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