Pillow Block Roller 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.
![3.0000 in x 9.88 to 11-1/2 in x 4-1/2 in Dodge P2BDI300R Pillow Block Roller Bearing Units](https://m.lqxgb.com/uploaded_images/d62102-3-0000-in-x-9-88-to-11-1-x2f-2-in-x-4-1-x2f-2-in-dodge-p2bdi300r-pillow-block-roller-bearing-units.jpg)
![2.938 Inch | 74.625 Millimeter x 3.5 Inch | 88.9 Millimeter x 3.25 Inch | 82.55 Millimeter Dodge P4B-IP-215R Pillow Block Roller Bearing Units](https://m.lqxgb.com/uploaded_images/d62102-2-938-inch-74-625-millimeter-x-3-5-inch-88-9-millimeter-x-3-25-inch-82-55-millimeter-dodge-p4b-ip-215r-pillow-block-roller-bearing-units.jpg)
![4.9375 in x 15-1/2 to 18.06 in x 7-1/4 in Dodge P4BDI415RE Pillow Block Roller Bearing Units](https://m.lqxgb.com/uploaded_images/d62053-4-9375-in-x-15-1-x2f-2-to-18-06-in-x-7-1-x2f-4-in-dodge-p4bdi415re-pillow-block-roller-bearing-units.jpg)