Spider underside wear liner

Protects the underside of the spider casting to help extend the service life of the spider assembly.

Spider underside wear liner

Spider underside wear liner (Spider Underside Wear Liner)— Gyratory Crusher Wear part, position 31.

Installation and Function

Installation PositionOn the underside of the spider, at the underside wear liner position shown in FLS spider cap and shield upgrade documentation.
Main FunctionProtects the underside of the spider casting to help extend the service life of the spider assembly.
Replacement FrequencyModerate to high wear exposure; buried feed, uneven feeding and highly abrasive ore accelerate wear.

Materials and Mechanical Properties

ItemDetails
Material OptionsHigh-manganese steel, martensitic wear-resistant cast steel or quenched and tempered wear plate
Typical Properties and Acceptance CriteriaFor conditions where the spider is buried in feed or abrasive ore wears its underside. Requires wear resistance, adequate impact toughness, secure fastening and full coverage. Pay particular attention to liner edges, bolts, joints and stress concentrations around the central bushing.
Principal Failure MechanismSliding or three-body abrasion, localized impact and cracking around fastener holes

Material and Design Considerations

  • Identify material hardness, particle size, abrasiveness, moisture, temperature, pH, impact and tramp material;
  • High hardness does not replace core toughness, fatigue strength, corrosion resistance or high-temperature performance;
  • For composite, hardfaced, ceramic and elastomer designs, assess substrate bonding, edge protection, fastening and maintainability;
  • For parts that mate with shafts, gears, seals, roll surfaces or housings, control fits, tolerances, surface finish and assembly clearances together;
  • Assess material upgrades using cumulative throughput, dimensional wear, failure modes, product quality and downtime costs.

Required Ordering / RFQ Information

  • Equipment manufacturer, machine model, serial number, part number and latest drawing revision;
  • Part dimensions, unit weight, key tolerances, assembly and fastening method;
  • Current material, chemical composition, heat treatment, hardness and mechanical property reports;
  • Processed material, maximum particle size, hardness/abrasiveness, moisture and tramp material records;
  • Speed, load, temperature, pressure, process medium chemistry and continuous operating time;
  • Failure photographs, wear measurements, crack/fracture locations and current service life;
Materials and values are for preliminary engineering selection. Final chemical composition, heat treatment, hardness and dimensional tolerances must follow the OEM drawings and technical agreement.
Related Equipment and Materials

Equipment, Materials and OEM Identification

Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.

Material Options for This Part

Independent aftermarket information. OEM names and trademarks belong to their respective owners and do not imply authorization, affiliation or endorsement. Confirm the series, complete model, serial or drawing number, drawings and operating conditions before manufacture.

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Manufacturing Services in China

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ANRANST provides customers worldwide with coordinated consulting, supplier sourcing, quality control and finished-part delivery for custom parts, wear parts and industrial spares from China, with scope to support other custom industrial parts.

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Technical Advice

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Match requirements with suitable manufacturers in China and coordinate the exchange of technical information.

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