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Hub CityPB251X1 1/4

PB251X1 1/4

PB251 Series Cast Iron Pillow Block
Item #101033072
  • PB251 Series Normal-Duty Pillow Block
  • 1 1/4" Shaft
  • 5 3/32" Bolt Centers
  • 1 7/8" Center Line to Base
  • Setscrew Locking Collar
  • Cast Iron
  • Regreasable
  • Contact Seals
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Hub CityPB251X1 1/4
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  • PB251 Series Normal-Duty Pillow Block
  • 1 1/4" Shaft
  • 5 3/32" Bolt Centers
  • 1 7/8" Center Line to Base
  • Setscrew Locking Collar

features

  • Molded glass fiber reinforced polyamide retainer
  • Grade 10 balls
  • Races and balls are 52100 steel, hardened, ground, and honed for quiet operation
  • Slotted bolt holes
  • Rugged cast iron or Hub-Alloy® housing
  • Zone-hardened inner race
  • Prelubricated with high quality lithium grease. 1/4-28 Zerk fitting provided to allow for relube
  • Choice of narrow or wide inner race, setscrew locking or eccentric collar locking, normal-duty, or medium-duty bearings
  • Knurled cup point setscrews at 120° to minimize inner ring distortion
  • Recessed housing base to accommodate uneven mounting surfaces
  • Spherical outer race to allow up to 1.5° misalignment
  • All bearings have single lip Nitrile rubber seals with steel trash guard
  • Steel fingers are standard on wide inner race bearings only
Bearing Design Non-Expansion
Mounted Unit Duty Normal-Duty
Housing Width 1 7/8 in
Overall Width 1 15/16 in
Housing Material Cast Iron
Center of Bearing to Front of Inner Ring 1.004 in
Length Through Bore 1.378 in
Collar O.D. 1.815 in
Bearing Type Ball Bearing
Insert Type Steel Insert
Bearing Insert B250X1 1/4
Misalignment Range ±1 1/2°
Housing Height 3 11/16 in
Bolt Holes 2
Base Height 11/16 in
Temperature Range [Max] 225 °F
Temperature Range [Min] -25 °F
Bolt Hole Spacing 5 3/32 in
Locking Device Setscrew Locking Collar
End Type Open End
Series PB251
Inch/Metric Inch
Housing Construction 1 Piece
Bolt Hole Spacing Range [Max] 5 1/2 in
Base Width 1 7/8 in
Lubrication Relubricatable
Bolt Size 1/2 in
Shaft Dia. 1.25 in
Pillow Block Type Thru-Bolt
Seal Type Contact Seals
Base Length 6 3/4 in
Bolt Hole Spacing Range [Min] 4 11/16 in
Weight 4.0 LB
EAN or UPC 662798248295
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