{"title":"Outer Diameter - 31mm","description":"\u003ch1\u003e31mm\u003c\/h1\u003e\u003ch2\u003e31mm Online shopping\u003c\/h2\u003e","products":[{"product_id":"mr3121-2rs-full-complement-fu","title":"MR3121-2RS Full Complement Full Ceramic Bearing 21.5x31x7 ZrO2 Bearing","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003eMR3121-2RS Full Complement Ceramic Sealed Ball Bearing\u003cbr\u003e Zirconia\u003cbr\u003e 21.5mm x 31mm x 7mm\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003eMR3121-2RS Full Complement Ceramic sealed Ball Bearing, measures an inner diameter of 21.5mm, outer diameter is 31mm and the width is 7mm, Bearing is made from ZrO2 Ceramic Zirconium oxide.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eMR3121-2RS Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eFull Complement Ceramic Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCage: No Cage\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eBalls: ZRO2 Ceramic\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eClosures: PTFE covers\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eInner\/outer races:ZRO2 Ceramic\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 21.5 mm x 31mm x 7mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eID (inner diameter)\/Bore: 21.5mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eOD (outer diameter): 31mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eWidth: 7mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSize:21.5 x 31 x 7 mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity:One Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003ccenter\u003e\u003c\/center\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50572923896129,"sku":"Kit8448","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/mr3121-2rs-full-complement-ceramic-bearing-21-5x31x7-zro2-bearings-vxb-ball-bearings.jpg?v=1751314275"},{"product_id":"full-ceramic-sealed-bearing-2","title":"Full Ceramic Sealed Bearing 22x31x7 ZrO2","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"middle\"\u003e\u003ctd align=\"middle\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e22x31x7 Full Ceramic Sealed Ball Bearing\u003cbr\u003eZirconia\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003cfont face=\"tahoma\"\u003e\u003cp align=\"justify\"\u003e 22x31x7 Full Ceramic sealed Ball Bearings, measures an inner diameter of 22mm, outer diameter is 31mm and the width is 7mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from ZrO2 Ceramic Zirconium oxide. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e22x31x7 Ball Bearing\u003c\/li\u003e\n\u003cli\u003eFull Ceramic Ball Bearing\u003c\/li\u003e\n\u003cli\u003eCage Material: PTFE (Polytetrafluoroethylene)\u003c\/li\u003e\n\u003cli\u003eBalls: ZRO2 Ceramic\u003c\/li\u003e\n\u003cli\u003eClosures: PTFE covers\u003c\/li\u003e\n\u003cli\u003eInner\/outer races:ZRO2 Ceramic\u003c\/li\u003e\n\u003cli\u003eDimensions: 22mm x 31mm x 7mm\/Metric\u003c\/li\u003e\n\u003cli\u003eID (inner diameter)\/Bore: 22mm\u003c\/li\u003e\n\u003cli\u003eOD (outer diameter): 31mm\u003c\/li\u003e\n\u003cli\u003eWidth: 7mm\u003c\/li\u003e\n\u003cli\u003eSize: 22 x 31 x 7 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003c!--Beginning FULL CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003csmall\u003e\u003ci\u003eVXB Category: Full ceramic bearings\u003c\/i\u003e\u003c\/small\u003e\u003cbr\u003e\u003c!--Ending FULL CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573037076801,"sku":"Kit11287","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/1_9173a0ca-c097-4d68-a4fe-2727079ad8f2.jpg?v=1751314297"},{"product_id":"smr31215-2rs-ceramic-bearing","title":"SMR3121.5-2RS Ceramic Bearing 21.5x31x7 Si3N4 PTFE ABEC-5 Bearing","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e21.5 x 31 x 7 Stainless Steel Premium ABEC-5 Ball Bearing\u003cbr\u003e Silicon Nitride Ceramic Balls\u003cbr\u003e 2 PTFE Seals\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd valign=\"center\" align=\"center\" width=\"15%\"\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\" width=\"75%\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003e21.5 x 31 x 7 Stainless Steel Premium ABEC-5 Ball Bearing, Silicon Nitride ceramic balls, inner diameter is 21.5mm, outer diameter is 31mm and width is 7mm.