What are the main advantages of the PU Series in high-precision applications?

The PU Series offers high precision and rigidity due to its four-point contact ball structure, which allows it to handle complex loads while maintaining minimal deformation. This design is crucial for applications requiring high-precision motion, such as in robotics and medical equipment.

How does the PU Series compare to traditional double-row ball bearings in terms of space and weight?

The PU Series is designed to be more compact and lightweight compared to traditional double-row ball bearings. This reduction in size and weight is significant, making it ideal for applications where space and weight are critical factors, such as in precision turntables and robotic joints.

PU Series Four-Point Contact Ball Slewing Bearings

Precision and Performance for Heavy Equipment

The PU Series four-point contact ball slewing bearings are engineered for light and medium-duty applications, offering a compact design with excellent performance. These bearings are designed to meet the demands of cranes, excavators, and other heavy machinery, providing high load capacity and precision motion.

Load Capacity

High

Precision

High

Material

High-Quality Steel

Design

Four-Point Contact Ball Structure

Available Models & Specifications

Click on any part number to view detailed CAD drawings and download PDF specifications.

Part Number	Bore (d)	Outer (D)	Width (B)
PU14.0179	mm	mm	mm
PU20.0220	mm	mm	mm
PU20.0260	mm	mm	mm
PU20.0405	mm	mm	mm
PU20.0897	mm	mm	mm

Why PU Series Matters for Precision Applications

The PU Series four-point contact ball slewing bearings are precision-engineered to redefine the standards of compact slewing bearings. With a unique four-point contact ball structure, these bearings can withstand axial, radial, and overturning moments simultaneously, enhancing load capacity and rigidity. This design ensures minimal operational deformation and maintains high-precision motion.

These bearings are particularly suited for applications where space and weight are critical, such as robotic joints and precision turntables. The compact structure and lightweight design of the PU Series significantly reduce installation space and weight compared to traditional double-row ball bearings.

The PU Series is not just limited to its compact size; it also offers significant load-bearing capacity, supporting complex loads from multiple directions. This makes it an excellent choice for a variety of applications, from industrial to medical and aerospace.

High load capacity with compact size
Enhanced rigidity for precise operation
Customizable to specific equipment needs

Technical Specifications and Benefits

STEP 1

Four-Point Contact Ball Structure

The unique four-point contact ball structure allows a single race to handle axial, radial, and overturning moments, increasing load capacity and rigidity.

STEP 2

Lightweight and Space-Saving Design

With smaller dimensions and lower weight, the PU Series reduces installation space and weight, suitable for applications where space and weight are critical.

STEP 3

High Rotational Accuracy

The optimized internal structure and tight manufacturing tolerances ensure high rotational accuracy, providing smooth and precise operation even under load.

STEP 4

High-Quality Materials for Long Life

Made from high-quality materials and precision machined, the PU Series offers long product life and high reliability, ensuring stable operation and reduced maintenance.