Custom Machined Bronze Sleeves to Your Engineering Specifications
Bronze is the material of choice for applications requiring high load-bearing capacity, corrosion resistance, and excellent wear properties. However, purchasing standard-size bronze bushings often requires expensive post-machining or design compromises.
SleeveMFG manufactures custom bronze sleeves directly from your technical drawings or 3D models. We specialize in components that meet specific dimensional, concentricity, and surface finish requirements, ensuring your assembly fits correctly without secondary rework.
Machined to your print
Drawing or 3D model to finished part
- Outside Diameter Range
- Ø3 – 500 mm
- Grinding Tolerance
- ±0.005 mm
- Surface Finish
- Ra 0.2 μm
- Minimum Order
- None
Capabilities
Precision Bronze Manufacturing Capabilities
We move beyond basic turning. Our facility in Dongguan focuses on the technical nuances of machining copper alloys, where process control determines whether a sleeve performs or fails prematurely.
- Heat buildup management when turning and grinding copper alloys.
- Deformation prevention in thin-wall sleeve components.
- Strict bore and outside diameter control for proper fitment, whether you require a press fit or a sliding clearance.
Manufacturing Specifications
| Parameter | SleeveMFG Capability |
|---|---|
| Outside Diameter | Ø3 mm – Ø500 mm |
| Inside Diameter | Ø1 mm – Ø450 mm |
| Length | 3 mm – 1500 mm |
| Turning Tolerance | ±0.01 mm |
| Grinding Tolerance | ±0.005 mm |
| Surface Finish | Down to Ra 0.2 μm |
| Concentricity | Down to 0.01 mm |
| Roundness | Down to 0.005 mm |
Materials
Supported Bronze Alloys
We work with various bronze and copper alloys, selecting material based on your load, speed, and environmental requirements.
Phosphor Bronze
High fatigue resistance and strength for heavy-duty bushings.
Aluminum Bronze
High hardness and excellent corrosion resistance for marine and pump environments.
Leaded Bronze
Enhanced machinability and self-lubricating properties for sliding applications.
Bearing Bronze (SAE 660 / C93200)
Industry standard for general-purpose bearing and sleeve applications.
Beyond the Simple Cylinder
Complex Geometries and Features
Standard sleeves are rarely just simple cylinders. Our CNC turning and milling centers allow us to incorporate the specific features your design requires, reducing the need for multiple vendors.
Send Us Your DrawingLubrication Grooves
Internal or external oil grooves, figure-eight patterns, or grease holes to ensure proper lubrication distribution.
Shoulders and Flanges
To provide axial positioning or thrust surface support.
Keyways and Slots
For positive drive or anti-rotation requirements.
Precision Profiles
Custom internal tapers or external shapes required for specific seal or housing interfaces.
Industries
Applications for Custom Bronze Sleeves
We serve OEMs and maintenance teams who require components that function reliably in demanding environments. By manufacturing to your print, we ensure that the sleeve integrates into your existing assembly without field modifications.
Pumps and Fluid Handling
Seal sleeves and wear-resistant bushings that prevent shaft damage in corrosive or high-pressure environments.
Heavy Machinery
High-load bushings for pivot points, hinge assemblies, and oscillating components.
Marine and Offshore
Corrosion-resistant bronze sleeves for propeller shafts and underwater equipment.
Industrial Automation
Precision spacers and guide sleeves requiring tight ID/OD tolerances for smooth, repeatable motion.
Quality Assurance
Quality Assurance and Inspection
Bronze components often function as sacrificial wear parts or critical bearing surfaces. We verify these parts against your drawing specifications using calibrated inspection equipment.
Every production run includes dimensional verification of critical features, including bore diameter, wall thickness, concentricity, and surface roughness.
We provide inspection reports to verify that our parts meet your specified tolerances before they leave our facility.
Verified on every production run
- ✓ Bore diameter
- ✓ Wall thickness
- ✓ Concentricity
- ✓ Surface roughness
Inspection reports confirm compliance with your specified tolerances before shipment.
Get a Quote
Request a Quote for Your Bronze Sleeves
SleeveMFG supports your project from the prototype phase through to full-scale production. We do not require minimum order quantities that force you to overbuy; we provide the exact quantity your assembly or repair project requires.
To receive an accurate quote, please send your technical drawings (PDF, STEP, DWG, or DXF) to info@sleevemfg.com.
Please include:
- 1 Material Specification: e.g., C93200, C95400
- 2 Quantity: prototype or production volume
- 3 Tolerances and Surface Finish: if not explicitly marked on the drawing
- 4 Application Details: optional, but helps us ensure the correct manufacturing approach
SleeveMFG
Email: info@sleevemfg.com
Send Your Drawing for a Fast Quote
Attach your PDF, STEP, DWG, or DXF files. Our engineers will review your specifications and respond with material recommendations and pricing.