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003e21.5 x 31 x 7 Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDeep Groove Radial Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eClosures: PTFE Sealed\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuality: Premium ABEC-5\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eMaterial: Stainless Steel\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eBalls: Silicon Nitride Ceramic (Si3N4)\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eLubrication: Self Lubricated (Grease SRL) Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 21.5mm x 31mm x 7mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eID (inner diameter)\/Bore: 21.5mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eOD (outer diameter): 31mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eWidth: 7mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: 1 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003c!--Beginning HYBRID CERAMIC BEARINGS--\u003e\u003cp\u003e\u003cbr\u003e\u003csmall\u003e\u003cem\u003eVXB Category: Hybrid ceramic bearings\u003c\/em\u003e\u003c\/small\u003e\u003cbr\u003e\u003c!--Ending HYBRID CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cbr\u003e\u003ch3\u003e\u003c\/h3\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573045006657,"sku":"Kit11865","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/smr3121-5-2rs-ceramic-bearing-21-5x31x7-si3n4-ptfe-abec-5-bearings-vxb-ball-bearings.jpg?v=1751314299"},{"product_id":"smr31215-ceramic-bearing-215m","title":"SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearing","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"Center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003eSMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing\u003cbr\u003eSilicon Nitride Ceramic Balls\u003cbr\u003e 21.5 x 31 x 7 mm\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd valign=\"center\" align=\"Center\" width=\"\"\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd valign=\"center\" align=\"Center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd align=\"left\" valign=\"top\" width=\"\"\u003e\u003cfont face=\"tahoma\"\u003e\u003cp align=\"justify\"\u003eSMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing, bearing is Silicon Nitride ceramic ball.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSMR3121.5 Ball Bearing\u003c\/li\u003e\n\u003cli\u003eQuality: Premium ABEC-5\u003c\/li\u003e\n\u003cli\u003eClosures: Open\u003c\/li\u003e\n\u003cli\u003eMaterial: Stainless Steel \u003c\/li\u003e\n\u003cli\u003eBalls: Silicon Nitride Ceramic (Si3N4) \u003c\/li\u003e\n\u003cli\u003eDimensions: 21.5mm x 31mm x 7mm\/Metric\u003c\/li\u003e\n\u003cli\u003eID (inner diameter)\/Bore: 21.5mm\u003c\/li\u003e\n\u003cli\u003eOD (outer diameter): 31mm\u003c\/li\u003e\n\u003cli\u003eWidth: 7mm\u003c\/li\u003e\n\u003cli\u003eDimensions: 21.5 x 31 x 7 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Bearing \u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003c!--Beginning HYBRID CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003csmall\u003e\u003ci\u003eVXB Category: Hybrid ceramic bearings\u003c\/i\u003e\u003c\/small\u003e\u003cbr\u003e\u003c!--Ending HYBRID CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ch3\u003e\u003c\/h3\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573082132801,"sku":"Kit13043","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/smr3121-5-ceramic-bearing-21-5mm-metric-sealed-abec-5-bearings-vxb-ball-bearings-1.jpg?v=1751314310"},{"product_id":"173110-2rs-bearing-17x31x10mm","title":"173110-2RS Bearing 17x31x10mm Sealed","description":"\u003cp\u003e173110-2RS Sealed Ball Bearing\u003cbr\u003e✔️ Deep Groove - 17mm x 31mm x 10mm\u003c\/p\u003e\n\u003cp\u003eThe 173110-2RS is a deep groove ball bearing built from durable 52100 chrome steel and protected with two blue rubber seals. It’s pre-lubed and ready to drop into motors, pulleys, tools, or gear-driven assemblies that need smooth, sealed performance in compact form.\u003c\/p\u003e\n\u003cp\u003e✅ Pack size: 1 bearing\u003cbr\u003e✅ Inner diameter: 17mm\u003cbr\u003e✅ Outer diameter: 31mm\u003cbr\u003e✅ Width: 10mm\u003cbr\u003e✅ Material: 52100 chrome steel\u003cbr\u003e✅ Closures: Double blue rubber seals\u003cbr\u003e✅ Lubrication: Factory pre-greased\u003cbr\u003e✅ Bearing type: Deep groove radial\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573345521985,"sku":"Kit18509","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/1_2093926d-d783-4360-b3f5-5507ccbbe7a3.jpg?v=1751314351"},{"product_id":"163110-2rs-bearing-16x31x10mm","title":"163110-2RS Bearing 16x31x10mm Sealed 16mm x 31mm x 10mm","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"Center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e163110-2RS Sealed Ball Bearing\u003cbr\u003e16mm x 31mm x 10mm\u003cbr\u003eOne Bearing\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"8\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003ctable cellspacing=\"2\" cellpadding=\"8\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd valign=\"center\" align=\"center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003cfont face=\"tahoma\"\u003e\u003cp align=\"justify\"\u003e163110-2RS Sealed Ball Bearing, Bearing inner diameter is 16mm, Bearing outer diameter is 31mm and Bearing width is 10mm, made from durable 52100 alloy steel, commonly known as chrome steel, each bearing has 2 Blue Rubber Seals to protect the bearing from dust or any possible contamination, plus it’s pre-lubricated with grease so it’s ready to roll right away.