Across industrial, construction and automotive applications, plain bearings, also known as bushings or plain bushes, continue to play a vital role in modern machinery. Engineered for strength and consistency, plain bearings are used to support heavy loads, manage friction and maintain reliable performance under the most demanding operating conditions. This versatility makes them an essential component in almost anything from heavy-duty equipment to precision mechanical systems.
Unlike rolling bearings which depend on rolling elements, plain bearings / plain bushes operate through direct contact between the rotating shaft and bearing surface. This simple yet effective design allows for controlled relative motion and enhanced durability with excellent wear resistance. Plain bearings consist of a ‘sleeve’ that fits over a sliding or rotating shaft. As such, these bearings offer extremely long lifespans. Plain bearings are also known as sleeve bearings or journal bearings. These terms are generally interchangeable.
At SBS – Singa Bearings Solutions®️, innovation meets performance. SBS specialises in modern and advanced plain bearing solutions designed to support radial and axial loads while minimising friction and maximising efficiency. Our expertly engineered products are built to perform, reducing friction and delivering longer service lives under dynamic loads and rotating or oscillating motion.
Let’s dive further into the advantages of plain bearings and discover how SBS’s specialist team delivers plain bearing solutions tailored for you!
Plain Bearing Applications
The applications for plain bearings span wide and vast.
Plain bearings are used in a variety of industries. They are used in countless applications, wherever rotational motion must be allowed to change the alignment of its rotation axis. In comparison to ball bearings or roller bearings, plain bearings tend to be most suitable in applications requiring high loads, friction control, optimal reliability and long lifespans. This makes them very suitable for impact loads too.
At SBS, plain bearings can be found in mining, hydropower, marine/offshore, steel, agricultural and construction machinery/applications. Various industries call for various material solutions, each with their own special set of pros and cons.
Read more about our product variety here: https://sbs-bearings.com/bearing-it-together-from-ground-to-water#more-9964
Don’t let high loads and tough settings scare you. Let’s explore the flexibility of plain bearings further!
Different types of Plain Bearings
SBS presents a versatile range of plain bearings, carefully engineered to perform across a wide spectrum of mechanical applications. From innovative lubrication-free solutions, conventional grease-bound heavy-duty materials to advanced hydrodynamic bearings, plain bearings support smooth, reliable motion in countless industries delivering efficiency where it matters most.
What truly sets SBS apart is our extensive selection of materials, allowing the tailoring of each bearing solution to precise operational demands. Whether prioritising durability, reduced friction, or performance in challenging environments, SBS ensures the right fit for every requirement.
Let’s take a closer look at the diverse range of plain bearings SBS has to offer and discover how each type is designed to meet specific engineering needs!
Maintenance-Free Plain Bearings
Maintenance-free plain bearings are an essential solution for applications where regular lubrication or servicing is limited. Engineered for convenience and durability, plain bearings deliver consistent, low-friction performance without the need for ongoing maintenance. By incorporating self-lubricating materials, solid lubricants and advanced sliding layer technologies, these bearings operate smoothly over extended periods.
Designed to reduce downtime and maintenance costs, maintenance-free plain bearings provide exceptional reliability across a wide range of demanding applications. In addition to their technical advantages, maintenance-free plain bearings are widely recognised as an environmentally friendly choice. By eliminating the need for oil or grease, they significantly reduce the risk of contamination while minimising waste generation throughout their service life. This makes them an increasingly popular option for organisations aiming to go green without compromising on performance or longevity.
Plastic Bearings
Plastic bearings, including composite bushings, have become increasingly popular. These bearings deliver reliable, low-friction performance, offering a lightweight alternative to traditional metal bearings. They are also relatively cost effective when compared with metal bearings.
Plastic bearings mostly come as self-lubricating and lead-free. This makes composite bearings suitable for industrial sectors wherein external lubrication and/or grease supply is not feasible. With their combination of cost-effectiveness, and high-performance capabilities, plastic bearings continue to gain traction as a smart, future-focused solution for modern machinery and equipment.
COM-KU®/D
SBS’s COM-KU®/D features fibre-reinforced plastic composite. It is maintenance-free, has great sliding properties and is suitable for high load capacities (as well as impact and edge loads). This plain bearing has been a staple in the market for 40 years, boasting a long lifespan, good chemical resistance and upstanding damping features. All which make it a top contender to replace lubricated bushings such as bronze.
