PWB-12T-4 plain sphercial bearing: 3/4″ bore x 1.375″ OD x .750″ BW x .625″ RW

AURORA PWB-12T-4 plain wide sphercial bearing, maintenance free with PTFE liner

spherical bearings

Aurora PWB-12T-4 wide spherical bearing drawing

Aurora PWB-12T-4 wide spherical bearing drawing with dimensions



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  • Bore: .750″ (19.05 mm)
  • Outside diameter (OD): 1.375″ (34.925 mm)
  • Ball width (BW): .750″ (19.05 mm)
  • Race width (RW): .625″ (15.875 mm)
  • Fit / no load breakaway torque: preloaded fit
  • Material
    1. Ball: Alloy steel, heat treated, hard chrome plated
    2. Race: 17-4 PH stainless steel, heat treated
    3. PTFE liner: AT3200 (PTFE / Nomex laminate) qualified to SAE-AS81820 Type A for highest performance
  • Maximum operating temperature: 163° C (325° F)
  • Manufacturer: Aurora Bearing Company

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