{"product_id":"deep-groove-ball-bearings-6300zz-6320zz-bearing-steel","title":"Deep Groove Ball Bearings 6300 ZZ - 6320 ZZ Bearing Steel I.D 10mm 12mm - 100mm","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eDeep Groove Ball Bearings 6300ZZ–6320ZZ — Reliable Radial Support for Motors, Conveyors \u0026amp; Industrial Machinery\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or undersized bearing causes vibration, overheating, or unexpected downtime in rotating equipment, finding an exact-fit replacement quickly is critical. These deep groove ball bearings are designed for engineers, maintenance technicians, and serious DIYers who need a dimensionally accurate, drop-in solution across a wide range of shaft sizes.\u003c\/p\u003e\n\u003cp\u003eEach bearing is manufactured from bearing-grade steel with a ZZ (double metal shield) configuration. The series spans 21 models — from the compact 6300ZZ (10 × 35 × 11 mm \/ 0.39\" × 1.38\" × 0.43\") up to the heavy-duty 6320ZZ (100 × 215 × 47 mm \/ 3.94\" × 8.46\" × 1.85\") — covering inner diameters from 10 mm to 100 mm and outer diameters from 35 mm to 215 mm.\u003c\/p\u003e\n\u003cp\u003eTypical applications include electric motor shaft support, conveyor roller assemblies, agricultural equipment gearboxes, pump and compressor housings, and general-purpose industrial machinery where consistent radial load capacity and low-friction rotation are required.\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:\u003c\/strong\u003e Fits standard 6300–6320 series bearing seats. Verify your shaft inner diameter (ID) and housing outer diameter (OD) before ordering. Dimensions listed in each variant option (ID × OD × Thickness).\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eBearing Steel Construction\u003c\/strong\u003e\u003cbr\u003eManufactured from bearing-grade steel for consistent hardness, fatigue resistance, and dimensional stability under continuous radial loads.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eZZ Double Metal Shield\u003c\/strong\u003e\u003cbr\u003eBoth sides sealed with pressed steel shields to block contaminants and retain grease — no additional sealing required for most dry or lightly contaminated environments.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003e21 Size Options (6300ZZ–6320ZZ)\u003c\/strong\u003e\u003cbr\u003eInner diameters from 10 mm to 100 mm; outer diameters from 35 mm to 215 mm. Each variant is labeled with exact ID × OD × Thickness for straightforward selection.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eLow-Friction Ball Raceway\u003c\/strong\u003e\u003cbr\u003eDeep groove raceway geometry supports both radial and moderate axial loads, enabling smooth, low-noise rotation at a wide range of operating speeds.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eDrop-In Replacement Fit\u003c\/strong\u003e\u003cbr\u003eDimensioned to ISO\/ABEC standards for the 6300 series, making these direct replacements for OEM bearings in motors, pumps, conveyors, and gearboxes.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\u003cstrong\u003eSold Individually (1 PCS)\u003c\/strong\u003e\u003cbr\u003eEach unit is sold as a single bearing, allowing you to order exactly the quantity needed for your repair or build without overstocking.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Deep Groove Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e6300ZZ – 6320ZZ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eDeep Groove Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeal Type\u003c\/th\u003e\n\u003ctd\u003eZZ (Double Metal Shield, both sides)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBearing Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID) Range\u003c\/th\u003e\n\u003ctd\u003e10 mm – 100 mm (0.39\" – 3.94\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD) Range\u003c\/th\u003e\n\u003ctd\u003e35 mm – 215 mm (1.38\" – 8.46\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e11 mm – 47 mm (0.43\" – 1.85\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eRadial (with moderate axial capacity)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003ePre-greased (grease retained by ZZ shields)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO 15 \/ 6300 Series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 PCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eExact Dimensions\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 size for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bearing's inner diameter (ID) to your shaft diameter and the outer diameter (OD) to your housing bore. Each variant option lists the exact ID × OD × Thickness in millimeters. Measure your existing bearing with calipers or check your equipment's service manual for the bearing designation (e.g., 6305ZZ).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does \"ZZ\" mean on a bearing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eZZ indicates that both sides of the bearing are fitted with pressed steel shields. These shields block dust and debris from entering the raceway and help retain the factory-applied grease. They are non-contact shields, so friction is lower than rubber-sealed (2RS) bearings, making ZZ bearings well-suited for higher-speed applications in cleaner environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings compatible with standard 6300-series housings and shafts?