Bushings
Machined bushings with the diameter and length of the assembly.
Metal · Custom parts
CNC machining
of bronze.
Parts designed to slide and withstand wear. We manufacture bushings, guides and bronze components by CNC machining.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- CuSn Metal
01 / Why choose this material
Properties and uses
of bronze.
Copper alloy family, typically with tin. Grades for bearings are used in parts subjected to friction and wear.
Bronze groups copper alloys, typically with tin, used in friction components. For a bearing, simply indicating bronze is not enough: load, speed, lubrication, and the contact material help select the alloy.
Learn about the CNC machining process ↗Bronze properties
Reference · CuSn bronze from the Proto&Go! PDF
- Indicative density
- 8.8 g/cm³
- Vickers hardness
- 185–210 HV
- Tin content
- 5–7 %
- Phosphorus content
- 0,10–0,25 %
- Presentation
- Semi-finished for CNC
Hardness and composition of CuSn bronze documented in the PDF. Density is a catalog guideline. Other bronzes have different properties, lubrication, and environmental response.
Material datasheets
- Good wear behavior depending on grade
- Electrical conductor
- Corrosion resistance depending on environment
- Suitable for bushings
Bronze applications
Sliding bearings
Sliding bearings selected according to load and lubrication.
Gears and gearwheels
Gears and bearings with defined wear requirements.
Mechanical guides
Guides for mechanisms working in contact with another surface.
02 / A choice based on usage
Choose bronze
according to your part.
These criteria help define the material, geometry, and working conditions before manufacturing.
01
Load and speed
Define how the part moves and what load it withstands to select an appropriate bearing bronze.
02
Lubrication
Indicate if there will be oil, grease, or dry running. Not all bronzes can be used without lubricant.
03
Service environment
The composition determines the corrosion response. Describe the liquids and contact temperature.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of bronze.
Define visible surfaces and the required result for your part. Requested treatments are included in the quote.
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
The image could not be loaded. Try a different finish.
Reference images: material, geometry, and surface preparation influence the outcome. Special finishes are quoted upon request.
04 / From design to quote
CNC machining
of bronze.
Milling and turning allow manufacturing bronze parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quotePart tolerances
For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in bronze.
The price of machining bronze depends on the geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in bronze.
Properties, applications, and manufacturing: answers to prepare your request.
What is bronze and what properties does it have?
Family of copper alloys, usually with tin. Grades for bearings are used in parts subjected to friction and wear. Hardness and composition of CuSn bronze documented in the PDF. Density is indicative from the catalog. Other bronzes have different properties, lubrication, and response to the environment.
What parts can be machined from bronze?
You can make bushings, plain bearings, worm wheels and gears, and mechanical guides. CNC machining adapts the geometry to your 3D file. Specify the loads, environment and finish so we can review the application.
What bronze can I use to manufacture a bushing?
The alloy depends on the load, speed, contact shaft, and lubrication. Indicate those conditions and the housing tolerances. Bronze bushings are selected based on their in-service behavior, not just by their color or density.
Can a bronze bushing operate without lubrication?
Not all of them. The ability to work dry depends on the grade, design, and load and speed conditions. Not every machined bronze should be assumed to be self-lubricating. Specify that requirement before choosing the material.
Can I replace a bronze bushing with one made of POM?
It can be an alternative in some applications, but you must compare load, temperature, speed, deformation, and wear. POM weighs less; bronze offers a distinct metallic behavior. Dimensions and clearance may also require changes.
How much does it cost to machine a bronze part?
The price of machining bronze depends on the geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload your 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a bronze part?
For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a bronze part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in bronze.
Upload the 3D file. We review feasibility and send you the quote.