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Email icon Stainless steel and miniature ball bearings SMB logo ZrO2 Si3N4 >>Back to the Top

BORE

(inch)

O.D.

(inch)

WIDTH

(inch)

SMB REFERENCE

MORE INFO

SMB REFERENCE

MORE INFO

0.125

0.375

0.1562

CCSI-R2

info

CCSI-R2-2PKS

info

0.1875

0.50

0.1562

CCSI-R3

info

CCSI-R3-2PKS

info

0.50

0.196



CCSI-R3-2PKS

info

0.25

0.625

0.196

CCSI-R4

info

CCSI-R4-2PKS

info

0.75

0.2188

CCSI-R4A

info



0.75

0.2812



CCSI-R4A-2PKS

info

0.375

0.875

0.2188

CCSI-R6

info



0.875

0.2812



CCSI-R6-2PKS

info

0.5

1.125

0.25

CCSI-R8

info



1.125

0.3125



CCSI-R8-2PKS

info

0.625

1.375

0.2812

CCSI-R10

info



1.375

0.3438



CCSI-R10-2PKS

info

0.75

1.625

0.3125

CCSI-R12

info



1.625

0.4375



CCSI-R12-2PKS

info

0.875

1.875

0.375

CCSI-R14

info



1.875

0.5



CCSI-R14-2PKS

info

1.0

2.0

0.375

CCSI-R16

info



2.0

0.5



CCSI-R16-2PKS

info

Silicon nitride ceramic bearings for shaft sizes from 0.125” up to 1.0”Imperial ceramic bearing in silicon nitride

These imperial ceramic ball bearings are manufactured from silicon nitride. Our Si3N4 bearings are available as full complement or with PEEK, PTFE or 316 stainless steel retainers. Silicon nitride bearings are very light at approximately 40% of the weight of steel bearings. They are non magnetic, non-conductive and are very corrosion resistant. Care should be taken with impact loads due to the greater brittleness of the silicon nitride. They can also withstand very high temperatures. Silicon nitride bearings can be used up to 800°C without a cage. A PEEK or PTFE cage limits the maximum temperature to 250°C. The standard radial play for these bearings is C3 but other options can be supplied. See Bearing Material in our technical section for more information or contact us.


Our imperial Si3N4 ceramic ball bearings are available in the UK as open or with PEEK seals. Some sizes are also available flanged. These bearings are generally used in specialist applications.

Silicon Nitride Ceramic Bearings - Inch

Should you choose ZrO2 or Si3N4?? See our Ceramic Bearing Comparison