silicon nitride ball

Silicon Nitride Balls 0.400mm

$ 2.00

In stock Silicon Nitride balls available in sizes from 0.5mm to 63.50mm

Conforms to ASTM Specification F2094; Class I and Class II materials.

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Silicon Nitride Balls

Silicon Nitride Balls are specified for use in such high-technology industries such as full ceramics bearing, hybrid bearings, aerospace and defense, they are featured in these advanced characteristics:

  • Excellent corrosion resistance withstands attack from harsh chemicals and demanding environmental conditions.
  • Lightweight Silicon Nitride weighs 60% less than steel which reduces centrifugal force, skidding, wear under high speed and acceleration.
  • Superior Surface Finish, Ra 0.17-0.25 micro inches may extend L-10 life to as much as 10 times that of steel bearings.
  • High Temperature Hardness is twice as hard than steel. These all-ceramic balls retain their strength and hardness up to 1800 degrees F.
  • Further characterized by its low density of 3.2 g/cc, high flexural strength of 1.0 GPa, and fracture toughness of 6 MPa/M2.
  • Ortech balls manufacturing capability ranges in size from 0.5mm to 63.50mm.
  • We offer Silicon Nitride balls conforms to ASTM Specification F2094; Class I and Class II materials .

 Grade Table

ABMA Grade Round DIA Toler Per Ball Basic DIA Toler Surface Roughness in Micro-inches
3 .000003″ (.08) ±.000030″ (±.75) 0.5 (0.012)
5 .000005″ (.13) +.000050/-.000040 (+1.25/-1) 0.8 (0.02)
10 .000010″ (.25) +.000050/-.000040 (+1.25/-1) 1.0 (0.025)
16 .000016″ (0.4) +.000050/-.000040 (+1.25/-1) 1.0 (0.025)
(microns)

Properties of Silicon Nitride (Si3N4)

Ceramic Bearing 

Weight .005 lbs
Dimensions 0.015 × 0.015 × 0.015 in
Outside Diameter