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Hub CityPB251NX1 7/16

PB251NX1 7/16

PB251N Series Nickel Plated Pillow Block
Item #101033149
  • PB251N Series Normal-Duty Pillow Block
  • 1 7/16" Shaft
  • 5 3/32" Bolt Centers
  • 1 7/8" Center Line to Base
  • Setscrew Locking Collar
  • Cast Iron - Nickel Plated
  • Regreasable
  • Contact Seals
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Hub CityPB251NX1 7/16
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  • PB251N Series Normal-Duty Pillow Block
  • 1 7/16" 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
Temperature Range [Max] 225 °F
Seal Type Contact Seals
Length Through Bore 1.378 in
Lubrication Relubricatable
Bolt Hole Spacing 5 3/32 in
Housing Width 1 7/8 in
Inch/Metric Inch Bore
Bearing Design Non-Expansion
Housing Construction 1 Piece
Collar O.D. 1.815 in
Housing Material Cast Iron - Nickel Plated
Pillow Block Type Thru-Bolt
Bolt Hole Spacing Range [Max] 5 1/2 in
Overall Width 1 15/16 in
Temperature Range [Min] -25 °F
Mounted Unit Duty Normal-Duty
Base Length 6 3/4 in
Bearing Type Ball Bearing
Insert Type Steel Insert
Shaft Dia. 1.4375 in
Bolt Hole Spacing Range [Min] 4 11/16 in
Misalignment Range ±1 1/2°
Series PB251N
Base Height 11/16 in
Bolt Size 1/2 in
Housing Height 3 11/16 in
Base Width 1 7/8 in
Bearing Insert B250X1 7/16
End Type Open End
Bolt Holes 2
Center of Bearing to Front of Inner Ring 1.004 in
Locking Device Setscrew Locking Collar
Weight 4.0 LB
EAN or UPC 662798249704
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