Miniature Bearings Australia - MBA Minibearings
Miniature Bearings Australia

BL-00318-S420-G28 - Datasheet

MBA

Category Information

Balls - Metallic - Stainless Steel - 400 Grade

400 Grade Stainless Steel Metallic Balls. Hardness: Rockwell C: 55-60. Includes 420 and 440C grades

  • Grades shown are AFBMA and ISO3290-1 which relates primarily to the ovality of the ball rather than the diametrical tolerance
  • General balls offered for sale may be from different ball lots, so the diametrical tolerance shown, indicates a variance that might be encountered if balls of different gauges are mixed, unless a ball gauge is specified for the part.
  • For diametrically critical applications, a special quote can be obtained for balls of a specified ball gauge.
  • AISI440C Stainless Steel.

Product Data

  • Diameter (D) : 3.175 mm +/- 0.00254
    (Equiv. 0.125 in.)
  • Material 420 Stainless
  • Precision ISO 3290 Grade 20
  • Hardness 55-60 Rockwell C
  • Properties Commonly used in precision bearings. Corrosion resistant.
  • Colour Silver
  • Specific Gravity 7.833
  • Ovality +/-0.00050
  • Material Stainless Steel AISI 420C Rc 46-52
Country of Origin: TW

Product Compliance and Data

Additional Resources

Cross References

  • Mil-Spec MS19060-4808
  • MS190604808
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