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Overview of SKF bearing housings

Assortment

The comprehensive assortment of SKF bearing housings is provided in the following tables:
  • Split plummer (pillow) block housings (table 1)
  • Non-split housings (table 2)
  • Application-specific housings (table 3)
SKF can also supply custom housings for specific applications and requirements. For additional information, contact the SKF application engineering service.
Split plummer (pillow) block housings

The main benefit of split plummer (pillow) block housings (fig. 1) is that they can accommodate preassembled shafts. Also, these housings simplify bearing inspections and maintenance because the shaft does not need to be disassembled.

The assortment of split plummer block housings is provided in table 1. Application-specific housings are provided in table 3.

fig. 1
Non-split plummer (pillow) block housings

Non-split plummer (pillow) block housings (fig. 2) are preferred when there are heavy loads acting in directions other than toward the support surface. They are also used when the housing has to be mounted from the end of the shaft.

The assortment of non-split plummer block housings is provided in table 2. Application-specific housings are provided in table 3.

fig. 2
Flanged housings
Flanged housings (fig. 3) provide a solution for applications that do not have a frame parallel to the shaft. The assortment of flanged housings is provided in table 2.
fig. 3
Take-up housings
Take-up housings (fig. 4) are typically used to maintain the tension in conveyor belt applications and are mounted onto a guide frame. The assortment of take-up housings is provided in table 2.
fig. 4
Two-bearing housings

Two-bearing housings (fig. 5) have intrinsically aligned bearing seats. As a result, they can accommodate rigid bearings, such as deep groove ball bearings, angular contact ball bearings and cylindrical roller bearings. Two-bearing housings are typically used in applications with an overhanging load.

The assortment of two-bearing housings is provided in table 2.

fig. 5
Application-specific housings
Application-specific housings have features that enable them to be used under special operating conditions. The assortment of application-specific housings is provided in table 3.

Housing materials

SKF housings are typically made of either grey cast iron or spheroidal graphite cast iron. For information about the material options available for a particular housing type, refer to the relevant product section or the following tables:
  • Split plummer (pillow) block housings (table 1)
  • Non-split housings (table 2)
  • Application-specific housings (table 3)
Grey cast iron
Grey cast iron is the standard material for most SKF housings and is sufficient for the majority of applications. It is characterized by high strength, good damping capability and good thermal conductivity.
Spheroidal graphite cast iron
Spheroidal graphite cast iron contains graphite nodules, making it ductile. It therefore provides a higher degree of strength and toughness than grey cast iron. On average, housings made of spheroidal graphite cast iron can withstand 1,8 times heavier loads compared to housings made of grey cast iron.
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