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Boston Gear® B4048-32
Boston Gear®

Boston Gear® B4048-32

Boston Gear®


Boston Gear® Bost-Bronz® B4048-32 Cylindrical Round Bore Plain Sleeve Bearing, 2-1/2 in Dia Bore, 3 in OD, 4 in W

  • Item#: B4048-32
  • Mfr#: B4048-32
  • UPC: 781711353868
  • Bost-Bronz® bearing's tight tolerances allow for reduced shaft clearances and better press fits
  • Designed for immediate installation
  • Long lasting lubrication offers an oil film for smooth start ups
  • No oil hole or groove requirements
  • Min. Order Qty: 1
  • Qty. Interval: 1
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Bost-Bronz® is Boston Gear®'s all-purpose, oil-impregnated, porous bronze bearing material. It is manufactured using the powdered metal process with the purest metal powders. This process ensures the uniform distribution of pores between the bronze particles which absorb the oil by capillary action. In addition, Bost-Bronz® has a self-contained oil supply (approximately 20% by volume) which provides a uniform protective film over the entire bearing surface. As a result, Bost-Bronz® bearings are one of the most effective bearings available for precision performance. Bost-Bronz® bearings are also highly versatile and can be used for production and replacement requirements throughout general industry. They have proven to be efficient under heavy loads at moderate speeds, as well as under light loads at high speeds. In addition, they are ideally suited for applications where normal lubrication is difficult or impossible to provide.

Boston Gear® Bost-Bronz® Plain Sleeve Bearing, Cylindrical Round Bore, 2-1/2 in Bore, 3 in OD, 4 in Width, 10 to 220 deg F, 2000 psi Maximum, 1200 fpm Maximum Velocity, 50000 Maximum PV, Oil Impregnated Sintered Bronze Bearing


Bearing Material      :      Oil Impregnated Sintered Bronze
Maximum PV Rating      :      50000
Maximum Pressure      :      2000 psi
Maximum Velocity      :      1200 fpm
Temperature Rating      :      10 to 220 deg F
Type      :      Cylindrical Round Bore
Bore Diameter      :      2-1/2 in
Outside Diameter      :      3 in
Width      :      4 in


  • pdf
  • pdf
    Specification Sheet