{"product_id":"miniature-thrust-ball-bearing-51100-51218","title":"10mm-90mm Miniature Thrust Ball Bearing with Washer Ball Bearings 51100 to 51218","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eMiniature Thrust Ball Bearing — Single-Direction Axial Load Capacity for Precision Assemblies\u003c\/h2\u003e\n\u003cp\u003eWhen axial play causes premature wear in your gearbox, rotary table, or hydraulic jack, the root cause is often an undersized or mismatched thrust bearing. Engineers and maintenance technicians who need a reliable single-direction axial load solution will find the 51100–51218 series miniature thrust ball bearing a direct-fit answer: standardized dimensions, steel cage construction, and a flat washer seat that distributes load evenly across the raceway.\u003c\/p\u003e\n\u003cp\u003eEach bearing in this series consists of a shaft washer, a housing washer, and a ball-and-cage assembly. The bore (inner diameter) spans 10 mm to 110 mm (approx. 0.39\" to 4.33\"), outer diameters range from 24 mm to 160 mm (approx. 0.94\" to 6.30\"), and heights from 9 mm to 40 mm (approx. 0.35\" to 1.57\"). All critical dimensions conform to ISO 104 \/ DIN 711 standards, ensuring interchangeability with OEM and aftermarket components.\u003c\/p\u003e\n\u003cp\u003eTypical applications include vertical shaft assemblies in machine tools, worm gear reducers where axial thrust must be isolated from radial loads, automotive steering columns, and laboratory rotary stages requiring low-friction axial positioning. The flat-washer design also makes these miniature thrust ball bearings a common replacement in bottle-capping machinery and conveyor turntables.\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 ISO 104 \/ DIN 711 shaft and housing seats. Verify bore (ID), outer diameter (OD), and height against your assembly drawing before ordering. Select your size and model number above.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Miniature Thrust Ball Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\u003cstrong\u003eThree-piece washer assembly\u003c\/strong\u003e — shaft washer, housing washer, and ball-and-cage unit ship together, ready to install as a matched set without additional sourcing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eISO 104 \/ DIN 711 standardized dimensions\u003c\/strong\u003e — bore range 10–110 mm, OD 24–160 mm; drop-in compatible with existing housings and shafts without machining modifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e\u003cstrong\u003eSingle-direction axial load design\u003c\/strong\u003e — raceway geometry optimized for one-way thrust; keeps axial play under control in gearboxes, jacks, and rotary tables where reversing loads are absent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eSteel cage construction\u003c\/strong\u003e — the ball retainer maintains even ball spacing under load, reducing heat buildup and extending service intervals compared to full-complement designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eWide size selection — 51100 to 51218 series\u003c\/strong\u003e — 45 variants covering bore sizes from 10 mm to 110 mm let you source the correct bearing for small instrument assemblies and mid-range industrial shafts from a single listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🧰\u003c\/span\u003e\u003cstrong\u003eFlat-seat washer for even load distribution\u003c\/strong\u003e — the flat housing washer seats flush against the bearing housing face, preventing edge loading that can cause raceway spalling in misaligned installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Thrust Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eSingle-Direction Thrust Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries \/ Model Range\u003c\/th\u003e\n\u003ctd\u003e51100, 51200, 51104, 51204, 51304, 51105, 51205, 51305, 51106, 51206, 51306, 51406, 51107, 51207, 51307, 51108, 51208, 51308, 51408, 51111, 51211, 51311, 51110, 51210, 51310, 51109, 51209, 51309, 51112, 51212, 51312, 51113, 51213, 51313, 51114, 51214, 51314, 51117, 51217, 51120, 51220, 51122, 51222, 51118, 51218\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore (ID) Range\u003c\/th\u003e\n\u003ctd\u003e10 mm – 110 mm (0.39\" – 4.33\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD) Range\u003c\/th\u003e\n\u003ctd\u003e24 mm – 160 mm (0.94\" – 6.30\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight Range\u003c\/th\u003e\n\u003ctd\u003e9 mm – 40 mm (0.35\" – 1.57\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCage Material\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eAxial (single-direction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO 104 \/ DIN 711\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\u003eDynamic Load Rating (C)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStatic Load Rating (C₀)\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMax Operating Speed\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature Range\u003c\/th\u003e\n\u003ctd\u003eTypically −20°C to +120°C (−4°F to +248°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece\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 thrust ball bearing size for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bore (ID) to your shaft diameter and the outer diameter (OD) to your housing bore. Then confirm the height fits within your axial clearance. Use the Size(ID×OD×Height) option above — for example, 30×52×16 means a 30 mm bore, 52 mm OD, and 16 mm height. Cross-reference the model number (e.g., 51206) with your OEM drawing or bearing catalog to confirm interchangeability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 511xx, 512xx, 513xx, and 514xx series?