{"product_id":"nsk-zz-cm-series-ball-bearings-6000-6310-choose-size","title":"6000 - 6310 ZZ, CM Series Metal Sealed Ball Bearings- Genuine NSK - Choose Size","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eNSK ZZ \u0026amp; CM Series Metal Sealed Ball Bearings — Precision Fit for Every Shaft\u003c\/h2\u003e\n\u003cp\u003eWhen a worn or undersized bearing causes vibration, heat build-up, or premature shaft failure, engineers and DIY machinists need a drop-in replacement they can trust. These genuine NSK ZZ and CM series deep-groove ball bearings are designed for builders, repair technicians, and hobbyists who refuse to compromise on dimensional accuracy or load capacity.\u003c\/p\u003e\n\u003cp\u003eEach bearing is manufactured to NSK's deep-groove ball bearing standard, featuring a steel inner ring, steel outer ring, and a full complement of precision-ground steel balls retained between two metal shields (ZZ designation). The CM suffix denotes a standard internal clearance class. Available sizes span inner diameters from 10 mm (0.394 in) to 50 mm (1.969 in), outer diameters from 26 mm (1.024 in) to 110 mm (4.331 in), and widths from 8 mm (0.315 in) to 27 mm (1.063 in), covering the 6000, 6200, and 6300 series families.\u003c\/p\u003e\n\u003cp\u003eTypical applications include electric motor shaft replacement bearings, skateboard and longboard wheel bearing upgrades, CNC spindle and router bearing swaps, bicycle bottom bracket and hub rebuilds, and small appliance or power tool bearing repairs — all scenarios where an ISO-standard deep-groove ball bearing with metal shields is the specified solution.\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 any application specifying an ISO 6000, 6200, or 6300 series deep-groove ball bearing with ZZ (metal-shielded) designation and CM (standard) internal clearance. Verify your shaft I.D., housing O.D., and width before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These NSK ZZ CM Series Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cstrong\u003eGenuine NSK Manufacture\u003c\/strong\u003e — Each bearing is produced under NSK's quality management system, ensuring dimensional tolerances, raceway geometry, and ball roundness meet the published specification for the bearing number selected.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eDual Metal Shields (ZZ)\u003c\/strong\u003e — Two pressed-steel shields on both sides of the bearing retain factory-applied grease and block coarse contaminants, extending service life in dusty or lightly moist environments without the drag of a contact rubber seal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Size Range — 6000 to 6310\u003c\/strong\u003e — Covers three series (60xx, 62xx, 63xx) with bore sizes from 10 mm to 50 mm, letting you source the exact ISO bearing number your application calls for in a single listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003eCM Internal Clearance\u003c\/strong\u003e — Standard (Normal\/CN) internal clearance class suits the majority of general-purpose radial and combined-load applications, including motors, fans, pumps, and light machinery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\u003cstrong\u003eLow Noise, Smooth Operation\u003c\/strong\u003e — Precision-ground raceways and a matched ball set deliver consistent, low-vibration rotation — important for spindle applications, power tools, and any build where audible noise is a quality indicator.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eDirect Drop-In Replacement\u003c\/strong\u003e — ISO-standardized outer dimensions mean these bearings interchange directly with any other manufacturer's equivalent bearing number (6000ZZ, 6200ZZ, 6300ZZ, etc.), simplifying sourcing for repair and maintenance work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — NSK Deep-Groove Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eNSK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e6000, 6200, 6300 (ZZ, CM)\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\u003eShield Type\u003c\/th\u003e\n\u003ctd\u003eDouble Metal Shield (ZZ)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInternal Clearance\u003c\/th\u003e\n\u003ctd\u003eCM (Standard \/ Normal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (I.D.)\u003c\/th\u003e\n\u003ctd\u003eSee variant options (10 mm – 50 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (O.D.)