Square hole oiled bronze bushings are manufactured using the powder metal process.
This process molds the bronze mixed powder into the required shape and then presses it.
It is made by heating in an oven to bind the particles and ensure the uniform distribution of pores between the bronze particles.
After this, the product needs to be further pressed to form the required shape and size.
The bronze bushing is then oil-impregnated, and the bronze particles absorb the oil through the gaps between the particle points, forming a uniform oil film on the entire surface of the component for lubrication or corrosion resistance.
To increase strength and hardness, the product can be heat treated.
Obviously, the metal powder process is a very cost-effective process.
If there is a higher precision requirement for the final size of the product, the product can be processed again to achieve the required shape and size.

Westsing Square Hole Oiled Bronze Bushings – Self-lubricating, Highly Durable Linear Motion Solutions
Welcome to Westsing’s Square Hole Oiled Bronze Bushings, a high-performance self-lubricating bearing designed for modern industrial needs. With its unique square hole design and premium oiled bronze material, this product excels in HVAC systems, mechanical equipment, and linear motion applications. Below is a comprehensive introduction to the product, covering product features, benefits, application scenarios, and technical specifications, designed to provide you with detailed information to help you make purchasing decisions while optimizing social media sharing and search engine exposure.
Product Description
Westsing Square Hole Oiled Bronze Bushings are manufactured using an advanced powder metallurgy process, which is a solid component with a porous structure made by pressing bronze powder into shape and sintering it at high temperature. These tiny pores are impregnated with lubricating oil, forming a built-in self-lubricating system. When the equipment is running, the bushing releases an oil film, effectively reducing friction and wear, and extending service life. Its unique square hole design is designed to fit square shafts, ensuring that the shaft only slides linearly in the bushing without rotating, which is very suitable for occasions requiring precise linear positioning.
Features and Benefits
This square hole oil-impregnated bronze bushing combines many leading features in one, making it the preferred product on the market:
- Self-lubricating performance: The oil-impregnated design allows the bushing to automatically release lubricating oil during operation, reducing the friction coefficient, eliminating the need for additional lubrication, and extending the life of the components.
- Square hole design: Customized for square shafts, preventing shaft rotation, ensuring stable linear motion, and meeting specific mechanical needs.
- High durability: Made of C93200 bronze, it has excellent strength and corrosion resistance and can adapt to a variety of complex working environments.
- Low maintenance cost: The self-lubricating property greatly reduces the need for external lubrication, reducing maintenance frequency and operating costs.
- Precision manufacturing: Powder metallurgy technology ensures high-precision dimensional control, meets strict tolerance requirements, and provides reliable performance.
Application Scenarios
With its versatility and reliability, Westsing square hole oil-impregnated bronze bushings are widely used in the following fields:
- HVAC systems: used in fire dampers or other actuators to provide smooth linear motion control and ensure efficient operation of the system.
- Mechanical equipment: suitable for parts that require linear sliding, such as guides, sliders or positioning devices, to improve equipment accuracy.
- Furniture and building hardware: can be used for drawer slides, door mechanisms, etc., to provide a smooth and durable sliding experience.
- Automotive and aerospace: achieve precise linear positioning in specific components to meet high-standard industrial needs.
Technical Specifications
Here are the core technical parameters of Westsing square hole oil-bearing bronze bushings:
- Material: C93200 bronze (high strength, corrosion resistance)
- Manufacturing process: powder metallurgy technology
- Lubrication method: oil-impregnated self-lubricating
- Size: square hole size can be customized to meet diverse application requirements
- Load capacity: suitable for medium and low loads, high-speed operation scenarios
For more detailed technical information or customized specifications, please contact Westsing’s professional team for support.
User feedback
Westsing’s customers have praised this product. An HVAC system engineer shared, “The square hole oil-impregnated bronze bushing has significantly improved the performance of our fire dampers, reduced maintenance time, and ensured long-term stable operation of the system.” Another mechanical manufacturing professional said, “Its square hole design is a perfect fit for our linear motion needs, and the self-lubricating function has completely eliminated the trouble of regular lubrication.”
Contact Us
Want to learn more about Westsing square hole oil-impregnated bronze bushings, or need quotes and customization services? Please visit our official websitehttps://www.westsing.com, or contact the sales team directly. We are committed to providing you with professional solutions to help your project succeed!
Summary
Westsing square hole oil-impregnated bronze bushings are a high-quality bearing product that combines self-lubrication, high durability and high performance. Carefully crafted through powder metallurgy, it not only reduces maintenance costs, but also significantly improves the operating efficiency of equipment in a variety of environments. Whether you are engaged in HVAC system design, mechanical manufacturing, or other industrial applications, this bushing can bring you excellent value. Choose Westsing to make your equipment run smoother and more reliable!
-Square hole bushings, oil-impregnated bronze bushings, self-lubricating bearings, linear motion bushings, HVAC system bearings, mechanical equipment accessories, high-performance bushings

