Bronzeoilless.com offers high-quality oilless bearings, ideal replacements for rolling bearings and copper alloy bearings in demanding high-pressure, high-temperature, and high-accuracy applications.

These self-lubricating bushings offer durability and maintenance-free operation, making them suitable for various industrial uses. Our range includes: Wear Plates for high-load, low-friction applications; Thrust Washers for axial loads and rotational movement; Split Bronze Bushings for easy installation in heavy machinery; Spherical Self-Lubricating Bearings for multi-directional movement; and Flanged Bushings for combined radial and axial loads in high-friction environments.

Available in diverse sizes and configurations, these oil-free bushings feature a high-strength casting bronze structure embedded with solid lubricants. This design ensures cost-effectiveness, adaptability, wear resistance, and superior performance under high loads and oil-free conditions, addressing needs unmet by traditional copper bushings.

Oilless bearings eliminate costly oil feeding systems, reducing maintenance and oil consumption. Designed for high-load, low-speed applications, these bearings utilize a rotational cast, high-strength bronze body and a specially formulated graphite lubricant. Their durability and self-lubricating properties make them ideal for demanding environments. Key applications include:

• Automotive Industry: Steering Systems: Spherical plain bearings minimize friction in steering linkages for improved precision and durability.

Transmissions: Bronze-graphite bushings endure high rotational speeds without lubrication.

• Construction Machinery: Excavator Joints: Split bushings simplify pivot point maintenance and resist dust and moisture.

• Industrial Equipment: Hydraulic Presses: Flanged bushings offer stability under extreme pressure, reducing downtime.

Below is just a fraction of the industries oilless bearing are widely utilized. Contact us today to discuss your application requirements.

• Place where lubrication cannot be applied or lubrication is dangerous.
• Place where the product can be contaminated or failure is occurred due to lubrication.
• Low / High temperature, under-water, and place that is exposed to chemicals.
• place that can prevent a decrease in productivity due to machine stop while lubricating.
• Place where oiling is not effective due to harsh conditions such as frequent stop motion.
• Impact and vibration, high-load low-speed motion, rust occurrence, foreign substance penetration.
• Sliding motion, angular pitching motion.

Oilless Bushings:

Dry Lubrication: Suitable for high/low temperatures, corrosive environments, and applications where oil lubrication is ineffective, such as high-load/low-speed, reciprocating, impact, angular pitching, and frequent stop motion. Designed for operation without lubrication, particularly at low speeds. High-speed use may lead to seizure or reduced lifespan due to the higher friction coefficient of solid lubricants.

Liquid Lubrication: Ideal for high-speed, light to medium load applications. Liquid lubrication creates an oil film, preventing metal-to-metal contact; however, regular oiling is required. Unsuitable for extreme temperatures, corrosive atmospheres, high-load/low-speed, reciprocating, impact, angular pitching, frequent stop motion (where oil film formation is difficult), and high load/high-speed conditions due to excessive PV values and potential lifespan reduction.

Bronze-graphite composites are widely favored for oilless bushings due to their unique properties:

• Material Composition:
  • Bronze Alloys (e.g., CuSn8P): High thermal conductivity and wear resistance, ideal for high-speed applications.
  • Graphite Inclusions: Act as solid lubricants, reducing friction coefficients by up to 60% compared to traditional bearings.

Why Choose Bronze-Graphite?

• Thermal Stability: Withstand temperatures up to 300°C, critical for automotive brake systems or industrial furnaces.
• Self-Lubricating Mechanism: Graphite releases lubricating films under friction, ensuring smooth operation in vacuum or dusty environments.
• Cost Efficiency: Eliminates the need for oil pumps or grease fittings, reducing long-term operational costs.