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e163110-2RS Ball Bearing\u003c\/li\u003e\n\u003cli\u003edeep Groove Ball Bearing\u003c\/li\u003e\n\u003cli\u003eSize: 16mm x 31mm x 10mm\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 16mm\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 31mm\u003c\/li\u003e\n\u003cli\u003eWidth: 10mm\u003c\/li\u003e\n\u003cli\u003eClosures: Rubber Seals\u003c\/li\u003e\n\u003cli\u003eLubrication: Pre-lubricated with grease\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573345456449,"sku":"Kit18510","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/163110-2rs-bearing-16x31x10-sealed-16mm-x-31mm-x-10mm-vxb-ball-bearings-1.jpg?v=1751314352"},{"product_id":"215317-2rs-sealed-bearing-215","title":"215317-2RS Sealed Bearing 21.5x31x7 Metric","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e215317-2RS Sealed Ball Bearing\u003cbr\u003e21.5mm x 31mm x 7mm\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" width=\"85%\" bg border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\" valign=\"center\"\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd valign=\"center\" align=\"Center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003cfont face=\"Tahoma\"\u003e\u003cp align=\"justify\"\u003e215317-2RS Sealed Ball Bearing, bearing is made from Chrome Steel with chrome steel balls and steel cage, 215317-2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, bearing is sealed and self lubricated, the quality is set to EMQ (electric motor quality) to ensure high speed, 215317-2RS bearing is lubricated with grease.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e215317-2RS Ball Bearing\u003c\/li\u003e\n\u003cli\u003eDeep Groove Radial Ball Bearing\u003c\/li\u003e\n\u003cli\u003eCage: Steel\u003c\/li\u003e\n\u003cli\u003eMaterial: Chrome Steel\u003c\/li\u003e\n\u003cli\u003eBalls: Chrome Steel\u003c\/li\u003e\n\u003cli\u003eRadial Clearance: C0\u003c\/li\u003e\n\u003cli\u003eQuality: Electric motor quality\u003c\/li\u003e\n\u003cli\u003eLubrication: Pre-lubricated with grease Bearing\u003c\/li\u003e\n\u003cli\u003eClosures: Double sealed with rubber seals RS\/RS1\/2RS1\u003c\/li\u003e\n\u003cli\u003eSize: 21.5mm x 31mm x 7mm\u003c\/li\u003e\n\u003cli\u003eBearing Inner Diameter: 21.5mm\u003c\/li\u003e\n\u003cli\u003eBearing Outer Diameter: 31mm\u003c\/li\u003e\n\u003cli\u003eBearing Width: 7mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573442220353,"sku":"Kit21084","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/215317-2rs-sealed-bearing-21-5x31x7-metric-vxb-ball-bearings-1.jpg?v=1751314376"},{"product_id":"mr2231-2rs-full-complement-fu","title":"MR2231-2RS Full Complement Full Ceramic ZrO2 Sealed Bearing","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg border=\"1\"\u003e\u003ctbody\u003e\u003ctr align=\"middle\"\u003e\u003ctd align=\"middle\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e22x31x7 Full Complement Ceramic Sealed Ball Bearing\u003cbr\u003e Zirconia\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\n\u003cp align=\"justify\"\u003e\u003cfont face=\"tahoma\"\u003e22x31x7 Full Complement Ceramic sealed Ball Bearings, measures an inner diameter of 22mm, outer diameter is 31mm and the width is 7mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from ZrO2 Ceramic Zirconium oxide.\u003c\/font\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003e22x31x7 Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eFull Complement Ceramic Ball Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eCage Material: PTFE (Polytetrafluoroethylene)\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eBalls: ZRO2 Ceramic\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eClosures: PTFE covers\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eInner\/outer races:ZRO2 Ceramic\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eDimensions: 22mm x 31mm x 7mm\/Metric\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eID (inner diameter)\/Bore: 22mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eOD (outer diameter): 31mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\" color=\"#000000\"\u003eWidth: 7mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eSize: 22 x 31 x 7 mm\u003c\/font\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cfont face=\"tahoma\"\u003eQuantity: 1 Bearing\u003c\/font\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003c!