What type of bearing is a pillow block?
A pillow block usually refers to a housing with an included anti-friction bearing, wherein the mounted shaft is in a parallel plane to the mounting surface, and perpendicular to the center line of the mounting holes, as contrasted with various types of flange blocks or flange units.
Where are pillow block bearings used?
Pillow block bearing units are usually a housed bearing with a machined mounting surface and used in mechanical power transmission systems to support shafts and couplings. The shaft is parallel to the mounting surface and generally perpendicular to the mounting screws. They are a type of housed bearing units.
How do pillow block bearings work?
Pillow block bearings are installed on a surface by driving a fastener through these small holes. Pillow blocks work in the same way as most other bearings. The shaft of a machine or object can be inserted into a pillow block bearing to improve rotational movement.
What are pillow block bearings made of?
Pillow Block Bearings is usually made of aluminum that offers high loading carrying capacity and heat conductivity. On the other hand, pressed steel is used in low load carrying applications yet it offers high performance with precision. Stainless steel is used because of its ability of corrosion resistance.
How do I choose a pillow block bearing?
With pillow block bearings, product selection is based on:
- Shaft diameter- the diameter must be matched with the appropriate bore dimensions of the bearing unit.
- Shaft height- the shaft height or backing height is determined by measuring the distance from the base of a pillow block bearing to the center of the shaft.
How long do pillow block bearings last?
Assuming you specified Greenheck’s standard bearing life of L10 80,000 hours and your fans run an average of 8 hours per day, you can expect 27.5 years of life on 90 percent of the bearings.
Are pillow block bearings ball bearings?
Like ball bearings, they provide smooth, low friction movement in rotary applications. They are generally constructed of a housing, inner and outer rings, rollers, and a cage or roller separator. There are three main types of roller bearings used for pillow blocks.
How do you choose a shaft bearing?
Selection of bearing type
- Installation space. Bearing can be installed in target equipment.
- Load. Load magnitude, type and direction which applied.
- Rotational speed. Response to rotational speed of equipment in which bearings will be installed.
- Running accuracy.
- Rigidity.
- Misalignment.
- Mounting and dismounting.
Do you grease pillow block bearings?
Bearings should be greased as often as necessary (daily if required) to maintain a slight leakage of the seals. Normal Operation—This bearing has been greased at the factory and is ready to run.
What would I use a pillow block bearing for?
Here are examples of applications in which pillow block ball bearing units might be used:​ Agricultural Food and beverage processing and packaging Air handling
Are there rigid pillow block bearings?
Pillow blocks with bearings mounted in rigid housings of simple construction are the most common bearing units . They are extensively used for various kinds of transmission equipment and machinery.
What are the advantages of split pillow block bearings?
Benefits of a split pillow block bearing include saving alignment, saving time disassembling the shaft and reducing down time . Wood bearings can be found in agricultural process and handling machinery. The dust and dirt in these environments make the wood a shaft-friendly material.
What is the difference between plummer block to pillow block?
A These Bearings are also known as Plummer Blocks yet there is a slight difference between these two. These Pillow Block Bearings are mostly used in less industrialized environments while Plummer Blocks are used where high performance and high load capacity is required.