Leader Bushings for Medium-Large Mold
Straight-type leader bushings with oil groove lubrication channels for large mold guiding systems. Extends maintenance intervals to 50,000+ shots through controlled lubrication distribution.
Products
Brass Ball Cages for Guide Bushings with Circlip
Brass ball cages with groove circlip retention for large mold guide bushings. Provides stable ball guidance under high dynamic loads.
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MBB Ball Guide Bushings for Die Sets Bonded by Devcon Adhesive | Bushing Only
Ball guide bushings for die sets with MBB type mounting. Bonded by Devcon adhesive for reliable positioning in die sets. Bushing only.
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Ball Guide Bushings for Die Sets | Loctite Adhesive Bonded | Fast Quote
Ball Guide Bushings for Die Sets with Loctite adhesive bonding for secure placement. Ball guide type supports die set alignment; request a quote.
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Ball Guide Bushings for Die Sets - Loctite Adhesive | LBB Type
Ball Guide Bushings for Die Sets with Loctite adhesive bonding. LBB type bushing only for die set guidance, providing stable alignment. Request a quot
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RBB Ball Guide Bushings for Die Sets, Detachable Type | Bushing Only
RBB ball guide bushings for die sets in detachable type. Bushing only solution for die set guide systems requiring precise, repeatable alignment. Cont
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Ball Guide Bushings for Die Sets | Loctite Bonded LBBS | Fast Clamp-Free Assembly
Ball guide bushings for die sets, Loctite bonded LBBS type. Improve alignment of lower die guide systems while simplifying installation. Request a quo
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Aluminum Ball Cages for Guide Bushings with Groove & Circlip | MISUMI-Style
Aluminum ball cages for guide bushings with groove and circlip retain multiple rolling elements for smooth alignment. Choose for die guide systems.
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ISO 9448-5 Steel Guide Bushings for Ball Cages - Flange Flat-Sided | 61~63 HRC | Fast Supply
ISO 9448-5 Steel guide bushings for ball cages with one-side flange flattened flat-sides design. 61~63 HRC for wear resistance. Request a quote.
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ISO 9448-3 Guide Bushings for Ball Cages (1.1730 Steel) | Heat-Treated 61–63 HRC | Made to Order
ISO 9448-3 Guide Bushings for Ball Cages in 1.1730 steel, heat-treated to 61–63 HRC for reliable guidance. Anaerobic adhesive type for secure assembly
View DetailsISO 9448-7 1.3505 Steel Guide Bushings for Ball Cages | 60-64 HRC Hardness
ISO 9448-7 1.3505 steel guide bushings for ball cages with defined collar fit. Heat treated to 60–64 HRC for stable alignment. Request a quote.
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Aluminum Groove Ball Cages for Guide Bushings with Circlip | MISUMI
Aluminum groove ball cages for guide bushings with circlip help stabilize DGBI3S, DGBI5S, and DGBI7S assemblies. MISUMI for reliable guide performance
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Ball Guide Bushings for Die Sets Bonded by Loctite Adhesive | Precision Die Set Bushing
Ball Guide Bushings for die sets bonded by Loctite adhesive deliver tighter outer diameter, 5 µm-level coaxiality, and improved surface finish to redu
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Steel Ball Bearing Demountable Guide Post Bushings for Inch | LEMPCO
Steel Ball Bearing Demountable Guide Post Bushings for inch post systems. Bushing only for ball guide posts, enabling accurate alignment in die sets.
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Inch Ball Guide Post Bushings for Ball Bearing - Steel | LEMPCO
Inch ball guide post bushings for ball bearing (steel) provide smooth alignment for die sets and guided components. Bushing only—durable steel for rel
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Press Fit Steel Sleeve Bushings for Ball Bearing - Inch | Bushing Only
Press Fit Steel Sleeve Bushings for Ball Bearing - Inch provide stable ball-guided alignment. Steel bushing only for clean installation and reliable f
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Demountable Steel Ball Guide Post Bushings for Ball Bearing - Metric | LEMPCO
Demountable Steel Ball Guide Post Bushings for Ball Bearing - Metric provide precise ball guide alignment in die sets. Steel construction for reliable
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Steel Press-Fit Sleeve Bushings for Ball Guide Bearings | LEMPCO
Steel press-fit sleeve bushings for ball guide bearings from LEMPCO. Ball guide bushing only for metric applications—engineered for stable alignment.
