Miniature Bearings Australia - MBA Minibearings
Miniature Bearings Australia

R4-MC3-ACO - 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) : 6.350 mm + 0.000 / - 0.0075
    (Equiv. 0.25 in.)
  • OD (D) 15.875 mm + 0.000 / - 0.0075
    (Equiv. 0.625 in.)
  • Width (B) 4.978 mm + 0.000 / - 0.125
    (Equiv. 0.196 in.)
  • Precision Grade Abec 1
  • Closure Type Open
  • Bearing Type Radial
  • Material Chrome Steel SAE 52100
  • Lubrication Type Oil
  • Lubrication Name ACO Anti Corrosion Oil Film
  • Basic Part R4
  • Limiting Speed 45000
  • Cage Type Ribbon
  • Static Load Rating KGf 63
  • Dynamic Load Rating KGf 151
  • Radii 0.30 mm
  • Inner Shoulder (UI) 9.35mm
  • Outer Shoulder (UO) 12.85 mm
  • Number of Balls 8
  • Clearance MC3 (5 to 10)
  • Precision Grade Abec 1
  • Closure Type Open
  • Max Temperature 120 Deg. C
Country of Origin: JP

Product Compliance and Data

Additional Resources

Applications & Uses

  • RC Nitro Engine Parts
  • K.B - 21 - 3.5 Aircraft - Front Bearing
  • K.B - 3.5 Inboard New - Front Bearing
  • K.B - 3.5 Outboard Old - Front Bearing
  • K.B - 3.5 Outboard X.196 - Front Bearing
  • K.B - 40-11 - Front Bearing
  • McCoy - 29 Old 1946 - Front Bearing
  • OS - FS60 - 4 Stroke - Camshaft Bearing 6.35-15.875mm
  • OS - FS90 - 4 Stroke W-Muffler - Camshaft Rear Bearing 6.35-15.875mm
  • Veco - 19 - Front Bearing

Cross References

  • 60355K503
  • GRW BR1-4A
  • FAG EE1.1-2
  • FAG R4
  • MPB R4
  • NHBB R4
  • NTN R4
  • WIB R4
  • MPB R4C
  • NHBB R-4KC
  • MPB R4R
  • FAFNIR S1K7
  • ADR Y1-4
  • BR14A
  • EE112
  • R4KC
  • R8020
  • R4MC3P13
  • R4 Basic Size Ref
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