Silicon Nitride (Si3N4)

Silicon Nitride Balls

Silicon Nitride (Si3N4) ceramic balls are typically used in bearings and have a high heat resistance with low friction. Silicon Nitride balls are commonly used in industries such as aerospace, military and defense, hybrid bearings and full ceramics bearings.

Precision Plastic Ball Company is a leading manufacturer of silicon nitride precision balls as well as steel, aluminum, and plastic precision balls. We are proud to supply your silicon nitride bearing balls and other Si3N4 ceramic ball needs. Our inventory ranges in diameter size include 1 1/2", 1/4", and more.

Silicon Nitride Si3N4 Ceramic Ball Bearings Features & Properties

Our ceramic ball bearings are manufactured from Si3N4 Silicone Nitride when a high heat resistance and low friction are needed. The lightweight of this hard ceramic reduces skidding and wear under acceleration and high speeds. Silicon nitride balls are also extremely resistant to chemicals and other corrosive elements, and their moderate rate of thermal conductivity plus low coefficient of thermal expansion reduces cooling costs.

These outstanding properties make them ideal for high-temperature and high-impact environments. For example, silicon nitride ball bearings have been used for decades in military applications such as aircraft and even in NASA’s STS Space Shuttle program.

  • Silicon Nitride Ball Bearings are Ideal for High Temperature & High-Impact Environments
  • Balls manufactured from silicon nitride are used when a high heat resistance and low friction are needed. The lightweight of this hard ceramic reduces skidding and wear under acceleration and high speeds

  • Silicon Nitride Ball Bearings are Electrically Non-Conductive
  • Our bearings are non-conductive and therefore suitable for applications such as electric motor shaft bearings for AC and DC motors and generators. Silicon Nitride Ball Bearings are becoming the industry standard in electric motor manufacturing for electric & autonomous vehicles.

  • Silicon Nitride Ball Bearings Offer High Wear-Resistance and Long Service Life
  • Our bearings cause less friction within the bearing assemblies contributes to extended bearing service life and extended re-lubrication intervals.

Applications

  • Aerospace
  • Military & Defense
  • Hybrid bearings
  • Full ceramic bearings
  • Gas turbines
  • Automotive engine parts
  • Metalworking tools

Strengths

  • Retains strength and hardness up to 1800 °F
  • Excellent resistance to corrosion and chemicals
  • Weighs 60% less than steel
  • Longer life than steel
  • Generates less friction
  • Low coefficient of thermal expansion
  • Low thermal conductivity which reduces need for system cooling
  • Good shock resistance
  • High elasticity
  • High fracture toughness
  • Requires minimal lubrication
  • Non-porous
  • Non-magnetic

Weaknesses

  • Risk of toxic off-gassing when heated to decomposition
  • Subject to attack by acids and may generate flammable hydrogen gas under highly acidic conditions

For more information or to submit an order, give us a call today at 847.678.2255 or browse our product catalog at the bottom of the page.

