{"product_id":"full-ball-ceramic-bearings-zro2-zirconium-oxide-without-retainer-bore-4mm-30mm","title":"Full Ball Ceramic Bearings ZrO2 Zirconium Oxide Without Retainer Bore 4mm-30mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eFull Ball ZrO2 Ceramic Bearings Without Retainer — Maximum Load Capacity for Demanding Applications\u003c\/h2\u003e\n\u003cp\u003eEngineers and equipment builders working in corrosive, high-temperature, or electrically sensitive environments often struggle to find bearings that hold up without constant replacement. These full ball ZrO2 ceramic bearings are designed for exactly those conditions — delivering reliable radial load performance where steel bearings fail prematurely.\u003c\/p\u003e\n\u003cp\u003eEach bearing is constructed entirely from zirconium oxide (ZrO2) ceramic rolling elements with no retainer cage, allowing a full complement of balls to fill the raceway. Available bore sizes range from 4 mm to 30 mm (approximately 0.16 in to 1.18 in), with outer diameters from 7 mm to 62 mm and widths from 2 mm to 16 mm, spanning series 604 through 6906.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include laboratory centrifuges requiring non-magnetic rotating components, food-processing machinery exposed to wash-down chemicals, semiconductor handling equipment where electrical isolation is critical, and marine or outdoor mechanisms subject to moisture and salt exposure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e⚙️\u003c\/span\u003e \u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e These bearings follow standard metric bore dimensions (ID × OD × Width). Verify your housing bore and shaft diameter against the selected model before ordering. Full-complement design increases radial load capacity but limits maximum speed compared to caged variants.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Full Ball ZrO2 Ceramic Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔵\u003c\/span\u003e\u003cstrong\u003eFull Complement Ball Fill\u003c\/strong\u003e\u003cbr\u003eNo retainer cage means the raceway is packed with the maximum number of ZrO2 balls, increasing radial load capacity compared to caged designs of the same envelope size.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧪\u003c\/span\u003e\u003cstrong\u003eZirconium Oxide (ZrO2) Ceramic Material\u003c\/strong\u003e\u003cbr\u003eZrO2 offers superior resistance to acids, alkalis, and salt solutions, making these bearings suitable for chemical processing and wash-down environments where steel corrodes rapidly.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eElectrically Non-Conductive\u003c\/strong\u003e\u003cbr\u003eCeramic construction provides electrical isolation, preventing current leakage through the bearing — essential for motors, generators, and semiconductor equipment.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🌡️\u003c\/span\u003e\u003cstrong\u003eElevated Temperature Tolerance\u003c\/strong\u003e\u003cbr\u003eZrO2 retains dimensional stability at temperatures typically up to 400 °C (752 °F), outperforming standard chrome steel bearings in high-heat applications.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧲\u003c\/span\u003e\u003cstrong\u003eNon-Magnetic\u003c\/strong\u003e\u003cbr\u003eFully non-magnetic construction eliminates interference in MRI-adjacent equipment, precision instruments, and magnetically sensitive assemblies.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Size Range — Series 604 to 6906\u003c\/strong\u003e\u003cbr\u003eBore sizes from 4 mm to 30 mm (≈ 0.16–1.18 in) cover miniature to medium-duty applications. Select the exact ID × OD × Width model from the variant options above.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Full Ball ZrO2 Ceramic Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eZirconium Oxide (ZrO2) Ceramic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eFull Complement Deep Groove Ball Bearing (No Retainer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e3 mm – 30 mm (≈ 0.12 in – 1.