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Help CenterOil-Impregnated Sintered Bronze Bushing for Automotive Steering Column, 35mm Length, 20mm ID
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Welcome to Anping County Boli Hardware Wiremesh Products Factory — a trusted manufacturer established in 1998, with over 25 years of experience in producing high-quality precision components. Our Oil-Impregnated Sintered Bronze Bushing for Automotive Steering Column (35mm length, 20mm ID) is engineered to deliver exceptional durability, reduced friction, and long-term reliability in demanding automotive applications. As a factory with an annual export value of US$5–10 million, we serve global markets including North America, Europe, Asia, and Oceania, ensuring consistent quality and competitive pricing.
This bushing is manufactured using advanced powder metallurgy sintering technology, resulting in a porous bronze structure that is vacuum-impregnated with lubricating oil. The self-lubricating design eliminates the need for external grease or frequent maintenance, making it ideal for steering column assemblies where space is limited and reliability is critical. The 35mm length and 20mm inner diameter are precisely machined to meet OEM specifications, ensuring a perfect fit and smooth operation.
Below are the key technical specifications and features of our product:
| Parameter | Value / Description |
| Material Composition | 90% Bronze (CuSn10) + 10% Porosity, Oil-Impregnated |
| Inner Diameter (ID) | 20 mm ±0.02 mm |
| Outer Diameter (OD) | 28 mm (customizable from 25 mm to 35 mm) |
| Length | 35 mm ±0.1 mm |
| Oil Content (by volume) | ≥ 18% (SAE 10 or 20 oil, optional) |
| Compressive Strength | ≥ 150 MPa |
| Operating Temperature | -40°C to +120°C |
| Surface Finish | Ra ≤ 1.6 μm |
Product Features and Benefits:
- Self-Lubricating Design: The oil-impregnated porous structure provides continuous lubrication for the life of the bushing, reducing wear and extending service life. Ideal for applications where re-lubrication is difficult or impossible.
- High Load Capacity: Sintered bronze offers excellent compressive strength, handling radial and axial loads common in steering column assemblies.
- Low Friction Coefficient: The inherent lubricity of the oil-impregnated material ensures smooth rotation and minimal resistance, enhancing steering feel and reducing driver fatigue.
- Corrosion Resistance: Bronze naturally resists corrosion from moisture and road salts, making it suitable for harsh automotive environments.
- Dimensionally Stable: Precision machining ensures tight tolerances (ID ±0.02mm, length ±0.1mm) for consistent performance and easy installation.
- Customizable Options: Available in various outer diameters, lengths, and oil viscosities to meet specific customer requirements. Custom sizes can be produced upon request.
- Cost-Effective: The powder metallurgy process allows for high-volume production with minimal waste, offering a competitive price without compromising quality.
Quality Assurance & Trust:
Anping County Boli Hardware Wiremesh Products Factory has been a reliable manufacturer since 1998. Our annual export value of US$5–10 million is a testament to our global clientele’s trust. We ship from major ports including Tianjin, Qingdao, Shanghai, and Foshan, ensuring timely delivery worldwide. Our main markets span North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and domestic China. Each bushing undergoes rigorous dimensional inspection and oil content testing before shipment. We are committed to providing quality products, competitive pricing, and responsive customer service.
For customers requiring additional certifications or custom specifications, we offer flexible solutions. Our team of engineers can assist with design modifications, material adjustments, and sample testing. Contact us today to discuss your steering column bushing requirements or request a quote. We look forward to building a long-term partnership with you.
Frequently Asked Questions (FAQ)
Q1: What is the typical lifespan of this oil-impregnated bronze bushing in a steering column?
A1: Under normal operating conditions, the bushing can last the lifetime of the vehicle (typically 150,000–200,000 km) due to its self-lubricating properties and durable bronze material. Actual lifespan depends on load, temperature, and contamination.
Q2: Can I use this bushing in other automotive applications, such as suspension or pedal assemblies?
A2: Yes, the 20mm ID, 35mm length bushing can be used in various low-speed, high-load applications where a self-lubricating bearing is required. However, we recommend consulting our engineering team to confirm suitability for specific loads and environments.
Q3: Do you offer custom sizes or specifications?
A3: Absolutely. We can customize outer diameter, length, inner diameter, oil viscosity, and even material composition (e.g., lead-free bronze) based on your requirements. Minimum order quantities may apply for custom sizes.
Q4: Is the bushing completely maintenance-free?
A4: The bushing is designed to be maintenance-free for its intended service life. The oil-impregnated structure provides continuous lubrication. However, in extremely dusty or wet environments, periodic inspection is recommended.
Q5: What is the maximum operating temperature for this bushing?
A5: The standard operating temperature range is -40°C to +120°C. For higher temperature applications, we can supply bushings impregnated with high-temperature oil (up to 180°C) upon request.
Q6: How do you ensure the oil content meets the required specifications?
A6: Each batch is tested using a vacuum oil impregnation process and verified by weight difference before and after impregnation. We also perform oil content analysis per ASTM standards to guarantee ≥18% by volume.
Q7: What packaging options are available for export?
A7: Standard packaging includes plastic bags, cardboard boxes, or wooden pallets. For bulk orders, we can provide custom packaging with anti-rust coating and labeling. We ship from Tianjin, Qingdao, Shanghai, and Foshan ports.
Q8: Can you provide samples before bulk order?
A8: Yes, we offer samples. Please contact our sales team with your shipping details and quantity requirements. Sample fees may apply but will be deducted from the first order.
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