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Category: "R" Series Ball Bearings

  1. Also available in Stainless Steel, add prefix "S"
  2. ABEC Grades 1, 3, 5, 7, and 9 are available.
  3. Two metal shields = (ZZ), also available with a single metal shield = (Z).
Attributes Values
Bearing Type Flanged Shielded with Extended Inner
Bore Dia (d) 0.2500
Outer Dia (D) 0.6250
Outer Width (Bo) 0.1960
Inner Width (Bi) 0.2272
Radius (min) (rs) 0.002
Flange Dia (Df) 0.6900
Flange Width (Bf) 0.042
Dynamic Load Rating (Cr) 333
Static Load Rating (Cor) 131
Max Speed (Grease) (X1000 RPM) 38
Max Speed (Oil) (X1000 RPM) 45
Max. Shaft Shoulder Dia. Inner (Ui) 0.3
Min. Housing Shoulder Dia., Outer (Uo) 0.543
Ball Qty 8
Ball Dia (Dw) 0.0937
Weight (g) 4.90
Precision A1
Standard Clearance K25
Material 52100 Chrome steel (or equivalent)
Additional Information
Closures and Seals
Cages and Retainers
Tolerances and Precision
Internal Clearance
Fitting and Mounting
Load and Life Calculation Information
eDrawings file (.ePRT, eASM)
The information in AST Bearings herein is provided for informational purposes only. This information should not be relied upon for design, development or other purposes.
Contact AST Bearings for the most current product information as it applies to you and for your product information.