Miniature Bearings Australia - MBA Minibearings
Miniature Bearings Australia

MR128A-2RS-MC3 - Datasheet

MBA

Category Information

Bearings - Single Row Ball - Unflanged - Precision - Chrome Steel

Chrome Steel Precision Unflanged Single Row Ball Bearings. Chrome steel radial ball bearings.

  • Single row radial ball bearings are arguably the most common, widely used type of bearing. They consist of an inner ring, an outer ring, a set of balls, and a cage that retains the balls in a circular path.
  • Single row radial ball bearings are commonly used in a wide range of applications, including electric motors, fans, pumps, gearboxes, agricultural equipment, appliances, and automotive components.
  • They are versatile, cost-effective bearings that provide reliable support for radial loads and some axial loads in one direction. An expanded range may be available on special order. Please enquire.
  • Standard single row radial ball bearings.

Product Data

  • ID (d) : 8.000 mm + 0.000 / - 0.0075
    (Equiv. 0.315 in.)
  • OD (D) 12.000 mm + 0.000 / - 0.0075
    (Equiv. 0.472 in.)
  • Width (B) 3.500 mm + 0.000 / - 0.125
    (Equiv. 0.138 in.)
  • Precision Grade Abec 1
  • Closure Type 2RS
  • Bearing Type Radial
  • Material Chrome Steel SAE 52100
  • Lubrication Type Grease
  • Lubrication Name Standard Unspecified
  • Basic Part MR128A
  • Limiting Speed 27200
  • Cage Type Crown
  • Static Load Rating KGf 28
  • Dynamic Load Rating KGf 55
  • Radii 0.15 mm
  • Inner Shoulder (UI) 9.05mm
  • Outer Shoulder (UO) 11.33 mm
  • Number of Balls 12
  • Clearance MC3 (5 to 10)
  • Precision Grade Abec 1
  • Closure Type 2RS
  • Max Temperature 80 Deg. C
Country of Origin: JP

Product Compliance and Data

Additional Resources

Cross References

  • Sealed Width A MR128 / 4
  • Sealed MR128A / 4
  • MR128RSMC2
  • MR128-RSMC2
  • MR128A-RSMC3
  • MR128ARSMC3
  • MR128A-2RSMC3
  • MR128-2RSMC2
  • MR1282RSMC2
  • MR128A2RSMC3
  • MR128A Basic Size Ref
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