SKF 71948CD/P4AL bearing

SKF 71948CD/P4AL bearing | Angular Contact Ball Bearing | 240x320x38

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    Angular contact ball bearings, super-precision 71948 CD/P4AL

  • Bearing number : 71948 CD/P4AL
  • Size (mm) : 240x320x38
  • Brand : SKF
  • Bore Diameter (mm) : 240
  • Outer Diameter (mm) : 320
  • Width (mm) : 38
  • Bearing dimensions and specification in SKF catalogue:

  • d - 240 mm
  • D - 320 mm
  • B - 38 mm
  • d1 - 264.7 mm
  • d2 - 264.7 mm
  • D1 - 295.3 mm
  • b - 3.5 mm
  • C1 - 20.9 mm
  • C2 - 7.1 mm
  • C3 - 5.45 mm
  • r1,2 - min. - 2.1 mm
  • r3,4 - min. - 1 mm
  • a - 56.6 mm
  • da - min. - 251 mm
  • db - min. - 251 mm
  • Da - max. - 309 mm
  • Db - max. - 315 mm
  • ra - max. - 2 mm
  • rb - max. - 1 mm
  • dn - 271.4 mm
  • Basic dynamic load rating - C - 229 kN
  • Basic static load rating - C0 - 325 kN
  • Fatigue load limit - Pu - 8.2 kN
  • Limiting speed for grease lubrication - 3800 r/min
  • Limiting speed for oil lubrication - 5600 mm/min
  • Ball - Dw - 25.4 mm
  • Ball - z - 31
  • Gref - 93 cm3
  • Calculation factor - f0 - 16.7
  • Preload class A - GA - 860 N
  • Preload class B - GB - 1720 N
  • Preload class C - GC - 3440 N
  • Preload class D - GD - 6880 N
  • Calculation factor - f - 1.32
  • Calculation factor - f1 - 1
  • Calculation factor - f2A - 1
  • Calculation factor - f2B - 1.04
  • Calculation factor - f2C - 1.09
  • Calculation factor - f2D - 1.15
  • Calculation factor - fHC - 1
  • Preload class A - 237 N/micron
  • Preload class B - 325 N/micron
  • Preload class C - 461 N/micron
  • Preload class D - 678 N/micron
  • Mass bearing - 8.5 kg

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