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Pillow blocks, the most commonly used type of mounted units, provide shaft support where the mounting surface is parallel to the shaft axis. The bolt holes are usually slotted for easy adjustment during mounting.

Pillow blocks come in a variety of configurations.

  • Narrow series (V and S) are lightweight, yet structurally designed to support bearing load.
  • Premium width series (R and Y) are three times stronger for rougher environments. They’re available in two styles that fit typical applications.
  • Pressed steel and rubber pillow blocks are available for light-duty applications.
PillowBlock BHU Locking Collar.jpg
BHU Pillow Block RV Series - Line Drawing
Unit of Measure
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Part Number

Shaft Size d

Total Width

Static Load Rating

Dynamic Load Rating

Seal Type

Housing Construction

CAD

RSAO3 3/16 N/A 3.1875 in N/A 111.1 mm4.374 in N/A 86500 N19400 lbf N/A 136300 N30700 lbf N/A Shroud Seal N/A Two-Bolt Pillow Block N/A
RSAO3 7/16 N/A 3 7/16 in N/A 120.6 mm4.748 in N/A 107200 N24100 lbf N/A 158200 N35600 lbf N/A Shroud Seal N/A Two-Bolt Pillow Block N/A
RSAO3 15/16 N/A 3.9375 in N/A 130.2 mm5.126 in N/A 140400 N31600 lbf N/A 191800 N43100 lbf N/A Shroud Seal N/A Two-Bolt Pillow Block N/A
Unit of Measure
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