Thomson 4RJR4


Precision Ball, Ceramic, 1/2 In, Pk10, Pack of 15

4RJR4 637950
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ItemPrecision Ball
TypeCorrosion Resistant
MaterialSilicon Nitride Ceramic
Dia. Tolerance+/-0.00005"
Vickers Hardness1400 to 1600 HV20
Application Aerospace, Energy, Medical
Standards ANSI/ABMA
Package Quantity 10


Precision Ball, Corrosion Resistant, Silicon Nitride Ceramic, Grade 10, Diameter 1/2 In, Weight 5.641g, HV20 Hardness 1400 to 1600, Application Aerospace, Energy, Medical, Standards ANSI/ABMA, Package Quantity 10, Dia. Tolerance +/-0.00005 In

  • Note: Additional lot sizes are available on .

Thomson Precision Balls
  • Silicone Nitride Ceramic
  • Noncorrosive, nonmagnetic material withstands temperatures to 1800 F and exposure to harsh chemicals. Can be run dry in vacuum environments, and in temperatures up to 500 without lubrication. Up to 60% lighter than steel, with as much as twice the material hardness and 70% less thermal expansion.
  • Grade 10 Vickers hardness: 1400 to 1600 HV20 Dia. tolerance: 0.00005"

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