Pillow Block Ball Bearing Units
Pillow blocks can refer to a variety of bearing styles such as single row ball bearings, double row ball bearings, spherical roller bearings, taper roller bearings, etc. A unit is typically a reference for a 1-piece housing as opposed to a split housing. For simplicity, this article will focus on single row ball bearing units.
A basic pillow block bearing unit is typically an insert bearing which is based on a sealed deep groove ball bearing and a one piece housing.” Joshua Goldman, Applications Engineer for SKF USA says.
Pillow block bearing units are designed for quick, easy and safe mounting. They are sealed and pre-greased at the factory making them ready-to-use. Multiple sealing solutions and greases (including food grade greases) are available for specific application requirements. Some variants may be virtually maintenance-free depending on the application operating conditions. Because of the sphered outer ring interface, they can accommodate moderate initial misalignment, but normally do not permit axial displacement. These units offer a simple, cost-effective solution that can provide a number of benefits.
![1.125 Inch | 28.575 Millimeter x 1.5 Inch | 38.1 Millimeter x 1.75 Inch | 44.45 Millimeter Sealmaster MP-18 Pillow Block Ball Bearing Units](https://m.lqxgb.com/uploaded_images/d62092-1-125-inch-28-575-millimeter-x-1-5-inch-38-1-millimeter-x-1-75-inch-44-45-millimeter-sealmaster-mp-18-pillow-block-ball-bearing-units.jpg)
![1.188 Inch | 30.175 Millimeter x 1.688 Inch | 42.87 Millimeter x 1.875 Inch | 47.63 Millimeter Sealmaster MP-19TC Pillow Block Ball Bearing Units](https://m.lqxgb.com/uploaded_images/d62098-1-188-inch-30-175-millimeter-x-1-688-inch-42-87-millimeter-x-1-875-inch-47-63-millimeter-sealmaster-mp-19tc-pillow-block-ball-bearing-units.jpg)
![2.4375 in x 7-1/8 to 8-7/8 in x 3-1/8 in Sealmaster EMP 39 TC Pillow Block Ball Bearing Units](https://m.lqxgb.com/uploaded_images/d62091-2-4375-in-x-7-1-x2f-8-to-8-7-x2f-8-in-x-3-1-x2f-8-in-sealmaster-emp-39-tc-pillow-block-ball-bearing-units.jpg)
![2.559 Inch | 65 Millimeter x 2.75 Inch | 69.85 Millimeter x 3 Inch | 76.2 Millimeter Sealmaster MP-313 Pillow Block Ball Bearing Units](https://m.lqxgb.com/uploaded_images/d62089-2-559-inch-65-millimeter-x-2-75-inch-69-85-millimeter-x-3-inch-76-2-millimeter-sealmaster-mp-313-pillow-block-ball-bearing-units.jpg)
![1.188 Inch | 30.175 Millimeter x 1.5 Inch | 38.1 Millimeter x 2 Inch | 50.8 Millimeter Sealmaster SP-19T Pillow Block Ball Bearing Units](https://m.lqxgb.com/uploaded_images/d62096-1-188-inch-30-175-millimeter-x-1-5-inch-38-1-millimeter-x-2-inch-50-8-millimeter-sealmaster-sp-19t-pillow-block-ball-bearing-units.jpg)