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0.5 MM Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 0.5MM_SI3N4_GR5_BALLS View Details
0.8 MM Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 0.8MM_SI3N4_GR.5_BALLS View Details
1 1/2 in. (1.5) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-1-2IN_SI3N4_GR_20_BALLS View Details
1 1/4 in. (1.25) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-1-4IN_SI3N4_GR_20_BALLS View Details
1 1/8 in. (1.125) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-1-8_SI3N4_GR_20_BALLS View Details
1 3/16 in. (1.187) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-3-16IN_Si3N4_GR_20_BALLS View Details
1 in. (1) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-IN_SI3N4_GR_10_BALLS View Details
1.2 MM GR.3 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1.2MM_SI3N4_GR.3_BALL View Details
1.2 MM GR.5 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1.2MM_SI3N4_GR.5_BALLS View Details
1.3 MM Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1.3MM_SI3N4_GR._3_BALL View Details
1.5 MM GR.3 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1.5MM_SI3N4_GR.3_BALLS View Details
1.5 MM GR.5 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1.5MM_SI3N4_GR.5_BALLS View Details
1/16 in. (0.0625) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-16IN_SI3N4_GR.5_BALLS View Details
1/2 in. (0.5) GR.10 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-2IN_SI3N4_GR_10_BALLS View Details
1/2 in. (0.5) GR.5 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-2IN_SI3N4_GR.5_BALLS View Details
1/32 in. (0.03125) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-32IN_SI3N4_GR.5_BALLS View Details
1/4 in. (0.25) GR.5 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-4IN_SI3N4_GR.5_BALLS View Details
1/8 in. (0.125) Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 1-8_IN_SI3N4_GR.5_BALLS View Details
15/16 in. (15/16) GR.20 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 15-16IN_SI3N4_GR_20_BALLS View Details
15/16 in. (15/16) GR.5 Natural Silicon Nitride (Si<sub>3</sub>N<sub>4</sub>) Series Ceramic Precision Balls 15-16IN_SI3N4_GR.5_BALLS View Details
25 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 25MM_SI3N4_GR_20_BALLS View Details
3/16 in. (0.1875) GR. 5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-16IN-C_SI3N4_GR.5_BALLS View Details
3/32 in. (0.09375) GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-32IN-C_SI3N4_GR.5_BALLS View Details
3/4 in. (0.75) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-4_IN-C_SI3N4_GR.10_BALLS View Details
3/64 in. (0.046875) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-64IN-C_SI3N4_GR.5_BALLS View Details
3/8 in. (0.375) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-8IN-C_SI3N4_GR.5_BALLS View Details
30 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 30MM-C_Si3N4_GR_20_BALLS View Details
1 MM GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 1MM_SI3N4_GR.3_BALLS View Details
1 MM GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 1MM_SI3N4_GR.5_BALLS View Details
1/4 in. (0.25) GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 1-4IN_SI3N4_GR.3_BALLS View Details
10 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 10MM_SI3N4_GR.5_BALLS View Details
11/16 in. (0.6875) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 11-16_IN_Si3N4_GR_10_BALLS View Details
11/32 in. (0.34375) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 11-32_IN_SI3N4_GR_5_BALLS View Details
12 MM GR.10 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 12MM_SI3N4_GR.10_BALLS View Details
12 MM GR.16 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 12MM_SI3N4_GR.16_BALLS View Details
13 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 13MM_Si3N4_GR_10_BALLS View Details
13/16 in. (13/16) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 13-16IN_SI3N4_GR_20_BALLS View Details
13/32 in. (13/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 13-32_IN_SI3N4_GR._5_BALLS View Details
14 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 14MM_SI3N4_GR_16_BALLS View Details
15 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 15MM_SI3N4_GR_16_BALLS View Details
15/32 in. (15/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 15-32IN_SI3N4_GR.5_BALL View Details
15/64 in. (15/64) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 15-64IN_SI3N4_GR.5_BALLS View Details
17/32 in. (17/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 17-32IN_Si3N4_GR_5_BALLS View Details
17/64 in. (17/64) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 17-64IN_SI3N4_GR.5_BALLS View Details
19/32 in. (19/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 19-32IN_SI3N4_GR._5_BALLS View Details
2 MM GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 2MM-C_SI3N4_GR.3_BALLS View Details
2 MM GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 2MM-C_SI3N4_GR.5_BALLS View Details
2.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 2.5MM_SI3N4_GR.5_BALLS View Details
20 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 20MM_SI3N4_GR20_BALLS View Details
21/32 in. (21/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 21-32IN_SI3N4_GR_16_BALLS View Details
22 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 22MM_SI3N4_GR_20_BALLS View Details
23/32 in. (23/32) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 23-32IN_SI3N4_GR_16_BALLS View Details
3 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3MM-C_SI3N4_GR.5_BALLS View Details
3.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3.5MM-C_SI3N4_GR.5_BALLS View Details
3/16 in. (0.1875) GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-16_IN-C_SI3N4_GR.3_BALLS View Details
3/32 in. (0.09375) GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 3-32_IN-C_SI3N4_GR.3_BALLS View Details
4 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 4MM-C_SI3N4_GR.5_BALLS View Details
4.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 4.5MM-C_SI3N4_GR.5_BALLS View Details
5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5MM-C_SI3N4_GR.5_BALLS View Details
5.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5.5MM-C_SI3N4_GR.5_BALL View Details
5/16 in. (0.3125) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5-16IN-C_SI3N4_GR.5_BALLS View Details
5/32 in. (0.15625) GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5-32_IN-C_SI3N4_GR.3_BALLS View Details
5/32 in. (0.15625) GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5-32IN-C_SI3N4_GR.5_BALLS View Details
5/64 in. (0.078125) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5-64_IN_SI3N4_GR5_BALLS View Details
5/8 in. (0.625) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 5-8_IN-C_SI3N4_GR_16_BALLS View Details
6 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 6MM-C_SI3N4_GR.5_BALLS View Details
6.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 6.5MM-C_SI3N4_GR.5_BALLS View Details
7 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7MM-C_SI3N4_GR.5_BALLS View Details
7.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7.5MM-C_SI3N4_GR.5_BALLS View Details
7/16 in. (0.4375) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7-16IN-C_SI3N4_GR.5_BALLS View Details
7/32 in. (0.21875) GR.3 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7-32IN-C_SI3N4_GR.3_BALLS View Details
7/32 in. (0.21875) GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7-32IN-C_SI3N4_GR.5_BALLS View Details
7/64 in. (0.109375) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 7-64_IN-C_SI3N4_GR.5_BALLS View Details
7/8 in. (0.875) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls; Grade 10 7-8IN-C_Si3N4_GR_10_BALLS View Details
7/8 in. (0.875) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls; Grade 5 7-8IN-C_Si3N4_GR_5_BALLS View Details
8 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 8MM-C_SI3N4_GR.5_BALLS View Details
8.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 8.5MM-C_SI3N4_GR.5_BALLS View Details
9 MM GR.10 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 9MM-C_SI3N4_GR.10_BALLS View Details
9 MM GR.5 Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 9MM-C_SI3N4_GR.5_BALLS View Details
9.5 MM Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 9.5MM-C_SI3N4_GR.5_BALLS View Details
9/16 in. (0.5625) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 9-16IN-C_SI3N4_GR_16_BALLS View Details
9/32 in. (0.28125) Natural Silicon Nitride (Si3N4) Series Ceramic Precision Balls 9-32IN-C_SI3N4_GR.5_BALLS View Details

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