Graphite-embedded tin bronze bushings, also known as solid-lubricated tin bronze bushings or graphite-inlaid bronze bearings, are made by embedding or pressing solid graphite lubricants into a tin bronze base.
This type of bushing combines the high strength, load capacity, and wear resistance of tin bronze with the self-lubricating properties of graphite. During operation, graphite forms a uniform lubricating film on the friction surface, significantly reducing the coefficient of friction and wear. It minimizes the need for oil or grease, allowing reliable operation even under oil-deficient or oil-free conditions.
Product Core selling points
◼ Reduced Maintenance & Lubrication Costs: Long-term self-lubricating performance minimizes the need for lubricants, helping your company save on maintenance expenses.
◼ Extended Equipment Lifespan: Graphite lubrication film reduces wear, increasing overall service life and lowering downtime risks for your company.
◼ Reliability in Harsh Conditions: Whether under high temperature, oil shortage, or heavy load, the bushings maintain stability and ensure your company's equipment runs continuously.
◼ Improved Production Efficiency: Less downtime due to wear and maintenance enables your company to sustain higher productivity levels.
◼ Customizable Solutions: Bronze bushing manufacturers can design and supply custom bronze bushings tailored to your company's equipment and working conditions.
Quality Control & Manufacturing Process
◼ Material Selection: Premium tin bronze alloy ensures strength and wear resistance.
◼ Precision Machining: CNC processing guarantees tight tolerances and smooth finish.
◼ Graphite Embedding: Solid graphite plugs provide long-term self-lubrication.
◼ Heat Treatment & Finishing: Improves hardness, friction resistance, and durability.
◼ Quality Inspection: Tested under ISO 9001 standards for reliability.
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
| Inner Diameter | 4 - 6 | 8 - 10 | 12 - 18 | 19 - 30 | 32 - 50 | 55 - 80 | 85 - 120 | 125 - 180 | 190 - 200 |
|---|---|---|---|---|---|---|---|---|---|
| Tolerance |
+0.022 +0.010 |
+0.028 +0.013 |
+0.034 +0.016 |
+0.041 +0.020 |
+0.050 +0.025 |
+0.060 +0.030 |
+0.071 +0.036 |
+0.083 +0.043 |
+0.096 +0.050 |
| Outer Diameter | 6 - 10 | 12 - 18 | 19 - 30 | 32 - 50 | 55 - 80 | 85 - 120 | 130 - 180 | 190 - 230 | - |
| Tolerance |
+0.015 +0.006 |
+0.018 +0.007 |
+0.021 +0.008 |
+0.025 +0.009 |
+0.030 +0.011 |
+0.035 +0.013 |
+0.040 +0.015 |
+0.046 +0.017 |
- |
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: Can these bushings operate without external lubrication?
A: Yes, the graphite plugs provide long-term self-lubrication, allowing reliable operation even under oil-free or low-lubrication conditions.
Q: What is the load capacity of these bushings?
A: Load capacity depends on size and design, but tin bronze with graphite can handle medium to heavy loads in harsh environments.
Q: Are custom sizes available?
A: Yes, as a bronze bushing manufacturer we can provide custom bronze bushings according to your company's drawings and specifications.
Q: What is the temperature range for operation?
A: Typically between -40°C and +300°C, depending on application and working conditions.
Q: How do you ensure product quality?
A: Every bushing is manufactured under ISO 9001 standards with strict inspection for dimensions, hardness, and lubrication performance.
Hot Tags: graphite added bronze tin bushing, China, suppliers, manufacturers, factory, wholesale, customized