Polymer Slewing Rings Now Offered by PBC Linear

What Are Slewing Ring Bearings? 

Slewing bearings are specialized bearings designed to provide intermittent rotation in slow-moving applications while supporting heavy loads. They consist of an inner and outer ring, typically constructed from durable materials such as carbon steel, chrome steel, stainless steel, brass, plastic, or anodized aluminum. Most slewing bearings utilize ball bearings or other rolling elements to enable smooth rotation, and they are available in a wide range of diameters—from just a few inches to over three meters—making them indispensable across various industries and applications. 

The construction of slewing bearings is pivotal to their performance. They are designed to manage not only axial loads but also radial and moment loads, ensuring they can withstand the rigors of real-world applications.

How Do Self-Lubricating Slewing Rings Work?

Instead of traditional ball bearings, self-lubricating slewing rings utilize advanced sliding pads to enable smooth movement. These sliding pads are made from EPB13 polymer, which is specially formulated to provide maintenance-free and oil-free operation, resulting in long-lasting, reliable performance. The absence of traditional lubrication means these bearings can operate in environments where oil or grease might be detrimental, such as in clean rooms or other sensitive settings. 

The sliding pads reduce friction between the moving parts, enhancing the bearing's overall efficiency and extending its lifespan. This innovative design allows self-lubricating slewing ring bearings to excel in applications where traditional bearings may struggle.

Benefits of Self-Lubricating Slewing Rings

The key advantage of self-lubricating slewing rings lies in their oil-free, maintenance-free design, making them ideal for clean rooms and hard-to-reach areas. The benefits include:

1. Maintenance-Free Operation: These bearings do not require regular maintenance, which reduces downtime and labor costs.

2. Longevity: With low-friction, replaceable sliding pads, these bearings offer extended service life.

3. High Load Capacity: Self-lubricating slewing rings retain all the benefits of traditional slewing rings, including their ability to handle high loads and intermittent rotation.

4. Versatility: Suitable for a wide range of applications, from robotics to food processing.

This combination of features makes self-lubricating slewing rings an excellent choice for applications demanding reliability and efficiency.

Cost Comparison: Self-Lubricating vs. Traditional Slewing Rings

When it comes to pricing, self-lubricating slewing rings from PBC Linear are competitively priced, often slightly lower than traditional slewing rings of comparable sizes. This is particularly true for the P02 series, which features a polymer inner ring, offering a cost-effective alternative to aluminum or steel options.

PBC Linear Offers Traditional Ball Bearing Slew Rings

Here are several application examples that employ slewing rings:

Robotics

• Robotic Arms: Providing precision and durability for automated tasks.
• Automated Guided Vehicles (AGVs): Enabling smooth navigation and rotation.
• Pick-and-Place Systems: Facilitating efficient product handling and movement.

Renewable Energy

• Small Wind Turbines: Assisting in the rotation and positioning of blades.
• Solar Tracking Systems: Adjusting solar panels to maximize sunlight exposure.

Packaging & Food Processing

- Rotating Packaging Equipment: Ensuring efficient wrapping and sealing.

- Filling Machines: Allowing for consistent and accurate filling.

- Sorting Systems: Enhancing speed and efficiency in product sorting.

Precision Machinery

- CNC Machines: Offering precision in machining processes.

- Laser Cutting Machines: Ensuring accurate cuts and movements.

- Small Indexing Tables: Providing precise positioning for various applications.

Medical Equipment

- Imaging Systems: Supporting X-ray, CT, and MRI machines for accurate imaging.

- Surgical Robots: Ensuring reliable operation in critical applications.

- Patient Handling Systems: Enhancing safety and efficiency in patient transport.

Communication Equipment

- Satellite Dish Positioning Systems: Allowing for precise alignment.

- Antenna Mounts and Trackers: Ensuring optimal signal reception.

- Small Radar Systems: Providing reliable rotation and positioning.

Factory Equipment

- Assembly Tables: Facilitating efficient assembly processes.

- Work Positioners: Allowing for easy adjustment and movement.

- Jib Cranes: Enhancing load handling capabilities.

Furniture

- Seats: Providing functionality for rotating seats in a variety of industries.

- Pivot Desks: Allowing for adjustable workspace configurations.

- Rotating TV Stands**: Enhancing usability and functionality.

Agriculture

- Harvesters: Improving efficiency in harvesting operations.

- Balers: Enhancing performance in packaging agricultural products.

- Irrigation Equipment: Supporting efficient water distribution.

Construction Equipment

- Trenchers: Facilitating precise digging operations.

- Pile Drivers: Enhancing load-bearing capabilities.

- Excavators: Providing reliable rotation and positioning.