Internally Threaded Brass Bushing
Custom internally threaded brass bushings cast and machined to your drawing or worn sample. Brass, tin bronze and aluminum bronze options.
An internally threaded brass bushing combines a machined internal thread with the bearing and wear properties of a cast copper alloy. It is commonly used where a threaded connection must also carry load, locate a shaft, or provide a replaceable wear surface inside a housing. Because the thread and the bore are produced in the same setup, concentricity between the thread axis and the bearing bore can be controlled to the drawing.
Design & materials
Brass offers good wear resistance with a dense internal structure, while high-strength brass provides higher load capacity. Tin bronze is often selected for its anti-friction and corrosion resistance, and aluminum bronze for strength and elevated-temperature mechanical performance. We cast to the grade you specify, including C93200 (SAE 660), C93700, C95400, C86300 and ZCuSn10P1, and can match an original material when a worn part is supplied for reverse engineering. See the full range of copper alloys on our materials page.
Typical applications
- Threaded locating and wear bushings in mining and quarrying machinery
- Replacement bushings for crushers and aggregate processing equipment
- Threaded inserts and sleeves in pumps, valves and hydraulic assemblies
- General industrial machinery requiring a replaceable threaded wear part
Manufacturing & inspection
Melt composition is checked by spectrometer before pouring, and the alloy is adjusted to meet the specified grade. Bushings are usually produced by centrifugal casting, which gives a denser outer structure than static sand casting; sand casting and metal mold casting are also available depending on size and quantity. After casting, parts are CNC machined to drawing, including the internal thread, then checked for composition and hardness in our own laboratory before packing.
Send your drawing or a worn sample for a free evaluation.
Materials
Industries
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 grades | C93200 (SAE 660), C93700, C95400, C86300, ZCuSn10P1, or custom copper alloy |
|---|---|
| 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, including internal thread |
| Inspection | Spectrometer composition check, hardness testing |
| Customization | OEM, per drawing or sample |
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