\u003c\/th\u003e\n\u003ctd\u003eSee variant options (26 mm – 110 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWidth (Thickness)\u003c\/th\u003e\n\u003ctd\u003eSee variant options (8 mm – 27 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial — Rings \u0026amp; Balls\u003c\/th\u003e\n\u003ctd\u003eBearing steel (chrome steel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial — Shields\u003c\/th\u003e\n\u003ctd\u003ePressed steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eFactory-applied grease (sealed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 PCS (per variant selected)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO 15 \/ JIS B 1521\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?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bearing number to your application's specification. The variant label shows the bearing number (e.g., 6205 - ZZCM) alongside the dimensions in the format I.D × O.D × Width (mm). Measure your shaft diameter for the I.D. and your housing bore for the O.D. If you only have the old bearing number stamped on the ring, select the matching number from the Bearing No. dropdown.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 6000, 6200, and 6300 series?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAll three are deep-groove ball bearings with the same bore diameter for a given number suffix, but they differ in outer diameter and width. The 6300 series has the largest cross-section (heaviest load capacity), the 6200 series is mid-range, and the 6000 series has the smallest cross-section. Always match the series to your housing dimensions, not just the bore.\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 the bearing has two metal (steel) shields, one on each side. The shields retain the factory grease and keep out coarse particles. Unlike rubber contact seals (2RS), metal shields do not touch the inner ring, so they produce slightly less friction — making ZZ bearings a good choice for higher-speed applications where a fully sealed bearing is not required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat does CM mean, and does it affect compatibility?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eCM is NSK's designation for standard (Normal\/CN) internal radial clearance. It is the most common clearance class and is compatible with the vast majority of general-purpose applications including motors, fans, conveyors, and hand tools. If your application specifically requires C3 (greater clearance) or C2 (tighter clearance), you would need a different variant.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eStandard ZZ bearings use chrome steel rings and balls, which offer good resistance to normal atmospheric conditions but are not rated for continuous water immersion or highly corrosive environments. The metal shields provide a barrier against light moisture and dust. For wet or marine environments, a stainless-steel bearing would be more appropriate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these bearings as a direct replacement for other brands?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. Deep-groove ball bearings are manufactured to ISO dimensional standards, so an NSK 6205 ZZCM is dimensionally interchangeable with a SKF 6205-2Z, FAG 6205-2Z, or any other brand's equivalent bearing number. The outer dimensions (I.D., O.D., width) will be identical; only internal design details and tolerances may vary slightly between manufacturers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo I need to add grease before installing?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. ZZ-shielded bearings come pre-greased from the factory and are ready to install. Do not wash out the factory grease. If the bearing will operate at extreme temperatures or in a heavily contaminated environment, consult NSK's application guidelines for re-lubrication intervals.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum speed rating for these bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSpeed ratings vary by bearing number and size. Smaller bearings (e.g., 6000, 6200) typically support higher RPM than larger ones (e.g., 6308, 6310). Refer to the NSK bearing catalog for the specific grease speed limit (rpm) of your selected bearing number, or contact us to confirm for your application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Bearing No. and Size above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"NSK \/ 6000 - ZZCM \/ 10x26x8 mm \u0026 1PCS","offer_id":52410772979986,"sku":"GYJLTSHXJZC6101x1","price":5.97,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6001 - ZZCM \/ 12x28x8 mm \u0026 1PCS","offer_id":52410773012754,"sku":"GYJLTSHXJZC6102x1","price":7.71,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6002 - ZZCM \/ 15x32x9 mm \u0026 1PCS","offer_id":52410773045522,"sku":"GYJLTSHXJZC6103x1","price":8.81,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6003 - ZZCM \/ 17x35x10 mm \u0026 1PCS","offer_id":52410773078290,"sku":"GYJLTSHXJZC6104x1","price":9.41,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6004 - ZZCM \/ 20x42x12 