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e7 mm – 62 mm (≈ 0.28 in – 2.44 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e2 mm – 16 mm (≈ 0.08 in – 0.63 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e604, 605, 606, 607, 608, 609, 624–628, 683–688, 6000–6006, 6200–6206, 6800–6806, 6900–6906\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRetainer \/ Cage\u003c\/th\u003e\n\u003ctd\u003eNone (Full Complement)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Conductivity\u003c\/th\u003e\n\u003ctd\u003eNon-conductive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMagnetic Properties\u003c\/th\u003e\n\u003ctd\u003eNon-magnetic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Operating Temperature\u003c\/th\u003e\n\u003ctd\u003eTypically up to 400 °C (752 °F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eResistant to acids, alkalis, and salt solutions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeals \/ Shields\u003c\/th\u003e\n\u003ctd\u003eOpen (no seals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the correct bearing model for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bearing model to your shaft diameter (ID), housing bore (OD), and available axial space (Width). The model number in the variant selector is formatted as ID × OD × Width in millimeters. For example, 608 – 8×22×7 mm fits an 8 mm shaft in a 22 mm housing bore with a 7 mm width. Always measure your existing bearing or shaft before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the advantage of a full complement (no retainer) design?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eRemoving the retainer cage allows more balls to fill the raceway, which increases the bearing's radial load capacity for a given envelope size. The trade-off is a lower maximum operating speed compared to a caged bearing of the same dimensions. Full complement bearings are best suited for slow-to-moderate speed, high-load applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow does ZrO2 ceramic compare to steel in corrosive environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eZirconium oxide is chemically inert to most acids, alkalis, and salt solutions that would corrode chrome steel (52100) bearings within hours or days. ZrO2 bearings are widely used in chemical pumps, food-processing lines, and marine equipment where moisture and aggressive cleaning agents are present. They do not rust and require no protective coating.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings be used in high-temperature applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. ZrO2 ceramic maintains its dimensional stability and hardness at temperatures typically up to approximately 400 °C (752 °F), well above the limit of standard steel bearings (typically 120–150 °C for grease-lubricated steel). For sustained high-temperature use, ensure any lubricant or grease used is also rated for the target temperature range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings suitable for electrical isolation applications?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. ZrO2 ceramic is an electrical insulator, so these bearings will not conduct current between the shaft and housing. This makes them appropriate for electric motors, variable-frequency drives, and precision instruments where stray currents can cause pitting damage in steel bearings (electro-corrosion). They are also fully non-magnetic, which is important for MRI-adjacent or magnetically sensitive equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these bearings require lubrication, and what type is recommended?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eFull ball ceramic bearings can operate with reduced lubrication compared to steel bearings, but some lubrication is still recommended to minimize friction and extend service life. For most applications, a PTFE-based or ceramic-compatible grease is preferred. Avoid petroleum-based greases in chemically aggressive environments. For very high-temperature or vacuum applications, dry lubrication (e.g., MoS₂ coating) may be appropriate. Contact us to confirm the best lubrication approach for your specific conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 60xx, 62xx, 68xx, and 69xx series?