Dust Seal Ring

Excludes dust and protects the upper lubrication area.

Dust Seal Ring

Dust Seal Ring (Dust Seal)— Gyratory Crusher Wear part, position 05.

Installation and Function

Installation PositionAt the dust-seal interface between the main shaft and top shell, corresponding to location 05 in the FLS cutaway diagram marked on this site.
Main FunctionExcludes dust and protects the upper lubrication area.
Replacement FrequencyMedium; replace for cracking, hardening, extrusion, leakage or dust ingress.

Materials and Mechanical Properties

ItemDetails
Material OptionsNBR, HNBR, polyurethane, FKM or OEM-specified elastomer/composite seal
Typical Properties and Acceptance CriteriaVerify compatibility with the lubricant, temperature, dust, cleaning medium and surface speed. Control Shore hardness, tensile and tear properties, compression set, joints and cross-sectional dimensions. Seal life also depends on mating-surface roughness, coaxiality, preload and dust-sealing air supply.
Principal Failure MechanismWear, aging, extrusion, medium incompatibility and leakage

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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Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.

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