Block pillow bearings are a type of bearing used to support rotating shafts. They are made of two or more bearing blocks that are bolted together, and they are typically mounted on a flat surface.
Block pillow bearings are available in a variety of sizes and configurations to accommodate different shaft diameters and loads. They are also available with different types of seals to protect the bearings from contamination. In fact, they account for approximately 80% of all bearing applications.
Block pillow bearings are an essential component of many industrial and commercial applications. They are used in a wide range of equipment, including:
Block pillow bearings are important because they:
Block pillow bearings offer a number of benefits over other types of bearings, including:
To ensure the long life and reliable performance of block pillow bearings, it is important to implement effective maintenance strategies. These strategies include:
Bore Diameter (mm) | Outer Diameter (mm) | Width (mm) |
---|---|---|
20 | 52 | 22 |
25 | 62 | 28 |
30 | 72 | 32 |
35 | 85 | 38 |
40 | 95 | 42 |
Bearing Size (mm) | Dynamic Load Rating (kN) | Static Load Rating (kN) |
---|---|---|
20 | 9.6 | 6.5 |
25 | 14.4 | 9.6 |
30 | 19.2 | 12.8 |
35 | 24 | 16 |
40 | 28.8 | 19.2 |
Seal Type | Description | Benefits |
---|---|---|
Contact | Seals the bearing against the shaft | Effective in low-speed applications |
Non-contact | Seals the bearing against the housing | Effective in high-speed applications |
Labyrinth | Seals the bearing with a series of baffles | Effective in applications with high levels of contamination |
1. What is the difference between a block pillow bearing and a ball bearing?
Block pillow bearings are a type of rolling-element bearing that uses a series of rollers to support a rotating shaft. Ball bearings, on the other hand, use a series of balls to support a rotating shaft. Block pillow bearings are typically more rugged and durable than ball bearings, but they are also less precise.
2. How do I choose the right block pillow bearing for my application?
The first step in choosing the right block pillow bearing for your application is to determine the size of the shaft that you need to support. You will also need to consider the load that the bearing will be subjected to, the speed of the shaft, and the operating environment.
3. How do I install a block pillow bearing?
Block pillow bearings are typically installed by bolting them to a flat surface. It is important to make sure that the bearing is properly aligned before tightening the bolts.
4. How do I lubricate a block pillow bearing?
Block pillow bearings should be lubricated regularly according to the manufacturer's specifications. The type of lubricant that you use will depend on the operating conditions.
5. How do I inspect a block pillow bearing?
Block pillow bearings should be inspected regularly for signs of wear, damage, or contamination. If you notice any signs of wear or damage, you should replace the bearing immediately.
6. How do I replace a block pillow bearing?
To replace a block pillow bearing, you will first need to remove the old bearing. This can be done by unbolting the bearing from the flat surface. Once the old bearing has been removed, you can install the new bearing by bolting it to the flat surface.
Conclusion
Block pillow bearings are an essential component of many industrial and commercial applications. They are durable, reliable, versatile, and cost-effective. By following the tips in this article, you can ensure the long life and reliable performance of your block pillow bearings.
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