Drawing and Engineering Review
We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.
Bottom Shell Bushing
Supports the eccentric and main shaft system and maintains the centre of rotation.
Bottom Shell Bushing (Bottom Shell Bushing)— Gyratory Crusher Wear part, position 07.
Location and Function
| Material Options | High-lead/tin bronze, aluminum bronze or OEM-specific centrifugally cast bearing copper alloy |
| Typical Properties and Acceptance Criteria | Requires seizure resistance, embeddability, thermal conductivity and high bearing-pressure capacity. Control composition uniformity, casting porosity, hardness, roundness, cylindricity, flange runout, oil grooves, interference and installed design clearance. Installation damage and contaminated lubricant can cause failure regardless of the nominal grade. |
| 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
OEM installations
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.