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If someone coined the phrase "simple yet effective" for a specific component, they would choose the sleeve bearing. Why? Because sleeve bearings facilitate linear or rotational movement between two parts.
A sleeve bearing (also known as a bushing bearing or plain bearing) is a straightforward and fundamental type of bearing. It primarily consists of an inner metal sleeve (known as the bushing) and an outer metal sleeve. Between these two sleeves is a layer of special lubricating material. This is usually a sliding surface covered in grease or oil.
A plain bearing works by reducing friction between metal parts. It does this using a lubricating material on the sliding surface.
Plain bearings have self-lubricating features. This lets them work without maintenance for a long time. Because of this, they are good for many industrial uses.
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Essentially, there's no difference. Both a bushing and a plain bearing serve the same purpose - they are tubes or sleeves that allow for linear or rotational movement. You can use these terms interchangeably.
Sleeve bearing, plain bearing, journal bearing, and sliding bearing all fall under the category of bushings. These terms simply describe different styles of bushings. While every bushing qualifies as a type of bearing, not all bearings qualify as bushings.
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Plain bearings, serve a crucial role in various mechanical applications. Their primary function is to facilitate smooth motion between two components, while simultaneously minimizing friction and dampening vibrations. These bearings possess a commendable load-bearing capacity, making them particularly well-suited for heavy-duty tasks.
Durable plain bearings excel in handling substantial loads and elevated temperatures while exhibiting minimal wear. Their contact surface possesses impressive shock load resilience and they can adapt to misalignment in other components.
They offer many benefits. These include low friction and a compact design that saves space. They are lightweight and easy to install. They also help reduce vibration, which lowers noise.
Plain bearings are highly versatile and find application in various movements:
They are prevalent in pivot points, widely utilized in automotive, manufacturing machinery, and appliances. In automotive, they enable rotational and linear movement in hinges, seat adjustments, and steering yokes. Belt tensioners utilize them for high-frequency oscillation.
Exploring the Benefits of Bushing Bearings 
Plain bearings come in various types and material options. The common flanged type handles axial and radial loads.
Cylindrical and thrust washer designs are also available. For higher side loads, using a thrust washer with a cylindrical bearing is effective. For only radial loads, a simple cylindrical bearing is best.
Material choice significantly influences plain bearing performance, affecting factors like strength, elasticity, and friction coefficient. Metal, ceramic, composites, and plastic are common options. Cast or sintered metal bushings work well with hard steel shafts in hydrodynamic conditions. However, they may be too noisy for some uses.
Cylindrical Sleeve Bearing
Flanged Sleeve Bearing
Thrust Washer
To make sleeve bearings self-lubricating, a compound layer is applied. This guarantees smooth operation and prolongs the bushing's lifespan. External lubrication can further enhance wear resistance and reduce friction. Additional grooves inside the surface can serve as lubricant reservoirs.
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Bearing Bushing Basics: Your Entry Point to Engineering Excellence 
ISK Sleeve Bearings offer a range of advantages. Their unique material composition enables engineers to choose the best fit for specific applications.
You can adjust extra features. For example, a thick PTFE layer can help with misalignment. It also provides a steady friction coefficient. This layer reduces noise and vibration.
The choice of metal backing provides high load capacity. This flexibility allows ISK Bearings to meet precise requirements for each application.
If you are not sure which bushing bearing to pick, we suggest talking to professional engineers or ISK BEARINGS. This will help your equipment perform better and last longer.
|
Bearing No. |
d(mm) |
D(mm) |
L(mm) |
|---|---|---|---|
| DU 0606 | 6 | 8 | 6 |
| DU 0608 | 6 | 8 | 8 |
| DU 0610 | 6 | 8 | 10 |
| DU 0806 | 8 | 10 | 6 |
| DU 0808 | 8 | 10 | 8 |
| DU 0810 | 8 | 10 | 10 |
| DU 0812 | 8 | 10 | 12 |
| DU 0815 | 8 | 10 | 15 |
| DU 1006 | 10 | 12 | 6 |
| DU 1008 | 10 | 12 | 8 |
| DU 1010 | 10 | 12 | 10 |
| DU 1012 | 10 | 12 | 12 |
| DU 1015 | 10 | 12 | 15 |
| DU 1020 | 10 | 12 | 20 |
| DU 1206 | 12 | 14 | 6 |
Further reading:
Sleeve Bearing vs Bushing: What Difference Between Them
This is just the tip of the iceberg!
Discover more about the features and applications of various bearings.
Click here to explore more articles and find the perfect bearing for your project.
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