Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Lower Head Bushing
Provides the main radial sliding bearing interface between the crushing head and eccentric assembly.
Lower Head Bushing (Lower Head Bushing)— Cone Crushers Wear part, position 11.
Location and Function
| Material Options | OEM-specified centrifugally cast bearing copper alloy |
| Typical Properties and Acceptance Criteria | Carries high radial bearing pressure and oscillating sliding loads. Control copper alloy soundness, composition uniformity, hardness, coaxiality, cylindricity, oil grooves and surface roughness. Verify anti-rotation and axial-retention features and installation interference to prevent bushing migration, rotation or local hot spots. |
| Principal Failure Mechanism | Sliding or three-body abrasion, localized impact and cracking around fastener holes; contact fatigue, lubricant contamination, temperature rise, seizure and seal failure |
Information Required for RFQ
- Equipment manufacturer, machine model, serial number, model details 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 Pages
Equipment, Materials and OEM Installations
Use these links for engineering pre-selection. Final fit must be checked against the full model, serial number, drawing revision, dimensions and actual duty.
Equipment
Independent aftermarket information. OEM names and trademarks belong to their owners and do not imply authorization, affiliation or endorsement. Confirm the series, full model, serial number, drawings and duty before manufacture.