by sliding/rolling contact stresses, so steel helps resist progressive wear that can degrade alignment.

• Heat treatment: The product data specifies steel construction but does not provide the exact grade or heat-treatment state (e.g., nitriding, quench & temper). For accurate hardness and process confirmation, request the material/heat-treatment certificate for this SKU.
• Hardness & performance trade-offs: Higher hardness improves wear resistance but can reduce toughness if over-tempered or if the case is too brittle. Steel guide bushings generally target a controlled toughness-to-wear balance for cyclic load.
• Material comparison: If alternative materials are offered (not specified here), they typically trade off wear resistance versus dimensional stability and fatigue behavior. Use steel when guide life and predictable mechanical performance are priorities.

Correct sizing is determined by matching the sleeve to the metric guide post diameter and the bushing length L. This series is available for post diameters of 25, 32, 40, 50, 63, 80 mm and lengths from 65 to 265 mm.

• Step 1 – Select by post diameter: Choose the sleeve size whose post diameter matches the guide system’s metric post for proper fit and guided motion.
• Step 2 – Match length to engagement: Use L (65–265 mm) to cover the required guided travel and fit within the die set’s bushing housing depth so the ball guide remains supported throughout motion.
• Step 3 – Consider fit & tolerances: The input data does not list clearance or tolerance values. When sizing, confirm the intended running clearance for low-friction ball guide motion and verify that both the post and housing tolerances align with the bushing fit requirements.
• Configuration: Dimensions are specified as fixed sizes within the listed diameter and L ranges (choose the nearest exact catalog option required by your tooling).