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Ball Guide Sleeve Bushings - Press Fit Type - Inch | Lamina Steel
Ball Guide Sleeve Bushings - Press Fit Type - Inch for precision die set applications. Steel construction helps maintain smooth linear guidance. Reque
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Inch Steel Ball Guide Bushings for Mounted Clamp Applications | Tight Fit, Low Tolerance | Lamina
Inch Steel Ball Guide Bushings for mounted clamp applications. Ball guide bushing only with tight inch tolerance range for stable alignment and smooth
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Ball Guide Bushings for Metric Die Sets | Steel | Lamina | Fast Shipping
Ball guide bushings for metric die sets made from steel for stable alignment. Lamina bushings support smooth guided motion for reliable press operatio
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Ball Bearing Ball Guide Bushings (Metric) | Steel | Mounted by Clamps
Ball Bearing Ball Guide Bushings (Metric) in steel for clamp-mounted assemblies. Ball guide design supports smooth alignment; choose the L length you
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Metric Ball Guide Sleeve Bushings - Steel Ball Bearing Bushing | DANLY IEM
Metric Ball Guide Sleeve Bushings in steel for smooth ball guide motion in die sets and guide systems. DANLY IEM bushing only. Request a quote.
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Metric Steel Detachable Ball Guide Bushings | DANLY IEM | Precision Fit
Metric Steel Detachable Ball Guide Bushings for precision die alignment and smooth motion. Steel construction for stable fit and long service life. Ge
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Ball Guide Bushings (Metric) - Aluminum | DANLY IEM | Bushing Only
Ball guide bushings for metric die sets using ball cages (aluminum construction). Bushing only for streamlined maintenance and precise alignment. Requ
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Inch Ball Guide Bushings Only | DANLY IEM | Demountable Boss System | Fast Assembly
Inch Ball Guide Bushings (bushing only) from DANLY IEM for demountable boss systems. Ball guide type supports precise alignment in die sets.
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Inch Ball Bearing Demountable Bushings - Steel | DANLY IEM | Bushing Only | Detachable
Inch Ball Bearing Demountable Bushings for guide applications, built in steel for stable alignment. Detachable bushing only—request a quote.
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Various Steels Cavity Insert Block Blanks | Reference Plane Options
Various steels cavity insert block blanks with reference plane options help maintain dimensional accuracy in die and mold builds. Choose your configur
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Various Steels 6-Face Ground Cavity Insert Blocks | Reference Plane-Free | Fast Delivery
Various Steels 6-face ground cavity insert blocks for precision mold cavities and slides. Choose reference or no reference plane to streamline fitting
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EGBN Type Ejector Leader Bushings - Long Guide, Oil Grooves, SUJ2 Bearing Steel | MISUMI
EGBN Type Ejector Leader Bushings for long guide applications with oil grooves and SUJ2 bearing steel. Designed for stable alignment—contact us.
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Ejector Leader Bushings - Oil Grooves EGBH | SUJ2 Bearing Steel | Fast Delivery
Ejector Leader Bushings - Oil Grooves (EGBH) in SUJ2 bearing steel for stable guiding and lubrication. Built for standard ejector assemblies.