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese designations follow standard metric bearing series conventions. The 60xx series (6000–6006) is a standard light series with a moderate OD-to-ID ratio. The 62xx series (6200–6206) has a larger OD for the same bore, providing higher load capacity. The 68xx series (6800–6806) is a thin-section series with a smaller OD and width, suited for space-constrained designs. The 69xx series (6900–6906) is also a thin-section series, slightly wider than 68xx. The 6xx miniature series (604–609, 624–628, 683–688) covers very small bore sizes from 3 mm to 9 mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Model (ID × OD × Width) and quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"604- 4*12*4mm \/ 1 pcs","offer_id":52410017841426,"sku":"GLFBDMHGLBZSJ057057x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"605- 5*14*5mm \/ 1 pcs","offer_id":52410017874194,"sku":"GLFBDMHGLBZSJ057058x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"606- 6*17*6mm \/ 1 pcs","offer_id":52410017906962,"sku":"GLFBDMHGLSMZC0064x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"607- 7*19*6mm \/ 1 pcs","offer_id":52410017939730,"sku":"GLFBDMHGLSMZC0065x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"608- 8*22*7mm \/ 1 pcs","offer_id":52410017972498,"sku":"GLFBDMHGLSMZC0066x1","price":18.26,"currency_code":"USD","in_stock":true},{"title":"609- 9*24*7mm \/ 1 pcs","offer_id":52410018005266,"sku":"GLFBDMHGLSMZC0067x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"624- 4*13*5mm \/ 1 pcs","offer_id":52410018038034,"sku":"GLFBDMHGLSMZC0068x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"625- 5*16*5mm \/ 1 pcs","offer_id":52410018070802,"sku":"GLFBDMHGLSMZC0069x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"626- 6*19*6mm \/ 1 pcs","offer_id":52410018103570,"sku":"GLFBDMHGLSMZC0070x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"627- 7*22*7mm \/ 1 pcs","offer_id":52410018136338,"sku":"GLFBDMHGLSMZC0071x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"628- 8*24*8mm \/ 1 pcs","offer_id":52410018169106,"sku":"GLFBDMHGLSMZC0072x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"683- 3*7*2mm \/ 1 pcs","offer_id":52410018201874,"sku":"GLFBDMHGLBZSJ057051x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"683- 3*7*3mm \/ 1 pcs","offer_id":52410018234642,"sku":"GLFBDMHGLSMZC0056x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"684- 4*9*4mm \/ 1 pcs","offer_id":52410018267410,"sku":"GLFBDMHGLBZSJ057052x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"684- 4*9*2.5mm \/ 1 pcs","offer_id":52410018300178,"sku":"GLFBDMHGLSMZC0057x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"685- 5*11*5mm \/ 1 pcs","offer_id":52410018332946,"sku":"GLFBDMHGLBZSJ057053x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"685- 5*11*3mm \/ 1 pcs","offer_id":52410018365714,"sku":"GLFBDMHGLSMZC0058x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"685- 5*11*4mm \/ 1 pcs","offer_id":52410018398482,"sku":"GLFBDMHGLSMZC0059x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"686- 6*13*5mm \/ 1 pcs","offer_id":52410018431250,"sku":"GLFBDMHGLBZSJ057054x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"686- 13*3.5mm \/ 1 pcs","offer_id":52410018464018,"sku":"GLFBDMHGLSMZC0060x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"687- 14*3.5mm \/ 1 pcs","offer_id":52410018496786,"sku":"GLFBDMHGLBZSJ057055x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"687- 7*14*5mm \/ 1 pcs","offer_id":52410018529554,"sku":"GLFBDMHGLSMZC0061x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"688- 8*16*4mm \/ 1 pcs","offer_id":52410018562322,"sku":"GLFBDMHGLSMZC0062x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"688- 8*16*5mm \/ 1 pcs","offer_id":52410018595090,"sku":"GLFBDMHGLSMZC0063x1","price":22.82,"currency_code":"USD","in_stock":true},{"title":"6000- 10*26*8mm \/ 1 pcs","offer_id":52410018627858,"sku":"GLFBDMHGLBZSJ057066x1","price":21.12,"currency_code":"USD","in_stock":true},{"title":"6001- 12*28*8mm \/ 1 