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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
16100 10 mm 28 mm 8 mm Open 1150 N 500 N 20 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
699 2RS 9 mm 20 mm 6 mm Sealed 524 N 216 N 27.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
699 9 mm 20 mm 6 mm Open 524 N 216 N 27.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
689 2RS 9 mm 17 mm 5 mm Sealed 282 N 134 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
689 9 mm 17 mm 4 mm Open 282 N 134 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
679 2RS 9 mm 14 mm 4.5 mm Sealed 195 N 94 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
679 9 mm 14 mm 3 mm Open 195 N 94 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
639 2RS 9 mm 30 mm 10 mm Sealed 990 N 416 N 19.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
639 9 mm 30 mm 10 mm Open 990 N 416 N 19.2 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
629 2RS 9 mm 26 mm 8 mm Sealed 970 N 396 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
609 2RS 9 mm 24 mm 7 mm Sealed 713 N 289 N 25.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
629 9 mm 26 mm 8 mm Open 970 N 396 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
609 9 mm 24 mm 7 mm Open 713 N 289 N 25.6 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
MR148 2RS 8 mm 14 mm 4 mm Sealed 174 N 77 N 30.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
MR148 8 mm 14 mm 3.5 mm Open 174 N 77 N 30.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
MR128 2RS 8 mm 12 mm 3.5 mm Sealed 116 N 55 N 32 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
MR128 8 mm 12 mm 2.5 mm Open 116 N 55 N 32 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
698 2RS 8 mm 19 mm 6 mm Sealed 476 N 184 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
698 8 mm 19 mm 6 mm Open 476 N 184 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
688 2RS 8 mm 16 mm 5 mm Sealed 266 N 118 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
688 8 mm 16 mm 4 mm Open 266 N 118 N 28.8 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
638 2RS 8 mm 28 mm 9 mm Sealed 970 N 396 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
638 8 mm 28 mm 9 mm Open 970 N 396 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
628 2RS 8 mm 24 mm 8 mm Sealed 708 N 284 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
628 8 mm 24 mm 8 mm Open 708 N 284 N 22.4 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
608 2RS 8 mm 22 mm 7 mm Sealed 700 N 276 N 27.2 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
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
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 17 mm 26 mm 7 mm Open 558 N 365 N 19 Silicon Nitride ﹣176 to 1472 °F ABEC-1 C0 Compliant Compliant
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