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EGBZ Oil-Free Ejector Leader Bushings Long Guide | Copper Alloy | Accurate Alignment
EGBZ Oil-Free Ejector Leader Bushings Long Guide in copper alloy deliver stable guidance without oil. Designed for smooth ejection and lower maintenan
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EGBNZ Type Oil-Free Ejector Leader Bushings Long Guide, SUJ2 Bearing Steel | Efficient Lubrication-Free Wear Performance
Oil-Free Ejector Leader Bushings with long guide EGBNZ type support stable leader alignment in injection molds. SUJ2 bearing steel reduces wear and fr
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EGBZS Type Oil-Free Ejector Leader Bushings - Copper Alloy | Customizable Options
EGBZS type oil-free ejector leader bushings in copper alloy for smooth, stable leader guidance. Oil-free design reduces maintenance and wear. Request
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EGBHZ Type Oil-Free Ejector Leader Bushings (SUJ2 Bearing Steel) | Standard Type | MISUMI Advantage
Oil-Free Ejector Leader Bushings with EGBHZ type design and SUJ2 bearing steel for standard oil-free applications. Durable, low maintenance—request a
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EGBL Ejector Leader Bushings - Ball Bearing Integrated | Precise Linear Alignment
EGBL ejector leader bushings with ball bearing integrated design for precise linear guidance. Reduce friction, improve alignment, and ensure stable ej
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EGBB Ejector Leader Bushings for Ball Bearing Retainer | Precision-Fit Bushings
EGBB ejector leader bushings for ball bearing retainer align ejector motion and support smooth leader guidance. Contact us for application support.
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EMBS Type Ball Retainers for Ejector Leader Bushing | Fit Multiple Leader Pins
EMBS Type ball retainers for ejector leader bushing keep leader pins centered and guided in demanding mold cycles. Ball retainers for reliable assembl
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Early Return Units for Ejector Plate | Spacer, Cam Rod & Push Pin Options | Factory Support
Early Return Units for Ejector Plate support precise alignment and stable operation. Spacer, cam rod, and push pin options for dependable ejector perf
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EGBPK Oil-Free Ejector Leader Bushings for High Temperature - Copper Alloy | Industrial Parts
EGBPK oil-free ejector leader bushings for high temperature (copper alloy) help maintain stable alignment during mold cycles. Built for reliable motio
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EGBSK Oil-Free Ejector Leader Bushings for High Temperature Long Guide, Copper Alloy | Fast Lead Times
Oil-Free Ejector Leader Bushings for High Temperature Long Guide (EGBSK) in copper alloy for reliable dry lubrication in precision die casting. Get a
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Self-Lubricating Ejector Bushings Bronze, Inch | DANLY IEM | Oil-Free Copper Alloy
Self-Lubricating Ejector Bushings Bronze, Inch by DANLY IEM for oil-free slide guidance in molds. Copper alloy, self-lubricating bushings—request a qu
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Self-Lubricating Ejector Bushings - Bronze | Oil-Free Copper Alloy | DANLY IEM
Self-Lubricating Ejector Bushings - Bronze by DANLY IEM. Oil-free bronze copper alloy bushings for smooth ejector motion in die casting. Contact us fo
View DetailsPairing: Bushing + Pin + Stopper Plate
| Interface | Tolerance | Purpose |
|---|---|---|
| Bushing bore ↔ Leader pin | H7/f7 (0.010–0.020 mm clearance) | Controlled sliding fit for alignment |
| Bushing OD ↔ Plate bore | H7/r6 (press-fit) | Secure retention in plate |
| Stopper plate ↔ Bushing flange | Bolted contact | Prevents axial migration |
Decision rule: Leader bushings must match the leader pin outer diameter with 0.005–0.015 mm sliding clearance. Oil groove type determines re-lubrication interval. For detailed guidance, see our What Press-Fit Tolerances Do Leader Bushings Need in Large Molds?.
Application
High-Cycle Guided Molds
Molds running >15 second cycles where leader pin-to-bushing wear directly impacts part dimensional accuracy.
Spiral oil groove bushings extend re-lubrication intervals by 2-3× compared to straight grooves, reducing maintenance downtime while maintaining 0.005-0.015 mm sliding clearance precision.
Recommended: Spiral Oil Groove bushings for cycle times <15 seconds
Vertical/Inverted Mold Mounting
Molds mounted vertically or inverted where gravity pulls lubricant away from the bushing-to-pin contact surface.
Cross-hatched oil groove pattern maximizes oil retention in any mounting orientation, preventing dry-running wear that causes progressive bore enlargement and loss of alignment precision.
Recommended: Cross-Hatched Oil Groove bushings for non-horizontal mounting
Decision rule: Oil groove type determines re-lubrication interval and maximum cycle speed. Choose spiral grooves for high-cycle horizontal molds, cross-hatched for vertical or inverted mounting. For detailed guidance, see our How Oil Groove Patterns Affect Leader Bushing Lubrication Life.