R188 Ceramic Ball Bearing 1/4 x 1/2 x 3/16 Inch Bearing1/4x1/2x3/16 Ceramic Ball Bearing also known as a size R188 fidget spinner bearingR188 Ceramic Ball Bearing Hybrid Silicon  Buy R188 Ceramic Ball Bearing Hybrid Silicon Nitride Si3N4 High Speed 2 Pack on Amazon.com ✓ FREE SHIPPING on qualified orders
R188 Bearing in Ceramic Hybrid or Stainless Steel, 10-ballReplacement bearings for your R188 fidget spinners and toys. Stainless Steel or Chrome races to prevent rust Available with Si3N4 Ceramic, Stainless Steel, R188 Full Ceramic Bearing 1/4 x 1/2 x 1/8 Inch: Deep GrooveSingle row bearing for supporting radial loads; Zirconia oxide ceramic for low friction, high hardness, density, and shock tolerance, and resistance to chemicals, SKF Hybrid Ceramic Ball Bearing, Size R188 - MechforceDec 27, 2018 - R188 Hybrid Ceramic ball bearing from SKF; Replacement Bearing for all fidget spinners that uses size R188; Size R188 (0.5 in OD x 0.25 in ID R188 Hybrid Ceramic Bearings - Ortech CeramicsR188 Hybrid Ceramic Bearings (1/4″ X 1/2″ X 1/8″)  Ortech’s R188 Hybrid Ceramic Bearings can be made with chrome 52100 or stainless steel for the inside and outside race along with silicon nitride balls.  Stainless steel ball bearings, ceramic ball bearings, aqua bearings, hybrid