Collection: Balls - Ceramic - Silicon Nitride

Balls (With Images)

Ceramic

Ruby
Sapphire
Silicon Nitride
Zirconia

14 Products in this selection

Outstanding wear resistance. Good thermal and chemical resistance.
High hardness. Grades shown are AFBMA / ISO3290-1.
High strength over a wide temperature range.
High fracture toughness.
Outstanding wear resistance.
Good thermal and chemical resistance.

Additional resources:
Balls Master Catalogue PDF
AFBMA Ball Grades

A more comprehensive listing may be found on the MBA Minibearings main store at Balls - Ceramic - Silicon Nitride.

Diameter (D)	Material	Precision Grade	Hardness	Properties	Colour
Diameter (D) 1.588 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00159-SN-G25 (10 Pcs) Ceramic Balls - 1.588 mm Si3N4 - Grade 25 38 units (380 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $3.56 AUD Regular price ~~$17.24 AUD~~ Sale price $3.56 AUD Unit price per Per 10
Diameter (D)	Material	Precision Grade	Hardness	Indicative Image
Diameter (D) 1.588 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00159-SN-G25 (10 Pcs) Ceramic Balls - 1.588 mm Si3N4 - Grade 25 38 units (380 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $3.56 AUD Regular price ~~$17.24 AUD~~ Sale price $3.56 AUD Unit price per Per 10
BL-00159-SN-G25 (10 Pcs) --- Ceramic Balls - 1.588 mm Si3N4 - Grade 25 Sale BL-00159-SN-G25 (10 Pcs) --- Ceramic Balls - 1.588 mm Si3N4 - Grade 25 Regular price $3.56 AUD Regular price ~~$17.24 AUD~~ Sale price $3.56 AUD Unit price per 38 Available Now Sale
Diameter (D) 2.381 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00238-SN-G25 (5 Pcs) Ceramic Balls - 2.381 mm Si3N4 - Grade 25 40 units (200 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Per 5
Diameter (D) 2.381 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00238-SN-G25 (5 Pcs) Ceramic Balls - 2.381 mm Si3N4 - Grade 25 40 units (200 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-00238-SN-G25 (5 Pcs) --- Ceramic Balls - 2.381 mm Si3N4 - Grade 25 BL-00238-SN-G25 (5 Pcs) --- Ceramic Balls - 2.381 mm Si3N4 - Grade 25 Regular price $4.41 AUD Regular price Sale price $4.41 AUD Unit price per 40 Available Now
Diameter (D) 2.500 mm +/- 0.00254	Material SI3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: SI3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00250-SN-G25 (20 Pcs) Ceramic Balls - 2.5 mm SI3N4 - Grade 25 24 units (480 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $4.31 AUD Regular price ~~$20.72 AUD~~ Sale price $4.31 AUD Unit price per Per 20
Diameter (D) 2.500 mm +/- 0.00254	Material SI3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: SI3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00250-SN-G25 (20 Pcs) Ceramic Balls - 2.5 mm SI3N4 - Grade 25 24 units (480 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $4.31 AUD Regular price ~~$20.72 AUD~~ Sale price $4.31 AUD Unit price per Per 20
BL-00250-SN-G25 (20 Pcs) --- Ceramic Balls - 2.5 mm SI3N4 - Grade 25 Sale BL-00250-SN-G25 (20 Pcs) --- Ceramic Balls - 2.5 mm SI3N4 - Grade 25 Regular price $4.31 AUD Regular price ~~$20.72 AUD~~ Sale price $4.31 AUD Unit price per 24 Available Now Sale
Diameter (D) 3.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00300-SN-G10 (10 Pcs) Ceramic Balls - 3 mm Si3N4 - Grade 10 100 units (1000 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $8.05 AUD Regular price Sale price $8.05 AUD Unit price per Per 10
Diameter (D) 3.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00300-SN-G10 (10 Pcs) Ceramic Balls - 3 mm Si3N4 - Grade 10 100 units (1000 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $8.05 AUD Regular price Sale price $8.05 AUD Unit price per Per 10 View the product page first if you are unsure.
BL-00300-SN-G10 (10 Pcs) --- Ceramic Balls - 3 mm Si3N4 - Grade 10 BL-00300-SN-G10 (10 Pcs) --- Ceramic Balls - 3 mm Si3N4 - Grade 10 Regular price $8.05 AUD Regular price Sale price $8.05 AUD Unit price per 100 Available Now
