The self-lubricating flanged bronze bearing is a high-performance sliding bearing designed to reduce mechanical friction and extend equipment life. Made from premium bronze alloys such as tin bronze or aluminum bronze, it offers excellent wear resistance and load-bearing capacity. The bearing surface is embedded with solid lubricants, typically graphite, enabling stable operation without the need for external lubrication.
The flanged design provides axial positioning, ensuring secure installation and preventing axial displacement. Its self-lubricating feature significantly lowers friction coefficient and operating temperature, while reducing maintenance frequency and lubrication costs. This makes it ideal for high-speed, heavy-load, or hard-to-access machinery.

Product Core selling points
◼ Reduce Operational Costs: Self-lubricating bearings lower maintenance expenses and decrease downtime, saving your company money over the equipment lifecycle.
◼ Increase Equipment Reliability: Stable, low-friction operation minimizes unexpected failures, ensuring uninterrupted production for your company.
◼ Simplify Installation & Replacement: Flanged design allows fast and secure mounting, reducing labor costs and downtime for your company.
◼ Support High-Performance Applications: Suitable for heavy-load and high-speed machinery, helping your company expand operational capacity.
Quality Control & Manufacturing Process
◼ Material Selection: High-quality tin or aluminum bronze ensures durability and load capacity.
◼ Precision Machining: CNC processing guarantees accurate dimensions and smooth operation.
◼ Embedded Lubricants: Graphite is integrated for consistent self-lubrication.
◼ Surface Finishing: Polished surfaces reduce friction and wear.
◼ Strict Inspection: Dimensional, hardness, and friction tests meet ISO9001 standards.

Custom Sintered Bronze Bushing Parameter Table: Non-standard Customization Available
Welfine's bronze bushings are custom-designed to the highest level of precision to ensure they meet stringent tolerances and specifications. Our goal is to achieve the lowest possible coefficient of friction based on operating conditions (e.g., load, speed, motion type, environment, temperature, etc.).
Our custom bushings offer a long service life under the following conditions
| Parameter | Specification | Notes |
|---|---|---|
| Inner Diameter (ID) | 10–200 mm | Customizable |
| Outer Diameter (OD) | 20–250 mm | With flange included |
| Length / Thickness | 10–100 mm | Depending on application |
| Material | Tin Bronze / Aluminum Bronze | High wear resistance |
| Embedded Lubricant | Graphite or Solid Lubricant | Self-lubricating surface |
| Load Capacity | 50–500 MPa | Varies by alloy and size |
| Hardness | 80–150 HB | Brinell hardness |
| Friction Coefficient | 0.05–0.15 | Dry or limited lubrication |
| Operating Temperature | -40°C to +250°C | Depending on lubricant type |
| Max Sliding Speed | 3 m/s | Typical for heavy-duty use |

wholesale bronze bushings Manufacturer
Jiande Welfine Technology Co., Ltd. is a light-duty bronze bushing manufacturer ,we have been deeply engaged in the powder metallurgy field for 21 years, advanced production equipment, and ISO/IATF certifications, we provide high-quality bronze, iron, and stainless steel bushings to global customers. Our strength lies in customization, stable quality, and reliable service, making us a trusted partner in automotive, industrial, and machinery sectors.
FAQ
Q: How fast can the bearing rotate?
A: Maximum sliding speed is typically 3 m/s for heavy-duty applications.
Q: Are flanged bearings easier to install than standard bearings?
A: Yes, the flange provides axial positioning, simplifying installation.
Q: What industries use these bearings most?
A: Industrial machinery, marine equipment, construction machinery, and automation systems.
Q: Can the bearings withstand high-speed rotation?
A: Yes, with proper alloy selection and embedded lubrication, they perform well under high speed.
Q: Do you provide ISO or quality certifications?
A: Yes, our bearings comply with ISO9001 and other relevant industrial standards.
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