Pillow Block Roller Bearing Units

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The convenient split-housing design simplifies assembly and service.  Each pillow block contains an advanced-design spherical roller bearing with improved geometry and raceway finish for maximum load capacity and service life.  Timken manufactures pillow blocks in two main styles:  SAF and SDAF. The larger SDAF block is suggested for extreme heavy duty applications.

Pillow block bearings, flange bearing units, bearing blocks, and take-up bearings units all consist of a housing with a bearing mounted in it. They are available in a variety of materials, mounting configurations and various bearing features. Each mounted unit, including a mounted bearing, acts as a system to position the bearing securely for reliable operation. Read more about each type of pillow block bearing using the links below. pillow blocks combine rugged cast-iron or cast-steel housings with high capacity spherical roller bearings to meet the toughest demands of heavy industry. 

4 Inch | 101.6 Millimeter x 5.25 Inch | 133.35 Millimeter x 4.25 Inch | 107.95 Millimeter Sealmaster RPBA 400-C4 Pillow Block Roller Bearing Units

23.00 mm 5300 rpm
40500 N Seal & Snap-Ring

1.25 Inch | 31.75 Millimeter x 2.375 Inch | 60.325 Millimeter x 1.5 Inch | 38.1 Millimeter Sealmaster RPBA 104-C2 Pillow Block Roller Bearing Units

45 mm 0.25 m/s
10 N/mm² 20 N/mm²

3.438 Inch | 87.325 Millimeter x 4.19 Inch | 106.426 Millimeter x 3.75 Inch | 95.25 Millimeter Sealmaster RPBA 307-2 Pillow Block Roller Bearing Units

5.00 mm 930 N
1820 N 20000 rpm

2.438 Inch | 61.925 Millimeter x 3.31 Inch | 84.074 Millimeter x 2.75 Inch | 69.85 Millimeter Sealmaster RPBA 207-4 Pillow Block Roller Bearing Units

405000 N 1400 rpm
302000 N 1700 rpm
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