Pillow block bearings are mounted units that provide low friction support for shafts moving parallel to the mounting surface and passing through the unit’s center. Also called a plumber’s block, these bearings allow the shaft to smoothly glide in and out of the casing with little friction, resistance or heat. They are basically a ball bearing inserted into a mountable enclosure.
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Dynaroll CorporationSylmar, CA 800-235-1235 The team at Dynaroll Corporation has made it a priority to provide their customers with stellar products like their many pillow block bearings, as well as testing, lubricating, assembly and installation services and top notch customer service. For over 20 years they have been partnering with companies in the aerospace, automotive and medical fields, to name just a few. Contact them today!
Pacific International Bearing, Inc.Union City, CA 800-228-8895 Not only does Pacific International Bearing supply their customers with unbelievably well made pillow block bearings and similar models, they also ensure that they receive the best fit for their application. PIB provides services in the selection of products, tolerance testing, lubrication and installation. They also guarantee a plethora of materials to choose from and affordable pricing.
Frantz® ManufacturingSterling, IL 815-625-7063 Domestic manufacturing and testing facilities provide the quality assurance that gives Frantz® Manufacturing Company customers peace of mind regarding the products delivered, like their pillow block bearings. Lean production methods provide time delivery in less than container lot sizes that improve its customer's return on investment and conform to their lean production needs.
Rexnord Industries, LLCMilwaukee, WI 866-739-6673 Because so many companies within so many varied industries depend on material handling equipment, a company like Rexnord Industries, which produces parts like pillow block bearings, couplings and stearns for a variety of equipment, is vital. At Rexnord, you know you will get a plethora of part options, excellent service, affordable prices and the highest quality parts around.
Aircraft Bearing CorpSan Clamente, CA 800-970-2007 Aircraft Bearing manufactures & stocks ball bearings and a variety of related parts, which are manufactured for extreme temperatures and hostile environments. We also offer our customers the option of custom products for when they have extremely detailed needs. Aircraft Bearing is about helping our customers and making sure they receive the highest quality in products.
Kaydon® Corporation, Inc.Muskegon, MI 800-514-3066 A leading designer and manufacturer of custom-engineered, performance-critical products such as pillow block bearings, Kaydon® Corporation Inc. supplies a broad and diverse group of aerospace and defense, medical systems, semiconductor, industrial machinery, heavy equipment, renewable energy, and aftermarket customers. They are proud to be known as the makers of high quality products.
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The casings of pillow block bearings are usually made from cast iron, plastic, stainless steel or pressed steel to ensure the necessary strength and heat conduction properties while the bearing itself is typically constructed of smooth self-lubricating steel. The housing of the bearing is either one or two pieces, called unsplit or split, depending on whether or not the cap and base can be separately detached. Pillow block bearings are available in a variety of sizes, depending on the diameter of the hole, or bore, and they range from a few millimeters to approximately five centimeters in size. Various seals are provided to prevent dust and other contaminants from entering the housing so that it can provide a clean environment for ball bearings to freely rotate, which increases their performance and load capabilities. Pillow block bearings are used extensively in conveyor systems for the automotive and manufacturing industries as well as on automatic or robotic assembly lines, for die cutting tools, molds, punches and more.
Pillow block bearings can be mounted vertically on the wall or horizontally on the ceiling or floor. Some bearings are thicker and wider than others in anticipation of their applications. Though not motorized, pillow block bearings must be able to support heavy load capacities and the size of the bore and the diameter of the shaft should be carefully matched to ensure the smoothest and most secure fit. If the shaft is too wide, the increased surface area contact will cause more friction and the bearing will require heavy lubrication. Should the shaft be much smaller in diameter than the hole in the bearing, it will not slide through evenly and will add tension on the bearing and casing, causing wear and fatigue. Some styles enable both linear and rotary motion. For pillow block bearings that allow a rotating shaft to pass through, the bearing contains spherical rolling elements that rotate and travel in tracks, called races. The races are often oval in shape and the balls are exposed through the surface of the bearing to facilitate free motion of the shaft with low friction. For these bearings, a shaft can move in a straight line while also rotating on its radial axis. Depending on the application, the cylindrical holes in pillow block bearings can be completely closed or partially open to accommodate a shaft with an attached carriage or load.
