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Hub CityPB250HWX7/8

PB250HWX7/8

PB250HW Series HUB-ALLOY® Pillow Block
Item #102246030
  • PB250HW Series Normal-Duty Pillow Block
  • 7/8" Shaft
  • 4 1/16" Bolt Centers
  • 1 5/16" Center Line to Base
  • Setscrew Locking Collar
  • Hub-Alloy®
  • Regreasable
  • Contact Seals
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Hub CityPB250HWX7/8
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    Shipment Options
  • PB250HW Series Normal-Duty Pillow Block
  • 7/8" Shaft
  • 4 1/16" Bolt Centers
  • 1 5/16" 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
Center of Bearing to Front of Inner Ring 0.78 in
End Type Open End
Locking Device Setscrew Locking Collar
Bearing Design Non-Expansion
Housing Height 2 5/8 in
Bolt Size 3/8 in
Misalignment Range ±1 1/2°
Pillow Block Type Thru-Bolt
Bolt Holes 2
Bolt Hole Spacing 4 1/16 in
Shaft Dia. 0.875 in
Housing Construction 1 Piece
Housing Material Hub-Alloy®
Base Width 1 1/2 in
Bearing Type Ball Bearing
Temperature Range [Min] -25 °F
Inch/Metric Inch
Base Length 5 3/8 in
Lubrication Relubricatable
Bolt Hole Spacing Range [Min] 3 5/8 in
Insert Type Steel Insert
Series PB250HW
Housing Width 1 1/2 in
Base Height 1/2 in
Bolt Hole Spacing Range [Max] 4 1/2 in
Length Through Bore 1.343 in
Collar O.D. 1.328 in
Seal Type Contact Seals
Bearing Insert YW250X7/8
Mounted Unit Duty Normal-Duty
Overall Width 1 17/32 in
Temperature Range [Max] 225 °F
Weight 1.6 LB
EAN or UPC 662798250281
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