Diameter (D) 3.175 mm +/- 0.01270	Material Si3N4	Precision Grade Grade 100	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00318-SN-G100 (50 Pcs) Ceramic Balls - 3.175 mm Si3N4 - Grade 100 8 units (400 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $25.00 AUD Regular price ~~$47.50 AUD~~ Sale price $25.00 AUD Unit price per Per 50
Diameter (D) 3.175 mm +/- 0.01270	Material Si3N4	Precision Grade Grade 100	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00318-SN-G100 (50 Pcs) Ceramic Balls - 3.175 mm Si3N4 - Grade 100 8 units (400 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $25.00 AUD Regular price ~~$47.50 AUD~~ Sale price $25.00 AUD Unit price per Per 50
BL-00318-SN-G100 (50 Pcs) --- Ceramic Balls - 3.175 mm Si3N4 - Grade 100 Sale BL-00318-SN-G100 (50 Pcs) --- Ceramic Balls - 3.175 mm Si3N4 - Grade 100 Regular price $25.00 AUD Regular price ~~$47.50 AUD~~ Sale price $25.00 AUD Unit price per 8 Available Now Sale
Diameter (D) 3.175 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00318-SN-G25 (5 Pcs) Ceramic Balls - 3.175 mm Si3N4 - Grade 25 9 units (45 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per Per 5
Diameter (D) 3.175 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00318-SN-G25 (5 Pcs) Ceramic Balls - 3.175 mm Si3N4 - Grade 25 9 units (45 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-00318-SN-G25 (5 Pcs) --- Ceramic Balls - 3.175 mm Si3N4 - Grade 25 BL-00318-SN-G25 (5 Pcs) --- Ceramic Balls - 3.175 mm Si3N4 - Grade 25 Regular price $3.77 AUD Regular price Sale price $3.77 AUD Unit price per 9 Available Now
Diameter (D) 4.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00400-SN-G25 (10 Pcs) Ceramic Balls - 4 mm Si3N4 - Grade 25 14 units (140 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $3.41 AUD Regular price ~~$16.52 AUD~~ Sale price $3.41 AUD Unit price per Per 10
Diameter (D) 4.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00400-SN-G25 (10 Pcs) Ceramic Balls - 4 mm Si3N4 - Grade 25 14 units (140 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $3.41 AUD Regular price ~~$16.52 AUD~~ Sale price $3.41 AUD Unit price per Per 10
BL-00400-SN-G25 (10 Pcs) --- Ceramic Balls - 4 mm Si3N4 - Grade 25 Sale BL-00400-SN-G25 (10 Pcs) --- Ceramic Balls - 4 mm Si3N4 - Grade 25 Regular price $3.41 AUD Regular price ~~$16.52 AUD~~ Sale price $3.41 AUD Unit price per 14 Available Now Sale
Diameter (D) 4.763 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00476-SN-G25 (5 Pcs) Ceramic Balls - 4.763 mm Si3N4 - Grade 25 269 units (1345 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $2.14 AUD Regular price ~~$10.06 AUD~~ Sale price $2.14 AUD Unit price per Per 5
Diameter (D) 4.763 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00476-SN-G25 (5 Pcs) Ceramic Balls - 4.763 mm Si3N4 - Grade 25 269 units (1345 pcs) Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $2.14 AUD Regular price ~~$10.06 AUD~~ Sale price $2.14 AUD Unit price per Per 5
BL-00476-SN-G25 (5 Pcs) --- Ceramic Balls - 4.763 mm Si3N4 - Grade 25 Sale BL-00476-SN-G25 (5 Pcs) --- Ceramic Balls - 4.763 mm Si3N4 - Grade 25 Regular price $2.14 AUD Regular price ~~$10.06 AUD~~ Sale price $2.14 AUD Unit price per 269 Available Now Sale
Diameter (D) 5.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00500-SN-G25 (5 Pcs) Ceramic Balls - 5 mm Si3N4 - Grade 25 20 units (100 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $12.77 AUD Regular price Sale price $12.77 AUD Unit price per Per 5
Diameter (D) 5.000 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00500-SN-G25 (5 Pcs) Ceramic Balls - 5 mm Si3N4 - Grade 25 20 units (100 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $12.77 AUD Regular price Sale price $12.77 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-00500-SN-G25 (5 Pcs) --- Ceramic Balls - 5 mm Si3N4 - Grade 25 BL-00500-SN-G25 (5 Pcs) --- Ceramic Balls - 5 mm Si3N4 - Grade 25 Regular price $12.77 AUD Regular price Sale price $12.77 AUD Unit price per 20 Available Now
Diameter (D) 6.350 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00635-SN-G25 (5 Pcs) Ceramic Balls - 6.35 mm Si3N4 - Grade 25 294 units (1470 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $16.68 AUD Regular price Sale price $16.68 AUD Unit price per Per 5