COM-KU®/M
The SBS COM-KU®/M is a composite sliding Bearing with a specially woven PTFE sliding layer and fibreglass backing. Fibreglass, also spelled fiberglass, is a composite material made from glass fibers combined with a resin or other binding material. The COM-KU®/M is maintenance-free as well, ideal for high loads and possessing superb mechanical properties plus fatigue strength. The COM-KU®/M works best for rotating, oscillating and reciprocating movements under slow speeds.
Discover more SBS options here: https://sbs-bearings.com/
Spherical Plain Bearings, Radial Spherical Plain Bearings & Rod Ends
A spherical plain bearing allows for articulated movement between mechanical components. They feature an inner ball fitting into an outer housing or ring to create an articulated joint. Spherical plain bearings play an important role by providing a flexible pivoting interface, accommodating misalignment and absorbing vibrations. These bearings are ideal for applications requiring articulation and movement under load, from automotive suspensions to industrial machinery. Through managing vibrations and compensating for misalignment, spherical plain bearings improve equipment performance and enhance the service life of your components!
Spherical plain bearings also can come as axial bearings, working with specific axial misalignments.
Axial spherical plain bearings are a type of spherical plain bearings with upper and a lower concave/ convex fitting surface in-between them. They are the preferred pick where axial forces, with a tendency of misalignment, must be countered. In short, these bearings are optimal for heavy, alternating and/or constant axial loads.
Rod ends are load-bearing connectors linking control rods, steering components and suspension parts. They feature a spherical bearing within an eye-shaped head, providing accurate pivot points to accommodate misalignments in industrial applications.
LUB-MET®
A specialty here at SBS is our spherical plain bearings made from LUB-MET® and stainless steel. The SBS – Singa Bearings Solutions LUB-MET® is a solid bronze plain bearing with solid lubricant inserts. It is suitable for high operational demands (as well as impact load) and has long-life capabilities! These are also maintenance-free, corrosion-free and are available in all sizes.
The LUB-MET® and COM-KU®/D are both befitting solutions for corrosive environments.
GE Bearings for Mining
SBS also offer mining bearings meeting OEM quality standards. We perform extensive lab testing and material research, constantly meeting our goal of consistent improvement. Featured in the image above is SBS’s GE259-9014082-s bearing (equivalent to 561-50-82310, 561-50-82311) and GE259-5011080-s bearing (equivalent to 07137-05008), both compatible for the HD785 Dump Truck*
*All manufacturers’ names, numbers, symbols and descriptions are for reference purposes only. SBS – Singa Bearings Solutions®️ does not infer that any part listed is part of the OEM.
Our work with mines and their contractors push us to achieve higher efficiency and extend product lifetimes.
Our work alongside mines and their contractors continually drives us to push the boundaries of performance, enhancing operational efficiency while extending the lifespan of every solution we deliver. By understanding the demanding conditions of mining environments, we ensure long-lasting reliability where it matters most.
Flanged Bearings
Flanged bearings are a variation of plain bearings that include an integrated flange to support axial loads and improve positioning. They provide axial location and act as a thrust surface. These types of bearings are widely used in industrial settings where load capacity and ease of installation are important!
Deciding whether or not flanged bearings are suitable is dependent on your application’s specific requirements.
Plain Bearings and Being Cost Effective
Plain bearings are a cost effective solution due to their simple design, reduced need for additional lubrication and extensive material selection.
Here at SBS, we focus on delivering cost effective plain bearing solutions with long service lives. Our solutions are engineered to maintain high performance, fast delivery, and long operating life while meeting the needs of demanding applications.
Choosing the Right Bearings
Selecting the right plain bearing is critical for any mechanical system and/or industrial application. The correct choice ensures optimal performance, low wear, longevity, and safety while the wrong one can lead to premature wear and failure. By considering factors such as load, speed, alignment, temperature, and environmental conditions, engineers can select plain bearings that deliver reliable, long-lasting performance across a wide range of applications.
SBS – Singa Bearings Solutions®️
Looking for extremely long life plain bearings satisfying specific loads, anti-friction (or low friction) requirements and/or high speeds? When conventional plain bearings don’t cut it and normal operating conditions seem far, SBS offers carefully considered custom products and services for unique, tailored options.
SBS’s product groups cater to three different movements. Plain bearings and flanged bearings are suited for radial, oscillating and rotational movements while spherical plain bearings fix rotational movement with misalignments. Wear plates are for linear motion.
With over 50 years of technical expertise, SBS delivers reliable, optimised solutions for even the most demanding environments.
Contact Us Today
Contact us via email at info@sbs-bearings.com.sg or call +65-6316 3850 today!
