POM Series: Low-Maintenance Composite Plain Bearings with Steel Backing and POM Sliding Layer

Introduction to POM Composite Bearings

The POM Series is recognized for its exceptional design and functionality. Featuring a steel backing combined with a POM (Polyoxymethylene) sliding layer, these bearings are ideal for applications requiring low maintenance and high performance under grease-lubricated conditions. The hallmark of the POM Series is its distinctive yellow POM sliding layer, which is lead-free and perfect for applications where oil or grease lubrication is necessary. The bearings come with an option for surface protection using either tin or bronze coatings, offering enhanced durability and performance.

Key Features of POM Bearings:

• Lubrication Depots: POM plain bearings are designed to hold lubricants in specific pockets, ensuring extended performance without frequent maintenance.
• High Load and Low-Speed Applications: Ideal for environments with high loads and low speeds, these bearings offer excellent damping properties.
• Material Composition: The bearings are made from a steel or bronze backing with a POM sliding layer, offering excellent wear resistance and minimal friction.
• Versatility: Available in various forms including cylindrical bushings, thrust washers, and sliding strips, the POM Series meets the standards of DIN 1494 and ISO 3547.

Product Advantages:

• Low-Maintenance Operation: With self-lubricating properties, these bearings require minimal maintenance.
• Environmentally Friendly: The lead-free, RoHS-compliant material ensures safety and compliance with modern environmental standards.
• Durability: These bearings are highly resistant to wear, ensuring long-term use even in harsh conditions.
• Suitable for Contaminated Environments: The lubricant retention feature makes these bearings ideal for applications where continuous lubrication is difficult.

Applications:

• Lifting and Hoisting Equipment
• Guideways
• Hydraulic and Pneumatic Devices
• Hydraulic Motors
• Ski Lifts
• Medical and Scientific Equipment
• Textile Machinery
• Agricultural and Construction Machinery
• Steering Gears

Custom Solutions for Unique Applications:

In addition to standard POM bearings, we offer customized solutions to meet specific requirements. Our custom offerings include:

• Special Sizes and Shapes: Tailored bushings, thrust washers, and sliding plates.
• Customized Coatings: POM bushings are available in custom colors such as black, or with bronze and stainless steel backings.
• Special Features: POM bushings with elongated holes, lubrication grooves, or custom embossing.

Grease-Lubricated Applications and Maintenance:

POM composite bearings are designed to operate in environments where lubrication is either marginal or intermittent. The sliding surface contains grease reservoirs that should be filled before installation. While these bearings are self-lubricating, adding lubricant periodically can further extend their lifespan and protect against corrosion.

Lubrication and Shaft Requirements:

• Shaft Tolerance: h7 – h8
• Housing Tolerance: H7
• Shaft Roughness: Ra 0–0.8 µm
• Shaft Hardness: HB 150 – 600

Technical Specifications:

• Static Load Capacity: ≤ 250 N/mm²
• Dynamic Load Capacity: ≤ 140 N/mm²
• Sliding Speed: ≤ 2.5 m/s
• Friction Value: 0.04 µ to 0.12 µ
• Temperature Resistance: -40°C to +130°C
• Max. PV Value: 2.8 N/mm² x m/s

POM Composite Bearing Construction:

POM composite bearings are designed with three main layers:

1. Steel or Bronze Backing: Provides mechanical strength and stability.
2. Sintered Bronze Layer: Facilitates heat conductivity and bonding with the sliding layer.
3. POM Sliding Layer: Features lubrication pockets that reduce friction and wear, enhancing self-lubricating capabilities.

Advantages of POM in Rubber Machinery:

POM composite bearings offer significant improvements in rubber machinery, especially in reducing oil leakage. This characteristic is crucial for preventing environmental contamination, reducing waste, and improving product quality. POM bearings also excel in high-temperature environments, making them a superior choice compared to other materials like nylon or copper.

Conclusion:

Whether you need standard or custom POM composite bearings, our products provide reliable performance with minimal maintenance. With a wide range of applications across industries such as agriculture, automotive, and construction, these bearings are a trusted solution for demanding environments. For tailored solutions or to find the perfect bearing for your application, contact us today!

Order Your Custom POM Bearings Today!

 

 

Down the composite bushing data sheets