Technical Advice
Equipment and part identification, drawing review, material selection and manufacturing feasibility assessment.
Guides the hydraulic piston and mainshaft system and limits radial movement.
Upper Hydraulic Cylinder Bushings (Upper Hydroset Bushing)— Gyratory Crusher Wear part, position 14.
| Installation Position | At the upper guide position of the hydraulic cylinder, corresponding to location 14 in the FLS cutaway diagram marked on this site. |
| Main Function | Guides the hydraulic piston and mainshaft system and limits radial movement. |
| Replacement Frequency | Low to medium replacement frequency; replace for excessive clearance, scoring, overheating, uneven wear or movement out of position. |
| Item | Details |
|---|---|
| Material Options | Centrifugally cast bearing bronze of the C93200/C93800 type, or the copper alloy specified by the OEM |
| Typical Properties and Acceptance Criteria | Carries 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 Mechanism | Sliding or three-body abrasion, localized impact and cracking around fastener holes; contact fatigue, lubricant contamination, temperature rise, seizure and seal failure |
Use these links for preliminary selection. Confirm the complete model, serial or drawing number, drawing revision, dimensions and actual operating conditions to establish fit.
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