Diameter (D) 6.350 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00635-SN-G25 (5 Pcs) Ceramic Balls - 6.35 mm Si3N4 - Grade 25 294 units (1470 pcs) Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $16.68 AUD Regular price Sale price $16.68 AUD Unit price per Per 5 View the product page first if you are unsure.
BL-00635-SN-G25 (5 Pcs) --- Ceramic Balls - 6.35 mm Si3N4 - Grade 25 BL-00635-SN-G25 (5 Pcs) --- Ceramic Balls - 6.35 mm Si3N4 - Grade 25 Regular price $16.68 AUD Regular price Sale price $16.68 AUD Unit price per 294 Available Now
Diameter (D) 7.938 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00794-SN-G25 Ceramic Balls - 7.938 mm Si3N4 - Grade 25 222 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Each
Diameter (D) 7.938 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00794-SN-G25 Ceramic Balls - 7.938 mm Si3N4 - Grade 25 222 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per Each View the product page first if you are unsure.
BL-00794-SN-G25 --- Ceramic Balls - 7.938 mm Si3N4 - Grade 25 BL-00794-SN-G25 --- Ceramic Balls - 7.938 mm Si3N4 - Grade 25 Regular price $5.68 AUD Regular price Sale price $5.68 AUD Unit price per 222 Available Now
Diameter (D) 9.525 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00953-SN-G25 Ceramic Balls - 9.525 mm Si3N4 - Grade 25 14 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each
Diameter (D) 9.525 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 25	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: AFBMA
Part Number: BL-00953-SN-G25 Ceramic Balls - 9.525 mm Si3N4 - Grade 25 14 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per Each View the product page first if you are unsure.
BL-00953-SN-G25 --- Ceramic Balls - 9.525 mm Si3N4 - Grade 25 BL-00953-SN-G25 --- Ceramic Balls - 9.525 mm Si3N4 - Grade 25 Regular price $10.41 AUD Regular price Sale price $10.41 AUD Unit price per 14 Available Now
Diameter (D) 13.490 mm +/- 0.001	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: ISO 3290 Notes: 17/32 (13.49375) With -4 Ball Gauge
Part Number: BL-01349-SN-G10-U4 Ceramic Balls - 13.49 mm Si3N4 - Grade 10 10 Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Each
Diameter (D) 13.490 mm +/- 0.001	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: ISO 3290 Notes: 17/32 (13.49375) With -4 Ball Gauge
Part Number: BL-01349-SN-G10-U4 Ceramic Balls - 13.49 mm Si3N4 - Grade 10 10 Available Now \| Item Discontinued - Only the quantity available may be ordered - Please contact us if you need a larger quantity Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per Each
BL-01349-SN-G10-U4 --- Ceramic Balls - 13.49 mm Si3N4 - Grade 10 Sale BL-01349-SN-G10-U4 --- Ceramic Balls - 13.49 mm Si3N4 - Grade 10 Regular price $8.00 AUD Regular price ~~$15.20 AUD~~ Sale price $8.00 AUD Unit price per 10 Available Now Sale
Diameter (D) 13.494 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq	Properties Good wear resistance and thermal resistance	Colour Grey
Material: Si3N4 Specific Gravity: 3.29 Standard: ISO 3290
Part Number: BL-01349-SN-G10 Ceramic Balls - 13.494 mm Si3N4 - Grade 10 9 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $15.77 AUD Regular price Sale price $15.77 AUD Unit price per Each
Diameter (D) 13.494 mm +/- 0.00254	Material Si3N4	Precision Grade Grade 10	Hardness 1580 kg/mm.sq
Material: Si3N4 Properties: Good wear resistance and thermal resistance Colour: Grey Specific Gravity: 3.29 Standard: ISO 3290
Part Number: BL-01349-SN-G10 Ceramic Balls - 13.494 mm Si3N4 - Grade 10 9 Available Now \| Further orders can be expected around Sat, May 24, 2025 Regular price $15.77 AUD Regular price Sale price $15.77 AUD Unit price per Each View the product page first if you are unsure.
BL-01349-SN-G10 --- Ceramic Balls - 13.494 mm Si3N4 - Grade 10 BL-01349-SN-G10 --- Ceramic Balls - 13.494 mm Si3N4 - Grade 10 Regular price $15.77 AUD Regular price Sale price $15.77 AUD Unit price per 9 Available Now