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National Precision Bearing

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6311 Ball Bearings 6300 Type

NPB Part Series 6311
Standard Reference No. 6311
PRODUCT MODELS

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Specifications

  • Bore Diameter mm
    55
  • Bore Diameter Inches
    2.1654
  • Bore Diameter Tolerance
    -.0006
  • Outside Diameter mm
    120
  • Outside Diameter Inches
    4.7244
  • Outside Diameter Tolerance
    0.0006
  • Width MM
    29
  • Width Inches
    1.1417
  • Max Fillet Radius
    0.08
  • Ball Complement No.
    8
  • Ball Complement Size
    13/16
  • Dynamic Load Rating
    9400
  • Static Load Rating
    12410
  • Download Spec Sheet

Products Available Online

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INTERCHANGE

National Precision Bearing Part series 6311 is a potential replacement for these common bearing part numbers:

  • SKF
    6311
  • KOYO
    6311
  • NACHI
    6311
  • TIMKEN/FAFNIR/TORRINGTON
    311K
  • FEDERAL
    1311
  • HOOVER
    311
  • NTN
    6311
  • MRC
    311S
  • NORMA HOFFMAN
    311
  • NEW DEPARTURE
    3311
  • FAG
    6311
  • NSK
    6311
  • STEYR
    6311
  • ISO SERIES
    6311

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