Oil Groove Bronze Bushing for Heavy Equipment
Custom oil groove bronze bushings cast and machined to your drawing, with machined lubrication channels for reliable oil film distribution in heavy equipment.
Oil groove bronze bushings sit between the main shaft and the support frame of heavy transmission equipment, where loads are high and lubrication is critical. Machined oil channels distribute lubricant across the working surface, helping maintain an oil film, reduce sliding friction and protect the mating steel shaft from wear. Because fit clearance between the bushing, shaft and steel housing is a key technical point, material selection and dimensional accuracy both matter.
Design and materials
Oil groove geometry — groove pattern, pitch and depth — is machined to suit the lubrication method and load direction of your equipment. Common choices include C93200 (SAE 660) tin bronze for medium-load service, C93700 where dirt or grit is present, and C95400 aluminium bronze for higher impact and wear resistance. If you can supply a worn sample or original drawing, we can match the original alloy and reverse engineer the groove layout.
- Grooves machined to drawing or sample, including helical and straight patterns
- Alloys selected for load, speed and lubrication conditions
- Wall thickness and clearance held to drawing tolerance
- Options for graphite-plugged self-lubricating designs where oil supply is limited
Typical applications
These bushings are commonly used in crushers, mills, conveyors, pumps and other heavy machinery where a shaft rotates or oscillates under load. In many mining and aggregate applications, the bushing is a replaceable wear part that protects the more expensive shaft and housing.
Manufacturing and inspection
We combine casting and machining in one workshop, using centrifugal casting, sand casting or metal mold casting as the part requires. Centrifugal casting gives denser material than sand casting, which suits bushing walls. Each batch is checked with spectrometer composition analysis and hardness testing before machining, and finished dimensions are verified against your drawing. See our centrifugal casting process and quality control steps for details.
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
| Material | C93200 (SAE 660) tin bronze, C93700, C95400 aluminium bronze; other alloys on request |
|---|---|
| Casting process | Centrifugal casting, sand casting or metal mold casting |
| Size range | Castings from 20 mm to 6000 mm diameter, 0.1-15000 kg; made to drawing |
| Machining | In-house CNC machining to drawing, including oil groove cutting |
| Inspection | Spectrometer composition check, hardness testing |
| Customization | OEM replacement, per drawing or sample, reverse engineering |
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