Pillow block housings typically have two bolt holes for mounting to a support surface with threaded fasteners.

Cast iron is the typical pillow block housing material. They usually have oblong bolt holes for ease of setting. Cast iron pillow block housings provide adequate support for a range of applied loads and enable the bearing units to be relubricated through a grease fitting. This makes them especially suitable for bearing arrangements that operate under any of the following conditions:

• high levels of contamination
• high speeds
• high temperatures
• relatively heavy loads

Cast iron pillow block housing

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