What makes the PSA20 Series suitable for heavy-duty machinery?

The PSA20 Series four-point contact ball slewing bearings are designed to handle high axial, radial, and overturning forces, making them ideal for heavy-duty machinery. Their compact and lightweight design also reduces overall weight and saves installation space, which is crucial for large machinery like excavators and cranes.

How do the sealing properties of PSA20 Series bearings contribute to their longevity?

The PSA20 Series bearings feature excellent sealing properties that effectively prevent dust and moisture intrusion. This not only protects the internal components from environmental damage but also extends the service life of the bearings, reducing the need for frequent maintenance and replacement.

PSA20 Series Four-Point Contact Ball Slewing Bearings

PSA20 Series - Precision Rotation Solutions

The PSA20 Series four-point contact ball slewing bearings are engineered to handle axial force, radial force, and overturning moment, offering a robust solution with strong load-bearing capacity, compact structure, and high precision. Ideal for construction machinery and automation equipment, these bearings provide a reliable and efficient performance.

Load Capacity

High

Design

Four-point contact

Installation

Integral structure

Sealing Properties

Excellent

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)
PSA20.1094	mm	mm	mm
PSA20.414	mm	mm	mm
PSA20.544	mm	mm	mm
PSA20.644	mm	mm	mm
PSA20.744	mm	mm	mm

Why Choose PSA20 Series for Heavy-Duty Applications?

The PSA20 Series four-point contact ball slewing bearings are an innovative solution for machinery requiring high load capacity and precision. With a unique raceway design, these bearings form four-point contact with the inner and outer raceways, allowing them to withstand axial and radial forces, as well as overturning moments. This design makes them more compact and lightweight compared to traditional crossed-roller or three-row roller slewing bearings, making them easier to install and reducing overall weight.

These bearings are widely used in various industries, including construction machinery such as excavators and cranes, port machinery like port cranes, and automation equipment such as industrial robots. Their high-quality balls and precision raceway machining ensure low friction and high rotational accuracy, making them suitable for applications requiring precise positioning and smooth rotation.

The PSA20 Series bearings offer a competitive edge over other slewing bearings in their series due to their high load capacity, compact design, and ease of installation. They are designed to optimize performance in complex load environments and ensure smooth equipment operation.

High overall load capacity due to optimized raceway curvature and ball dimensions.
Compact and lightweight design saves installation space and reduces weight.
Low friction and high rotational accuracy for smooth and precise operation.

Key Technical Features of PSA20 Series

STEP 1

High Load Capacity

The PSA20 Series four-point contact ball slewing bearings offer exceptionally high overall load capacity, effectively transferring multi-directional loads to the underlying structure for smooth equipment operation.

STEP 2

Compact and Lightweight Design

Compared to traditional crossed-roller or three-row roller slewing bearings, the PSA20 Series is more compact and lightweight, saving installation space and reducing overall weight.

STEP 3

Smooth Operation and High Precision

High-quality balls and precision raceway machining in the PSA20 Series ensure low friction and high rotational accuracy, making it suitable for applications requiring precise positioning and smooth rotation.

STEP 4

Easy Installation and Low Maintenance

The integral structure of the PSA20 Series slewing bearing makes installation quick and easy. Its excellent sealing properties prevent dust and moisture intrusion, extending service life and reducing maintenance costs.