Can pressed steel pillow block bearings withstand shock loads?
Jul 21, 2026
In the world of industrial machinery, the ability of components to withstand shock loads is a critical factor in ensuring reliable and efficient operation. Among these components, pressed steel units play a significant role in supporting rotating shafts and reducing friction. As a supplier of pressed steel units, I often receive inquiries about their performance under shock load conditions. In this blog post, I will explore the question: Can pressed steel units withstand shock loads?
Understanding Shock Loads
Before delving into the capabilities of pressed steel units, it's essential to understand what shock loads are. Shock loads are sudden, high - magnitude forces that act on a component for a short period. These loads can occur due to various reasons, such as sudden starts or stops of machinery, impacts from falling objects, or vibrations caused by uneven surfaces. Shock loads can be much higher than the normal operating loads, and they pose a significant challenge to the durability and performance of bearings.
Construction And Design Of Pressed Steel Pillow Block Bearings
Pressed steel units are typically made from high - quality steel that is pressed into the desired shape. The construction process involves stamping and forming the steel to create a housing that encloses the bearing. This design offers several advantages, including cost - effectiveness, lightweight, and good corrosion resistance.
The housing of a pressed steel unit provides support and protection for the bearing. It is designed to be rigid enough to hold the bearing in place and distribute the load evenly across the bearing surface. The bearing itself, usually a ball or roller bearing, is responsible for reducing friction and enabling smooth rotation of the shaft.
Factors Affecting The Ability To Withstand Shock Loads
Material Quality
The quality of the steel used in the pressed steel units is crucial. High - grade steel with good mechanical properties, such as high yield strength and toughness, is more likely to withstand shock loads. The steel should be able to absorb the energy from the shock without deforming or cracking.
Bearing Type
The type of bearing used inside the pillow block also affects its shock - load resistance. Ball bearings are generally better at handling high - speed, low - load applications, while roller bearings are more suitable for high - load and shock - load conditions. Roller bearings have a larger contact area with the raceway, which allows them to distribute the load more evenly and withstand higher forces.
Housing Design
The design of the pressed steel housing plays a vital role in shock - load resistance. A well - designed housing should have sufficient thickness and reinforcement to prevent deformation under shock loads. The shape of the housing can also affect its ability to distribute the load. For example, a housing with a more rounded or contoured shape may be better at dissipating the energy from a shock.
Performance Of Pressed Steel Pillow Block Bearings Under Shock Loads
In general, pressed steel units can withstand a certain level of shock loads. However, their performance depends on the factors mentioned above. For light to moderate shock loads, well - designed and high - quality pressed steel units can perform reliably.
In applications where shock loads are frequent and severe, additional measures may be required. For example, using bearings with higher load ratings, upgrading to roller bearings, or adding shock - absorbing elements such as rubber mounts or dampers.
Case Studies
conveyor system
In a conveyor system, the bearings are often subjected to shock loads when heavy objects are loaded onto the conveyor. A company using SAPP2/SBPP2 Pressed Steel units found that the bearings were able to handle the shock loads from the intermittent loading of heavy packages. The high - quality steel housing and the well - designed bearing inside provided sufficient support and durability.
another application
In another application, a machine tool was experiencing shock loads due to the rapid movement of the cutting tool. By replacing the original bearings with SAPFL2/SBPFL2 pressed steel oval housing units, the company was able to reduce the wear and tear on the bearings and improve the overall performance of the machine. The oval housing design helped to distribute the shock loads more effectively.
Limitations
Limitations
It's important to note that pressed steel units do have limitations when it comes to shock loads. If the shock loads are extremely high or occur too frequently, the bearings may experience premature failure. The housing may deform, the bearing may wear out quickly, or the raceway may crack.
In such cases, it may be necessary to consider alternative bearing solutions, such as cast iron pillow block bearings or more specialized shock - resistant bearings.
Our Product Range And Solutions
SAPP2/SBPP2 Pressed Steel Pillow Block Units
As a supplier of pressed steel pillow block bearings, we offer a wide range of products to meet different application requirements. Our SAPP2/SBPP2 Pressed Steel Pillow Block Units are designed for general - purpose applications and can handle light to moderate shock loads. They are cost - effective and easy to install.
SAPFL2/SBPFL2 pressed steel oval housing units
Our SAPFL2/SBPFL2 pressed steel oval housing units are suitable for applications where space is limited and a more compact design is required. The oval shape helps to distribute the load and provides better shock - load resistance.
SAPF2/SBPF2 pressed steel round flange units
The SAPF2/SBPF2 pressed steel round flange units are ideal for applications where a secure mounting is needed. The round flange design provides a stable base and can withstand higher loads.
Pressed Steel 3 Bolt Flanged Units
For more demanding applications, our Pressed Steel 3 Bolt Flanged Units offer enhanced support and shock - load resistance. The three - bolt design provides a more secure mounting and better load distribution.
Contact Us For Procurement
If you are looking for high - quality pressed steel pillow block bearings that can withstand shock loads, we are here to help. Our team of experts can provide you with detailed information about our products, assist you in selecting the right bearings for your application, and offer technical support. Whether you are in the manufacturing, mining, or transportation industry, we have the solutions to meet your needs. Contact us today to start a procurement discussion and find the best bearing solution for your machinery.
sales@winstarbearing.com
+86 16632960682
