Miniature Bearings Australia - MBA Minibearings
Miniature Bearings Australia

SR166A-MC34-U7-AF12 - Datasheet

MBA

Category Information

Bearings - Single Row Ball - Unflanged - High Precision - Standard

Standard High Precision Unflanged Single Row Ball Bearings. Stainless Steel Bearings - Abec 5 and Abec 7.

  • 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.
  • Single row radial ball bearings.
  • High precision bearings are not recommended for skates or fishing reels.
  • High precision bearings are used in accurately balanced application such as spindles, gyros and medical equipment.
  • If your application is not of a precision nature, standard bearings may be more suitable (and less expensive).

Product Data

  • ID (d) : 4.763 mm + 0.000 / - 0.004
    (Equiv. 0.188 in.)
  • OD (D) 9.525 mm + 0.000 / - 0.005
    (Equiv. 0.375 in.)
  • Width (B) 2.779 mm + 0.000 / - 0.040
    (Equiv. 0.109 in.)
  • Precision Grade Abec 7
  • Closure Type Open
  • Bearing Type Radial
  • Lubricant Aeroshell Fluid 12 - AF12 Oil
  • Material Stainless Steel AISI 440C
  • Lubrication Type Oil
  • Lubrication Name AF12 Aeroshell Fluid 12
  • Basic Part R166A
  • Limiting Speed 58052.8
  • Cage Type Standard
  • Static Load Rating KGf 28
  • Dynamic Load Rating KGf 72
  • Radii Undefined mm
  • Inner Shoulder (UI) Undefinedmm
  • Outer Shoulder (UO) Undefined mm
  • Number of Balls Undefined
  • Clearance MC34 (5 to 13)
  • Precision Grade Abec 7
  • Closure Type Open
  • Max Temperature 120 Deg. C
Country of Origin: US

Product Compliance and Data

Additional Resources

Cross References

  • R166A
  • R166A Basic Size Ref
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