Upper Hydraulic Cylinder Bushings

Guides the hydraulic piston and mainshaft system and limits radial movement.

Upper Hydraulic Cylinder Bushings

Upper Hydraulic Cylinder Bushings (Upper Hydroset Bushing)— Gyratory Crusher Wear part, position 14.

Installation and Function

Installation PositionAt the upper guide position of the hydraulic cylinder, corresponding to location 14 in the FLS cutaway diagram marked on this site.
Main FunctionGuides the hydraulic piston and mainshaft system and limits radial movement.
Replacement FrequencyLow to medium replacement frequency; replace for excessive clearance, scoring, overheating, uneven wear or movement out of position.

Materials and Mechanical Properties

ItemDetails
Material OptionsCentrifugally cast bearing bronze of the C93200/C93800 type, or the copper alloy specified by the OEM
Typical Properties and Acceptance CriteriaCarries the upper guide loads in the hydraulic mainshaft positioning system. It requires resistance to seizure, embeddability, thermal conductivity and dimensional stability. Verify composition, porosity, hardness, cylindricity, coaxiality, oil grooves, surface finish, interference fit and running clearance. Upper and lower bushings are not interchangeable merely because they look alike.
Principal Failure MechanismSliding or three-body abrasion, localized impact and cracking around fastener holes; contact fatigue, lubricant contamination, temperature rise, seizure and seal failure

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.

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.

Discuss Your Upper Hydraulic Cylinder Bushings and Request a Quote

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Manufacturing Services in China

From Technical Assessment to Finished-Part Delivery

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.

01

Technical Advice

Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.

02

Supplier Introductions

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

03

Quality Control

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

04

Finished-Part Delivery

Coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts.

Provide the existing model, drawings, drawing or part numbers, materials or operating conditions so we can identify the appropriate technical review and supply route.

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