Top 12 Sleeve Bearings

Sleeve bearings, also known as bushings or plain bearings, are widely used by several industries and are an essential component of heavy-duty machines. Sleeve bearings are typically cylindrically shaped and have no moving parts, enabling movement between two ends. Sleeve bearings are highly versatile as they can operate under dry, greased, and lubricated conditions and are suitable for all kinds of movements, be it rotating, sliding, or linear. They also have a high load capacity and can function under various temperatures.

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Sleeve Bearings Buying Guide

Besides handling a heavy load, a sleeve bearing has other benefits, including low friction, low maintenance, easy installation, shock-resistance, noise & vibration dampening. Plain bearings are commonly used in machines like printers, fitness equipment, and agricultural machinery. However, even sleeve/plain bearings have variations, but cylindrical-shaped ones are the most common and easy to use. But before buying sleeve bearings, it is better to keep a few properties in check for optimal usage.

Ensuring High-Quality Performance

When it comes to any machine part, the best way to determine its performance is by checking the material being used. For sleeve bearings, the material options are limited as they are mainly constructed with steel and bronze. A buyer can either go with carbon steel, which is highly durable, or bronze, which is also high in strength and lasts longer. But if you are choosing a steel base, a bronze sintering can make a huge difference. In combination with steel, bronze sintering offers excellent temperature resistance, which is essential for heavy machinery.

Choose the Correct Size

All machines and equipment are of different sizes, and even though all sleeve bearings' primary function is the same, they do not have a standard size. Since bearings support the shaft and assist movement, the sleeve bearing's size must be in line with the shaft. All sleeve bearings do not use the same measuring scale, but sleeve bearings are mainly measured in inches or millimeters. However, to select the right size, you need to take measurements in terms of length, width, and the inner diameter as it is the central part used to hold the bearing in place.

Other Factors You Should Keep in Mind

All bearings often require lubrication for smooth functioning, but there are specific sleeve bearings that do not require external lubrication as they are self-lubricating. But if you are buying one that needs oiling, the sleeve bearing should have a wide body for easy application. Sleeve bearings should have good frictional properties and resistance to overtime wear. Some are even maintenance-free, which is an essential factor to consider. You can also check the weight of the sleeve bearing, depending on the machine type and purpose.