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This part has been superseded.
There may be limited quantities still available for purchase. Contact us for availability. Please contact your local service center for alternative options.
USRB Series Pillow Block

USRB5000-303

SUPERSEDED TO LB_PB22451H, MTRL - 100991386
Item #101014959
  • Spherical Roller Bearing Type
  • Pillow Block
  • 3 3/16 in Shaft Diameter
  • 3 3/4 in Center Line To Base Dimension
  • 9 1/4 in Minimum Bolt Hole Spacing Range
USRB Series Pillow Block
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    Shipment Options
  • Spherical Roller Bearing Type
  • Pillow Block
  • 3 3/16 in Shaft Diameter
  • 3 3/4 in Center Line To Base Dimension
  • 9 1/4 in Minimum Bolt Hole Spacing Range

features

  • Wide race and rollers and steel cage for high dynamic load ratings
  • Race-mounted felt seal with flinger and misalignment sealing
  • Single-collar interlock with 120° spacing setscrew lock, diamond faceted setscrews
  • Powder coat epoxy 2-bolt cast iron housing
Bolt Hole Spacing Range [Max] 10 3/4 in
Bore Shape Straight
Radial Dynamic Load Capacity 72640 lb
Angle of Misalignment ±2°
Locking Type Collar Mount
Brand. Sealmaster
End Cap No
Inch/Metric Inch
Inner Race Length 4.063 in
Outer Ring Land Profile Standard
Retainer Type Metal
Base to Center Height 3.75 in
Locking Device Collar Mount
Bolt Holes 2
Internal Clearance Standard
Length Through Bore 4.25 in
Bore Size 3.188 in
Duty Series Standard
Pillow Block Type 2-Bolt
Series USRB Series
Bearing Type Spherical Roller
Insert Material 52100 Bearing Steel, Black Oxided
Speed [Max] 2500 rpm
Housing Height 7 1/2 in
Housing Material Cast Iron
Housing Construction One Piece
Bolt Center-to-Center Length 10 in
Bolt Center [Min] 9.25 in
Base Length 13 in
Bolt Hole Spacing Range [Min] 9 1/4 in
Base Height 2 1/4 in
Operating Temperature [Max] 220 °F
Replaceable Insert No
Base Width 3.188 in
Handle / Housing Material Cast Iron
Misalignment Type Dynamic
Retainer Material Steel
Relubricatable Yes
Foot Height 2.25 in
Collar O.D. 5.297 in
Overall Height 7.5 in
Expansion No
Housing Color Gray
Lubrication Lithium Complex NLGI 2 Grease
Seal Flinger Yes
Bearing Insert Coating Black Oxide
Bolt Size 0.875 in
Roller Type Spherical Roller
Seal Type Felt Labyrinth
Temperature Range [Max] 250 °F
Bearing Design Non-Expansion
Overall Width 4.06 in
Shaft Dia. 3.1875 in
Center Line to Base Dimension [Min] 3 3/4 in
Overall Length 13 in
Bolt Center [Max] 10.75 in
Weight 37.09 LB
EAN or UPC 662461357576
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