Pillow Block Bearings
Pillow block bearings, sometimes referred to as plummer block bearings, are mounted bearings that are used to provide load support for a rotating shaft. Their mounting surface is on a plane parallel and offset to the axis of the shaft. Mounting holes or slots in the base or feet of pillow block bearings permit adjustment and easy mounting.
Pillow Block Bearings Pillow blocks, the most commonly used type of mounted units, are designed to provide shaft support where the mounting surface is parallel to the shaft axis. The bolt holes are usually slotted for adjustment during mounting. Pillow blocks are supplied in a variety of configurations.Pillow block bearings are a typical style of bearing. These bearings are composed of a self-aligning ball bearing (the commonly used type) and plummer block. They can be attached to a shaft by fastening a ball retaining screw.
![4.331 Inch | 110 Millimeter x 5.53 Inch | 140.462 Millimeter x 4.75 Inch | 120.65 Millimeter QM INDUSTRIES QMPF22J110SC Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61590-4-331-inch-110-millimeter-x-5-53-inch-140-462-millimeter-x-4-75-inch-120-65-millimeter-qm-industries-qmpf22j110sc-pillow-block-bearings.jpg)
![2.756 Inch | 70 Millimeter x 3.62 Inch | 91.948 Millimeter x 3.126 Inch | 79.4 Millimeter QM INDUSTRIES QAP15A070SEC Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61591-2-756-inch-70-millimeter-x-3-62-inch-91-948-millimeter-x-3-126-inch-79-4-millimeter-qm-industries-qap15a070sec-pillow-block-bearings.jpg)
![5.512 Inch | 140 Millimeter x 7.56 Inch | 192.024 Millimeter x 6.688 Inch | 169.875 Millimeter QM INDUSTRIES QMPF30J140SN Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61588-5-512-inch-140-millimeter-x-7-56-inch-192-024-millimeter-x-6-688-inch-169-875-millimeter-qm-industries-qmpf30j140sn-pillow-block-bearings.jpg)
![4.528 Inch | 115 Millimeter x 5.53 Inch | 140.462 Millimeter x 4.75 Inch | 120.65 Millimeter QM INDUSTRIES QMPF22J115SM Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61586-4-528-inch-115-millimeter-x-5-53-inch-140-462-millimeter-x-4-75-inch-120-65-millimeter-qm-industries-qmpf22j115sm-pillow-block-bearings.jpg)
![3.346 Inch | 85 Millimeter x 5.197 Inch | 132 Millimeter x 4.409 Inch | 112 Millimeter QM INDUSTRIES QAASN18A085SEN Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61588-3-346-inch-85-millimeter-x-5-197-inch-132-millimeter-x-4-409-inch-112-millimeter-qm-industries-qaasn18a085sen-pillow-block-bearings.jpg)
![4.438 Inch | 112.725 Millimeter x 5.53 Inch | 140.462 Millimeter x 4.75 Inch | 120.65 Millimeter QM INDUSTRIES QMPF22J407SM Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61656-4-438-inch-112-725-millimeter-x-5-53-inch-140-462-millimeter-x-4-75-inch-120-65-millimeter-qm-industries-qmpf22j407sm-pillow-block-bearings.jpg)
![1.772 Inch | 45 Millimeter x 2.874 Inch | 73 Millimeter x 2.362 Inch | 60 Millimeter QM INDUSTRIES QASN09A045SEN Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61591-1-772-inch-45-millimeter-x-2-874-inch-73-millimeter-x-2-362-inch-60-millimeter-qm-industries-qasn09a045sen-pillow-block-bearings.jpg)
![3.5 Inch | 88.9 Millimeter x 5.18 Inch | 131.572 Millimeter x 3.75 Inch | 95.25 Millimeter QM INDUSTRIES QAAP18A308SO Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61656-3-5-inch-88-9-millimeter-x-5-18-inch-131-572-millimeter-x-3-75-inch-95-25-millimeter-qm-industries-qaap18a308so-pillow-block-bearings.jpg)
![3.543 Inch | 90 Millimeter x 5.18 Inch | 131.572 Millimeter x 3.74 Inch | 95 Millimeter QM INDUSTRIES QAAP18A090SO Pillow Block Bearings](https://m.textpatternsolutions.com/uploaded_images/d61587-3-543-inch-90-millimeter-x-5-18-inch-131-572-millimeter-x-3-74-inch-95-millimeter-qm-industries-qaap18a090so-pillow-block-bearings.jpg)
- 3.543 Inch | 90 Millimeter x 5.18 Inch | 131.572 Millimeter x 3.74 Inch | 95 Millimeter QM INDUSTRIES QAAP18A090SO Pillow Block Bearings
- 4130 or 4340 Alloy S
- Aluminum Bronze