Bearing housings are essential components in many mechanical systems. Choosing the right one can significantly impact performance, durability, and maintenance requirements. There are several types available, each designed for specific applications. Here’s a closer look at five common options.

• Pillow Block: Pillow blocks, also known as pedestal housings, are among the most widely used types. They are ideal for supporting shafts where the mounting is parallel to the shaft axis. These housings come in various configurations with bolt holes that allow for easy adjustment during installation. A variation called pressed steel pillow block bearings is suitable for lighter-duty applications.
• Flange: Flange housings are another common type, often used in conveyor belts or elevator systems. They are typically round or square and fastened with two, three, or four bolts. Some designs include take-up units for tensioning pulleys. Rod-end units feature an eye-shaped head and a shank that holds a spherical plain bearing. These are available in shoe or "T" styles and are usually made from grey iron, though graphite iron or steel options are also available.
• Special Housings: For unique or industry-specific needs, manufacturers can create custom housing solutions. For example, water-cooled housings are specifically designed for use in steel mills with continuous casters. If your project has unusual requirements, it's worth discussing custom options with your supplier.
• Housings for Tapered Roller Bearings: These are commonly used in heavy-duty equipment like material handlers, air-handling systems, shredders, and ovens. Selecting the correct housing depends on the load and mounting conditions. For instance, if the load is angled into the split of a two-piece housing, the mounting bolts must be strong enough to prevent slippage.
• Housings for Cylindrical Roller Bearings: These bearings are typically designed with a single row and cage, but they come in a wide range of sizes and shapes. They are ideal for high-speed or high-load applications such as cranes, conveyors, and electric motors. One-piece housings are recommended for support wheels and motor mounts, while split housings are better suited for heavy rail vehicles and transmission drives.
• Split Plummer Block Housing: This type is often used for self-aligning ball bearings, spherical roller bearings, and CARB toroidal roller bearings. It offers flexibility without requiring custom orders. Most are made from grey cast iron, but spheroidal graphite cast iron versions are available for higher strength applications. Common uses include mining, metallurgy, and paper processing industries.

Bearing housings can be manufactured from materials like ductile iron, cast iron, pressed steel, or aluminum. Aluminum is often used for lighter applications, but it requires a tighter fit due to its tendency to expand when heated. Understanding the right material and design for your system is crucial for long-term performance.

If you want to learn more about proper lubrication techniques for roller bearings, check out Noria Corporation’s article titled "How to Determine the Correct Oil Application Method".

Whether you're looking for standard or custom bearing housing solutions, our team is here to help. Contact us today to discuss your needs and find the best option for your application.