--Beginning FULL CERAMIC BEARINGS--\u003e\u003cp\u003e\u003cbr\u003e\u003csmall\u003e\u003cem\u003eVXB Category: Full ceramic bearings\u003c\/em\u003e\u003c\/small\u003e\u003cbr\u003e\u003c!--Ending FULL CERAMIC BEARINGS--\u003e\u003c\/p\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573624705345,"sku":"FULL MR2231-2RS","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/1_9e48352b-9ef8-4de5-b376-264c28898d21.jpg?v=1751314386"},{"product_id":"mr31215-full-ceramic-bearing","title":"MR3121.5 Full Ceramic Bearing 21.5x31x7mm ID Bore 21.5mm","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"Center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e6804 Modified Ball Bearing\u003cbr\u003eFull Ceramic\u003cbr\u003e21.5mm x 31mm x 7mm\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" width=\"80%\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\" valign=\"center\"\u003e\u003ctable cellspacing=\"3\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"middle\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003cfont face=\"tahoma\"\u003e\u003cp align=\"justify\"\u003e Full Ceramic Ball Bearing, measures an inner diameter of 21.5mm, outer diameter is 31mm and the width is 7mm, a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from Ceramic. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6804 Modified Ball bearing\u003c\/li\u003e\n\u003cli\u003eFull Ceramic Ball Bearing\u003c\/li\u003e\n\u003cli\u003eBalls: Made from Zirconia Ceramic (ZrO₂)\u003c\/li\u003e\n\u003cli\u003eCage Material: PTFE (Polytetrafluoroethylene)\u003c\/li\u003e\n\u003cli\u003eRaces Material: Zirconia (ZrO₂) Ceramic \u003c\/li\u003e\n\u003cli\u003eDimensions: 21.5mm x 31mm x 7mm\/Metric\u003c\/li\u003e\n\u003cli\u003eID (inner diameter)\/Bore: 21.5mm\u003c\/li\u003e\n\u003cli\u003eOD (outer diameter): 31mm\u003c\/li\u003e\n\u003cli\u003eWidth: 7mm\u003c\/li\u003e\n\u003cli\u003eSize: 21.5 x 31 x 7 mm\u003c\/li\u003e\n\u003cli\u003eQuantity: One ball bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003c!--Beginning FULL CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003csmall\u003e\u003ci\u003eVXB Category: Full ceramic bearings\u003c\/i\u003e\u003c\/small\u003e\u003cbr\u003e\u003c!--Ending FULL CERAMIC BEARINGS--\u003e\u003cbr\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50573788512577,"sku":"Kit7757","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/mr3121-5-full-ceramic-bearing-21-5x31x7-vxb-ball-bearings.jpg?v=1751314421"},{"product_id":"19x31x7-non-standard-ball-bea","title":"19x31x7 Non-Standard Ball Bearing 19mm x 31mm x 7mm","description":"\u003ccenter\u003e\n\u003ctable cellspacing=\"2\" cellpadding=\"10\" bg=\"\" border=\"1\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd align=\"Center\"\u003e\u003cfont face=\"Tahoma\" size=\"+2\"\u003e19317 Special Non-standard Ball Bearing \u003cbr\u003e19mm x 31mm x 7mm\u003c\/font\u003e\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" bg=\"\" border=\"0\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd align=\"center\" valign=\"center\"\u003e\u003ctable cellspacing=\"2\" cellpadding=\"5\" border=\"0\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd valign=\"center\" align=\"center\"\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\n\u003ctd valign=\"top\" align=\"left\"\u003e\u003cfont face=\"tahoma\"\u003e\u003cp align=\"justify\"\u003e Inner Diameter 19 mm Outer Diameter 31 mm Thickness 7 mm Bearing. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e19mm x 31mm x 7mm Flanged Bearing\u003c\/li\u003e\n\u003cli\u003eSpecial size Bearings\u003c\/li\u003e\n\u003cli\u003eInner Diameter: 19 mm\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 31 mm\u003c\/li\u003e\n\u003cli\u003eThickness: 7 mm\u003c\/li\u003e\n\u003cli\u003eClosures: Double sealed with rubber seals\u003c\/li\u003e\n\u003cli\u003eFlange Diameter: 37mm\u003c\/li\u003e\n\u003cli\u003eQuantity: 1 Bearing\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/font\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/center\u003e\u003cbr\u003e\u003cbr\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":50578669371713,"sku":"19X31X7-BEARING","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/0938\/5537\/files\/19x31x7-non-standard-ball-bearing-19mm-x-31mm-x-7mm-vxb-ball-bearings-1-32680607613163.jpg?v=1751314885"}],"url":"https:\/\/thinsectionballbearings.com\/es\/collections\/outer-diameter-31mm.oembed","provider":"Thin Section Ball Bearings","version":"1.0","type":"link"}