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These bearings are dimensioned to ISO 15 \/ 6300 series standards, which means they are interchangeable with OEM and aftermarket 6300ZZ–6320ZZ bearings from other manufacturers. Always verify the ID, OD, and width against your housing and shaft tolerances before installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these bearings require additional lubrication before installation?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo additional lubrication is required for most applications. The bearings are pre-greased at the factory, and the ZZ metal shields retain that grease during operation. If your application involves extreme temperatures or heavy contamination, consult your equipment's maintenance specifications for relubrication intervals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the corrosion resistance of bearing steel ZZ bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard bearing steel offers moderate corrosion resistance suitable for dry or lightly oiled indoor environments. For applications exposed to moisture, chemicals, or outdoor conditions, consider stainless steel bearings (e.g., 6300-2RS stainless) instead. The ZZ shields provide mechanical protection but do not add significant corrosion resistance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings handle both radial and axial loads?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eDeep groove ball bearings are primarily designed for radial loads but can accommodate moderate axial (thrust) loads in both directions. For applications with significant axial loading — such as helical gearboxes or vertical shaft pumps — verify that the selected bearing size's axial load rating meets your requirements, or consider angular contact bearings for those use cases.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I know if my bearing needs to be replaced?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eCommon indicators include unusual noise (grinding, squealing, or rumbling during rotation), excessive heat at the bearing location, visible pitting or spalling on the raceway when inspected, increased vibration levels, or play in the shaft that exceeds manufacturer tolerances. Regular inspection during scheduled maintenance helps catch wear before it causes equipment failure.\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 × Thickness) above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"6300ZZ (10 x 35 x 11 mm) \/ 1 PCS","offer_id":52410125123858,"sku":"GYJLTDGZCWJ0904x1","price":2.98,"currency_code":"USD","in_stock":true},{"title":"6301ZZ (12 x 37 x 12 mm) \/ 1 PCS","offer_id":52410125156626,"sku":"GYJLTDGZCWJ0905x1","price":4.0,"currency_code":"USD","in_stock":true},{"title":"6302ZZ (15 x 42 x 13 mm) \/ 1 PCS","offer_id":52410125189394,"sku":"GYJLTDGZCWJ0906x1","price":6.19,"currency_code":"USD","in_stock":true},{"title":"6303ZZ (17 x 47 x 14 mm) \/ 1 PCS","offer_id":52410125222162,"sku":"GYJLTDGZCWJ0907x1","price":8.02,"currency_code":"USD","in_stock":true},{"title":"6304ZZ (20 x 52 x 15 mm) \/ 1 PCS","offer_id":52410125254930,"sku":"GYJLTDGZCWJ0908x1","price":10.06,"currency_code":"USD","in_stock":true},{"title":"6305ZZ (25 x 62 x 17 mm) \/ 1 PCS","offer_id":52410125287698,"sku":"GYJLTDGZCWJ0909x1","price":15.08,"currency_code":"USD","in_stock":true},{"title":"6306ZZ (30 x 72 x 19 mm) \/ 1 PCS","offer_id":52410125320466,"sku":"GYJLTDGZCWJ0910x1","price":21.41,"currency_code":"USD","in_stock":true},{"title":"6307ZZ (35 x 80 x 21 mm) \/ 1 PCS","offer_id":52410125353234,"sku":"GYJLTDGZCWJ0911x1","price":28.83,"currency_code":"USD","in_stock":true},{"title":"6308ZZ (40 x 90 x 23 mm) \/ 1 PCS","offer_id":52410125386002,"sku":"GYJLTDGZCWJ0912x1","price":31.28,"currency_code":"USD","in_stock":true},{"title":"6309ZZ (45 x 100 x 25 mm) \/ 1 PCS","offer_id":52410125418770,"sku":"GYJLTDGZCWJ0913x1","price":41.86,"currency_code":"USD","in_stock":true},{"title":"6310ZZ (50 x 110 x 27 mm) \/ 1 PCS","offer_id":52410125451538,"sku":"GYJLTDGZCWJ0914x1","price":53.9,"currency_code":"USD","in_stock":true},{"title":"6311ZZ (55 x 120 x 29 mm) \/ 1 PCS","offer_id":52410125484306,"sku":"GYJLTDGZCWJ0915x1","price":67.81,"currency_code":"USD","in_stock":true},{"title":"6312ZZ (60 x 130 x 31 mm) \/ 1 PCS","offer_id":52410125517074,"sku":"GYJLTDGZCWJ0916x1","price":83.79,"currency_code":"USD","in_stock":true},{"title":"6313ZZ (65 x 140 x 33 mm) \/ 1 PCS","offer_id":52410125549842,"sku":"GYJLTDGZCWJ0917x1","price":101.97,"currency_code":"USD","in_stock":true},{"title":"6314ZZ (70 x 150 x 35 mm) \/ 1 PCS","offer_id":52410125582610,"sku":"GYJLTDGZCWJ0918x1","price":122.52,"currency_code":"USD","in_stock":true},{"title":"6315ZZ (75 x 160 x 37 mm) \/ 1 PCS","offer_id":52410125615378,"sku":"GYJLTDGZCWJ0919x1","price":147.15,"currency_code":"USD","in_stock":true},{"title":"6316ZZ (80 x 170 x 39 mm) \/ 1 PCS","offer_id":52410125648146,"sku":"GYJLTDGZCWJ0920x1","price":174.49,"currency_code":"USD","in_stock":true},{"title":"6317ZZ (85 x 180 x 41 mm) \/ 1 PCS","offer_id":52410125680914,"sku":"GYJLTDGZCWJ0921x1","price":206.2,"currency_code":"USD","in_stock":true},{"title":"6318ZZ (90 x 190 x 43 mm) \/ 1 PCS","offer_id":52410125713682,"sku":"GYJLTDGZCWJ0922x1","price":242.5,"currency_code":"USD","in_stock":true},{"title":"6319ZZ (95 x 200 x 45 mm) \/ 1 PCS","offer_id":52410125746450,"sku":"GYJLTDGZCWJ0923x1","price":281.94,"currency_code":"USD","in_stock":true},{"title":"6320ZZ (100 x 215 x 47 mm) \/ 1 PCS","offer_id":52410125779218,"sku":"GYJLTDGZCWJ0924x1","price":332.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of26_150ca395-03e2-467e-be8d-0997d4d9d314.jpg?v=1782377234","url":"https:\/\/homediyer.com\/products\/deep-groove-ball-bearings-6300zz-6320zz-bearing-steel","provider":"HomeDIYer","version":"1.0","type":"link"}