pcs","offer_id":52410018660626,"sku":"GLFBDMHGLBZSJ057067x1","price":24.52,"currency_code":"USD","in_stock":true},{"title":"6002- 15*32*9mm \/ 1 pcs","offer_id":52410018693394,"sku":"GLFBDMHGLBZSJ057068x1","price":25.68,"currency_code":"USD","in_stock":true},{"title":"6003- 17*35*10mm \/ 1 pcs","offer_id":52410018726162,"sku":"GLFBDMHGLBZSJ057069x1","price":28.94,"currency_code":"USD","in_stock":true},{"title":"6004- 20*42*12mm \/ 1 pcs","offer_id":52410018758930,"sku":"GLFBDMHGLBZSJ057070x1","price":34.88,"currency_code":"USD","in_stock":true},{"title":"6005- 25*47*12mm \/ 1 pcs","offer_id":52410018791698,"sku":"GLFBDMHGLBZSJ057071x1","price":39.96,"currency_code":"USD","in_stock":true},{"title":"6006- 30*55*13mm \/ 1 pcs","offer_id":52410018824466,"sku":"GLFBDMHGLBZSJ057072x1","price":66.34,"currency_code":"USD","in_stock":true},{"title":"6200- 10*30*9mm \/ 1 pcs","offer_id":52410018857234,"sku":"GLFBDMHGLBZSJ057059x1","price":29.01,"currency_code":"USD","in_stock":true},{"title":"6201- 12*32*10mm \/ 1 pcs","offer_id":52410018890002,"sku":"GLFBDMHGLBZSJ057060x1","price":34.99,"currency_code":"USD","in_stock":true},{"title":"6202- 15*35*11mm \/ 1 pcs","offer_id":52410018922770,"sku":"GLFBDMHGLBZSJ057061x1","price":38.53,"currency_code":"USD","in_stock":true},{"title":"6203- 17*40*12mm \/ 1 pcs","offer_id":52410018955538,"sku":"GLFBDMHGLBZSJ057062x1","price":44.92,"currency_code":"USD","in_stock":true},{"title":"6204- 20*47*14mm \/ 1 pcs","offer_id":52410018988306,"sku":"GLFBDMHGLBZSJ057063x1","price":64.6,"currency_code":"USD","in_stock":true},{"title":"6205- 25*52*15mm \/ 1 pcs","offer_id":52410019021074,"sku":"GLFBDMHGLBZSJ057064x1","price":83.2,"currency_code":"USD","in_stock":true},{"title":"6206- 30*62*16mm \/ 1 pcs","offer_id":52410019053842,"sku":"GLFBDMHGLBZSJ057065x1","price":126.93,"currency_code":"USD","in_stock":true},{"title":"6800- 10*19*5mm \/ 1 pcs","offer_id":52410019086610,"sku":"GLFBDMHGLBZSJ057044x1","price":24.52,"currency_code":"USD","in_stock":true},{"title":"6801- 12*21*5mm \/ 1 pcs","offer_id":52410019119378,"sku":"GLFBDMHGLBZSJ057045x1","price":28.53,"currency_code":"USD","in_stock":true},{"title":"6802- 15*24*5mm \/ 1 pcs","offer_id":52410019152146,"sku":"GLFBDMHGLBZSJ057046x1","price":32.5,"currency_code":"USD","in_stock":true},{"title":"6803- 17*26*5mm \/ 1 pcs","offer_id":52410019184914,"sku":"GLFBDMHGLBZSJ057047x1","price":37.07,"currency_code":"USD","in_stock":true},{"title":"6804- 20*32*7mm \/ 1 pcs","offer_id":52410019217682,"sku":"GLFBDMHGLBZSJ057048x1","price":39.93,"currency_code":"USD","in_stock":true},{"title":"6805- 25*37*7mm \/ 1 pcs","offer_id":52410019250450,"sku":"GLFBDMHGLBZSJ057049x1","price":39.93,"currency_code":"USD","in_stock":true},{"title":"6806- 30*42*7mm \/ 1 pcs","offer_id":52410019283218,"sku":"GLFBDMHGLBZSJ057050x1","price":48.48,"currency_code":"USD","in_stock":true},{"title":"6900- 10*22*6mm \/ 1 pcs","offer_id":52410019315986,"sku":"GLFBDMHGLBZSJ057037x1","price":28.53,"currency_code":"USD","in_stock":true},{"title":"6901- 12*24*6mm \/ 1 pcs","offer_id":52410019348754,"sku":"GLFBDMHGLBZSJ057038x1","price":28.53,"currency_code":"USD","in_stock":true},{"title":"6902- 15*28*7mm \/ 1 pcs","offer_id":52410019381522,"sku":"GLFBDMHGLBZSJ057039x1","price":31.36,"currency_code":"USD","in_stock":true},{"title":"6903- 17*30*7mm \/ 1 pcs","offer_id":52410019414290,"sku":"GLFBDMHGLBZSJ057040x1","price":34.22,"currency_code":"USD","in_stock":true},{"title":"6904- 20*37*9mm \/ 1 pcs","offer_id":52410019447058,"sku":"GLFBDMHGLBZSJ057041x1","price":37.07,"currency_code":"USD","in_stock":true},{"title":"6905- 25*42*9mm \/ 1 pcs","offer_id":52410019479826,"sku":"GLFBDMHGLBZSJ057042x1","price":42.77,"currency_code":"USD","in_stock":true},{"title":"6906- 30*47*9mm \/ 1 pcs","offer_id":52410019512594,"sku":"GLFBDMHGLBZSJ057043x1","price":45.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture_6_of_7_57e2ba05-8226-43b9-99af-978d897b719e.jpg?v=1782368816","url":"https:\/\/homediyer.com\/products\/full-ball-ceramic-bearings-zro2-zirconium-oxide-without-retainer-bore-4mm-30mm","provider":"HomeDIYer","version":"1.0","type":"link"}