Sealmaster Housings: Maximum Protection and Performance in Demanding Industrial Environments

Sealmaster housings are mounted bearing units that combine a robust housing and an insert bearing with a shaft locking system. They are designed for applications where reliability and protection against contaminants are critical, such as in the food, agricultural, mining, and material handling industries.

The Sealmaster brand is recognized for its superior sealing and robust construction, which extends bearing life even under adverse conditions. At MR Accesorios Industriales, we distribute a wide variety of Sealmaster housings, including the PN Gold, USRB, and Material Handling series, to meet the requirements of each plant.

Working with Sealmaster housings means reducing unplanned downtime and maintenance costs, thanks to their ability to operate in environments with dust, moisture, frequent washdowns, and high loads. If you are looking for a reliable housing, this brand is an option to seriously consider.

The PN Gold series features a high-strength cast iron housing and a bearing with corrosion protection, ideal for applications exposed to moisture or mild chemicals. Models PN-22T, PN-32T, and PN-39T are examples of this line, available in different shaft sizes.

The USRB series is aimed at heavy-duty applications, with reinforced housings and higher load capacity bearings. They are ideal for conveyors, elevators, and equipment that withstand constant impacts and vibrations.

The Material Handling line is specifically designed for material handling systems, such as conveyor belts and rollers. It includes Y-housings with insert bearings, such as models STMH-35, TBMH-27, and SFMH-24, which offer easy mounting and alignment.

Sealmaster Y-housings with insert bearing, also known as pillow blocks or flange units, are a practical solution for shafts requiring support and alignment. The insert bearing is locked to the shaft using set screws, eccentric locking collar, or adapter, simplifying installation and replacement.

In this category, we find codes such as STMH-35, TBMH-27, and SFMH-24, which correspond to different shaft sizes and housing configurations. These housings are used in fans, pumps, conveyors, and agricultural machinery, among others.

The advantage of Y-housings is that they allow for small misalignments and thermal expansions, reducing stress on the bearing and extending its service life. Additionally, their compact design facilitates mounting in tight spaces.

The Y insert bearing is the rolling component housed in the housing. Sealmaster offers inserts with different locking and sealing types, such as models MH-31, MH-19, and MH-23. These bearings typically have a spherical outer ring that allows self-alignment within the housing.

Sealmaster inserts are manufactured from high-quality steel and heat-treated to withstand moderate radial and axial loads. Sealing can be contact or labyrinth, depending on the application, and some models include additional protection against washdowns.

When choosing an insert bearing, it is important to consider shaft diameter, rotation speed, load, and environmental conditions. At MR, we help you select the correct insert for your Sealmaster housing, ensuring compatibility and performance.

Sealmaster spherical roller bearings, such as models PN-206, PN-207, and PN-204, are designed to withstand very high radial loads and axial loads in both directions, as well as compensate for significant shaft misalignments. They are ideal for applications in mining, cement, and large equipment.

These bearings have two rows of symmetrical rollers and an outer ring with a spherical raceway, allowing self-alignment. The corresponding housing is usually split or pillow block type, and the assembly offers a robust solution for severe conditions.

At MR, we distribute Sealmaster spherical roller bearings for different shaft diameters. If your application demands maximum reliability and durability, this line is an excellent choice. Contact us for the specific model you need.

To select the correct Sealmaster housing, first define the shaft diameter and the load (radial and axial) it must support. Then consider the environmental conditions: presence of dust, moisture, temperature, chemical washdowns, etc. This will determine the sealing type and housing material.

The shaft locking method is also key: set screw, eccentric, or adapter. Each has advantages depending on speed and vibration. Y-housings with inserts are the most common, but for very heavy loads or misalignments, spherical roller bearings may be necessary.

At MR Accesorios Industriales, from Buenos Aires, Argentina, we advise you on choosing the ideal Sealmaster housing for your equipment. Send us the code, size, or a photo of the part, and we will quote the best alternative.

Proper maintenance of Sealmaster housings begins with correct installation: verify alignment, locking screw tightness, and initial lubrication. Sealmaster recommends using high-quality greases and respecting re-lubrication intervals according to the application.

During operation, it is important to monitor the temperature and vibration of the housing, as sudden changes may indicate lubrication or wear issues. The condition of the sealing should also be inspected periodically to prevent contaminant ingress.

If the bearing shows signs of fatigue or the housing has cracks, it is time to replace the assembly. At MR, we quote the exact Sealmaster replacement for your equipment, avoiding adaptations that compromise performance.