Miniature Bearings Australia - MBA Minibearings
Miniature Bearings Australia

R4-12B-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) : 6.350 mm + 0.000 / - 0.0075
    (Equiv. 0.25 in.)
  • OD (D) 19.050 mm + 0.000 / - 0.010
    (Equiv. 0.75 in.)
  • Width (B) 7.142 mm + 0.000 / - 0.125
    (Equiv. 0.281 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 R4-12B
  • Limiting Speed 24480
  • Cage Type Ribbon
  • Static Load Rating KGf 91
  • Dynamic Load Rating KGf 238
  • Radii 0.40 mm
  • Inner Shoulder (UI) 8.50mm
  • Outer Shoulder (UO) 16.50 mm
  • Number of Balls 6
  • 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

Applications & Uses

  • RC Nitro Engine Parts
  • Enya - 35X Heli ABC - 60 - Bearing 6.35-19.05-7.14mm
  • Enya - 50 All Models - Bearing 6.35-19.05-7.14mm
  • Enya - 53 All Models - Bearing 6.35-19.05-7.14mm

Cross References

  • 60355K702
  • Nachi 99R4A
  • SKF EE2-2RS
  • SKF EE2-RS
  • Sealed R4 / 7
  • Nachi R4A-2NSL
  • WIB R4A-2RSR
  • WIB R4A-RSR
  • FAFNIR S1PP
  • EERS
  • EE22RS
  • EE2RS
  • R4AVV
  • R4-12B-RSMC3
  • R4ARS
  • R412BRSMC3
  • R4ARSR
  • R4-12B-2RSMC3
  • R4A2NSL
  • R4A2RS
  • R412B2RSMC3
  • R4AADDMC3E
  • R4A2RSR
  • R4ADDU
  • R4-12B Basic Size Ref
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