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Silicon Nitride Ceramic Bearings Metric Size

Precision-engineered for high-speed, high-load applications with superior thermal shock resistance. Ideal for aerospace, industrial, and automotive systems requiring metric dimensions and unmatched durability.

InquiryPart NumberIDODWidthShield TypeDynamic LoadStatic LoadMax Speed(X1K rpm)Ring MaterialTemperature RangePrecisionClearanceRoHSREACH
6706 2RS 30 mm 37 mm 4 mm Sealed 285 N 237 N 4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6706 30 mm 37 mm 4 mm Open 285 N 237 N 4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6406 30 mm 90 mm 23 mm Open 10900 N 5900 N 6.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63806 2RS 30 mm 42 mm 10 mm Sealed 1134 N 850 N 12 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63806 30 mm 42 mm 10 mm Open 1134 N 850 N 12 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
62304 2RS 20 mm 52 mm 21 mm Sealed 3975 N 1950 N 13.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63004 2RS 20 mm 42 mm 16 mm Sealed 2350 N 1250 N 16 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63804 2RS 20 mm 32 mm 10 mm Sealed 1005 N 615 N 17 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63804 20 mm 32 mm 10 mm Open 1005 N 615 N 17 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6304 2RS 20 mm 52 mm 15 mm Sealed 3975 N 1962 N 11.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6304 20 mm 52 mm 15 mm Open 3975 N 1962 N 11.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
62204 2RS 20 mm 47 mm 18 mm Sealed 3175 N 1650 N 14.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6204 2RS 20 mm 47 mm 14 mm Sealed 3200 N 1662 N 12 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6204 20 mm 47 mm 14 mm Open 3200 N 1662 N 12 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6004 2RS 20 mm 42 mm 12 mm Sealed 2350 N 1262 N 13.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6004 20 mm 42 mm 12 mm Open 2350 N 1262 N 13.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
16004 20 mm 42 mm 8 mm Open 1575 N 950 N 10.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
ET2418 18 mm 24 mm 4 mm Open - - - Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6903 2RS 17 mm 30 mm 7 mm Sealed 1148 N 640 N 18 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6903 17 mm 30 mm 7 mm Open 1148 N 640 N 18 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6803 2RS 17 mm 26 mm 5 mm Sealed 558 N 365 N 19 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6803 17 mm 26 mm 5 mm Open 558 N 365 N 19 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6703 2RS 17 mm 23 mm 4 mm Sealed 250 N 164 N 8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6703 17 mm 23 mm 4 mm Open 250 N 164 N 8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6403 17 mm 62 mm 17 mm Open 5725 N 2700 N 9.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63803 2RS 17 mm 26 mm 7 mm Sealed 558 N 365 N 19 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63803 17 mm 26 mm 7 mm Open 558 N 365 N 19 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
6303 2RS 17 mm 47 mm 14 mm Sealed 3400 N 1662 N 12 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
62303 2RS 17 mm 47 mm 19 mm Sealed 3375 N 1650 N 14.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
63003 2RS 17 mm 35 mm 14 mm Sealed 1500 N 825 N 18.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
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