Mining Machinery Bronze Bushing
Custom-cast bronze bushings for mining and heavy equipment, produced by centrifugal, sand or metal mold casting and machined to your drawing.
Mining machinery bronze bushings are the plain-bearing components that carry shaft loads in crushers, conveyors, screens and other high-duty equipment. In these positions a bronze bushing has to absorb shock, resist seizure against a steel shaft and keep working where lubrication is intermittent. Haishan produces these bushings as custom castings, matched to the alloy and dimensions of your drawing or worn sample.
Design and materials
Alloy choice follows the duty of the joint rather than a single default grade. Tin bronze such as C93200 (SAE 660) is widely used for medium-load, medium-speed bearings, while aluminium bronze C95400 and manganese bronze C86300 are selected where impact and heavy load are present. Where a bushing runs with limited grease access, a graphite-plugged self-lubricating design can be supplied. Dimensions, wall thickness, flange form and oil grooves are made to your drawing.
- Tin bronze and leaded tin bronze for general bearing duty
- Aluminium bronze and manganese bronze for shock and high load
- Graphite-plugged versions for restricted lubrication
- Flanged, cylindrical and thrust forms available
- OEM replacement and reverse-engineered copies from samples
Typical applications
These bushings are used in jaw and cone crusher eccentric positions, conveyor and screen shaft bearings, pump and valve trunnions, and pivot points on construction machinery. Because the operating conditions differ from one plant to another, the alloy and fit are reviewed against the actual load, speed and lubrication before casting. More detail on service conditions is available on our mining industry page and in the bronze bushing category.
Manufacturing and inspection
Casting, machining and checking are carried out in one workshop. Centrifugal casting is used for cylindrical bushings where a denser structure is wanted, while sand casting and metal mold casting cover larger or more complex shapes. Each heat is checked by spectrometer for composition, and finished parts are hardness tested in our own laboratory before dispatch. Send your drawing or a worn sample for a free evaluation.
Materials
Procurement facts
| MOQ | Samples from 1 pc; batch orders quoted per drawing |
|---|---|
| Tolerance | Machined to drawing tolerances |
| Lead time | Confirmed at quotation, per drawing and quantity |
Specifications
| Materials | C93200 (SAE 660) tin bronze, C95400 aluminium bronze, C86300 manganese bronze, custom alloys |
|---|---|
| Casting process | Centrifugal casting, sand casting, metal mold casting |
| Size range | Castings from 20 mm to 6000 mm diameter, 0.1-15000 kg; specific parts made to drawing |
| Machining | In-house CNC machining to drawing |
| Inspection | Spectrometer composition check, hardness testing |
| Customization | OEM replacement, per drawing or sample |
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