mm \u0026 1PCS","offer_id":52410773111058,"sku":"GYJLTSHXJZC6105x1","price":12.55,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6005 - ZZCM \/ 25x47x12 mm \u0026 1PCS","offer_id":52410773143826,"sku":"GYJLTSHXJZC6106x1","price":14.2,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6006 - ZZCM \/ 30x55x13 mm \u0026 1PCS","offer_id":52410773176594,"sku":"GYJLTSHXJZC6107x1","price":16.89,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6007 - ZZCM \/ 35x62x14 mm \u0026 1PCS","offer_id":52410773209362,"sku":"GYJLTSHXJZC6108x1","price":26.56,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6008 - ZZCM \/ 40x68x15 mm \u0026 1PCS","offer_id":52410773242130,"sku":"GYJLTSHXJZC6109x1","price":29.91,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6009 - ZZCM \/ 45x75x16 mm \u0026 1PCS","offer_id":52410773274898,"sku":"GYJLTSHXJZC6110x1","price":37.33,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6010 - ZZCM \/ 50x80x16 mm \u0026 1PCS","offer_id":52410773307666,"sku":"GYJLTSHXJZC6111x1","price":47.41,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6200 - ZZCM \/ 10x30x9 mm \u0026 1PCS","offer_id":52410773340434,"sku":"GYJLTSHXJZC6123x1","price":7.62,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6201 - ZZCM \/ 12x32x10 mm \u0026 1PCS","offer_id":52410773373202,"sku":"GYJLTSHXJZC6124x1","price":8.16,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6202 - ZZCM \/ 15x35x11 mm \u0026 1PCS","offer_id":52410773405970,"sku":"GYJLTSHXJZC6125x1","price":9.11,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6203 - ZZCM \/ 17x40x12 mm \u0026 1PCS","offer_id":52410773438738,"sku":"GYJLTSHXJZC6126x1","price":11.21,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6204 - ZZCM \/ 20x47x14 mm \u0026 1PCS","offer_id":52410773471506,"sku":"GYJLTSHXJZC6127x1","price":14.65,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6205 - ZZCM \/ 25x52x15 mm \u0026 1PCS","offer_id":52410773504274,"sku":"GYJLTSHXJZC6128x1","price":16.89,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6206 - ZZCM \/ 30x62x16 mm \u0026 1PCS","offer_id":52410773537042,"sku":"GYJLTSHXJZC6129x1","price":30.5,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6207 - ZZCM \/ 35x72x17 mm \u0026 1PCS","offer_id":52410773569810,"sku":"GYJLTSHXJZC6130x1","price":32.99,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6208 - ZZCM \/ 40x80x18 mm \u0026 1PCS","offer_id":52410773602578,"sku":"GYJLTSHXJZC6131x1","price":41.13,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6209 - ZZCM \/ 45x85x19 mm \u0026 1PCS","offer_id":52410773635346,"sku":"GYJLTSHXJZC6132x1","price":49.06,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6210 - ZZCM \/ 50x90x20 mm \u0026 1PCS","offer_id":52410773668114,"sku":"GYJLTSHXJZC6133x1","price":52.29,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6300 - ZZCM \/ 10x35x11 mm \u0026 1PCS","offer_id":52410773700882,"sku":"GYJLTSHXJZC6145x1","price":9.41,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6301 - ZZCM \/ 12x37x12 mm \u0026 1PCS","offer_id":52410773733650,"sku":"GYJLTSHXJZC6146x1","price":10.01,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6302 - ZZCM \/ 15x42x13 mm \u0026 1PCS","offer_id":52410773766418,"sku":"GYJLTSHXJZC6147x1","price":12.2,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6303 - ZZCM \/ 17x47x14 mm \u0026 1PCS","offer_id":52410773799186,"sku":"GYJLTSHXJZC6148x1","price":16.74,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6304 - ZZCM \/ 20x52x15 mm \u0026 1PCS","offer_id":52410773831954,"sku":"GYJLTSHXJZC6149x1","price":18.69,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6305 - ZZCM \/ 25x62x17 mm \u0026 1PCS","offer_id":52410773864722,"sku":"GYJLTSHXJZC6150x1","price":27.36,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6306 - ZZCM \/ 30x72x19 mm \u0026 1PCS","offer_id":52410773897490,"sku":"GYJLTSHXJZC6151x1","price":38.88,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6307 - ZZCM \/ 35x80x21 mm \u0026 1PCS","offer_id":52410773930258,"sku":"GYJLTSHXJZC6152x1","price":46.81,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6308 - ZZCM \/ 40x90x23 mm \u0026 1PCS","offer_id":52410773963026,"sku":"GYJLTSHXJZC6153x1","price":66.11,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6309 - ZZCM \/ 45x100x25 mm \u0026 1PCS","offer_id":52410773995794,"sku":"GYJLTSHXJZC6154x1","price":84.61,"currency_code":"USD","in_stock":true},{"title":"NSK \/ 6310 - ZZCM \/ 50x110x27 mm \u0026 1PCS","offer_id":52410774028562,"sku":"GYJLTSHXJZC6155x1","price":106.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture6of8_207648ea-5947-420e-ace8-3690ad92e91f.jpg?v=1782568086","url":"https:\/\/homediyer.com\/products\/nsk-zz-cm-series-ball-bearings-6000-6310-choose-size","provider":"HomeDIYer","version":"1.0","type":"link"}