A pillow block bearing is generally designed to support the rotating shaft with the help of bearings that are housed inside the special body. The housing or mounting body is usually made up of Cast Iron.
The pillow block bearing is used in light load applications. The plummer block may consist of spherical roller bearings or self-aligning ball bearings.
Read: Wheel Bearing: Checking it for Noise and Symptoms
Read: Wien's Displacement Law
We can get variation in bore size, bearing or block material and in similar other things.
The pillow block bearing is used in light load applications. The plummer block may consist of spherical roller bearings or self-aligning ball bearings.
Parts of pillow block bearing
A simple pillow block bearing consists of the following parts,Bearing
This is the main body part which performs the basic function of supporting the rotary shaft. It may be a ball or roller type bearing. The bearing material generally used are Steel, stainless steel, sintered metals, graphite metal & Some type of plastic.Read: Wheel Bearing: Checking it for Noise and Symptoms
Plummer block unit
It is made with high strength cast iron or cast steel.Seal
It is present to seal the lubricant. It basically prevents leakage of lubricant outside of the bearing.Oil plugs
To lubricate the bearing this hole is used.Read: Wien's Displacement Law
Mounting Holes
These are usually slotted type holes used to mount the unit. This allows for easy positioning during the installation.Design
The bore diameter is machined with H8 tolerance. When designing shaft one should refer to the manufacturer's catalog, for example, NTN pillow block bearings.We can get variation in bore size, bearing or block material and in similar other things.
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