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eAll four series are single-direction thrust ball bearings sharing the same bore size for a given last two digits (e.g., 04 = 20 mm bore). The series number indicates the cross-section (OD and height): 511xx is the lightest section, 512xx is medium, 513xx is heavier, and 514xx is the heaviest. A larger cross-section provides a higher load rating at the cost of increased envelope size and weight.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings handle both axial and radial loads simultaneously?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. Thrust ball bearings in the 511xx–514xx series are designed exclusively for axial (thrust) loads in one direction. They cannot support radial loads. If your application involves combined axial and radial loading, pair this bearing with a separate deep-groove or angular-contact ball bearing to handle the radial component.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion-resistant for wet or outdoor environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe standard steel cage and raceway washers offer moderate corrosion resistance suitable for dry or lightly lubricated indoor environments. For wet, washdown, or outdoor applications, apply a compatible grease or oil to the bearing surfaces before installation and re-lubricate at regular service intervals. If your environment requires stainless steel components, contact us to confirm availability for your specific size.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat lubrication should I use, and how often should I re-lubricate?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA lithium-based grease (NLGI Grade 2) is suitable for most general-purpose applications. Apply a thin, even film to both washer faces and the ball-and-cage assembly before installation. Re-lubrication interval depends on operating speed, load, and temperature — typically every 500–2,000 operating hours for moderate-duty cycles. Avoid over-greasing, which can cause churning and elevated operating temperatures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install a thrust ball bearing correctly to avoid premature failure?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEnsure the shaft washer seats against the rotating component (shaft shoulder) and the housing washer seats against the stationary component (housing face). Never press on the ball-and-cage assembly directly — apply force only to the washer faces. Verify that the shaft and housing seats are flat, clean, and within the recommended tolerance (typically h6 for the shaft, H7 for the housing). Misalignment between shaft and housing axes should not exceed 2–4 arc-minutes for standard series bearings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use one bearing to replace a different model number with the same bore size?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eOnly if the OD and height also match. For example, a 51206 (30×52×16) cannot directly replace a 51306 (30×60×21) even though both have a 30 mm bore, because the OD and height differ. Always verify all three dimensions — ID, OD, and height — against your housing and shaft before substituting model numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your Size(ID×OD×Height) and Model above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"10x24x9 \/ 51100","offer_id":52410085802258,"sku":"KEYLA075410x1","price":3.43,"currency_code":"USD","in_stock":true},{"title":"10x26x11 \/ 51200","offer_id":52410085835026,"sku":"KEYLA075411x1","price":3.89,"currency_code":"USD","in_stock":true},{"title":"20x35x10 \/ 51104","offer_id":52410085867794,"sku":"KEYLA075412x1","price":4.71,"currency_code":"USD","in_stock":true},{"title":"20x40x14 \/ 51204","offer_id":52410085900562,"sku":"KEYLA075413x1","price":7.21,"currency_code":"USD","in_stock":true},{"title":"20x47x18 \/ 51304","offer_id":52410085933330,"sku":"KEYLA075414x1","price":13.89,"currency_code":"USD","in_stock":true},{"title":"25x42x11 \/ 51105","offer_id":52410085966098,"sku":"KEYLA075415x1","price":6.32,"currency_code":"USD","in_stock":true},{"title":"25x47x15 \/ 51205","offer_id":52410085998866,"sku":"KEYLA075416x1","price":9.45,"currency_code":"USD","in_stock":true},{"title":"25x52x18 \/ 51305","offer_id":52410086031634,"sku":"KEYLA075417x1","price":14.44,"currency_code":"USD","in_stock":true},{"title":"30x47x11 \/ 51106","offer_id":52410086064402,"sku":"KEYLA075418x1","price":7.38,"currency_code":"USD","in_stock":true},{"title":"30x52x16 \/ 51206","offer_id":52410086097170,"sku":"KEYLA075419x1","price":12.35,"currency_code":"USD","in_stock":true},{"title":"30x60x21 \/ 51306","offer_id":52410086129938,"sku":"KEYLA075420x1","price":20.35,"currency_code":"USD","in_stock":true},{"title":"30x70x28 \/ 51406","offer_id":52410086162706,"sku":"KEYLA075421x1","price":33.92,"currency_code":"USD","in_stock":true},{"title":"35x52x11 \/ 51107","offer_id":52410086195474,"sku":"KEYLA075422x1","price":8.02,"currency_code":"USD","in_stock":true},{"title":"35x62x18 \/ 51207","offer_id":52410086228242,"sku":"KEYLA075423x1","price":17.1,"currency_code":"USD","in_stock":true},{"title":"35x68x24 \/ 51307","offer_id":52410086261010,"sku":"KEYLA075424x1","price":28.1,"currency_code":"USD","in_stock":true},{"title":"40x60x13 \/ 51108","offer_id":52410086293778,"sku":"KEYLA075425x1","price":11.25,"currency_code":"USD","in_stock":true},{"title":"40x68x19 \/ 51208","offer_id":52410086326546,"sku":"KEYLA075426x1","price":20.35,"currency_code":"USD","in_stock":true},{"title":"40x78x26 \/ 51308","offer_id":52410086359314,"sku":"KEYLA075427x1","price":39.6,"currency_code":"USD","in_stock":true},{"title":"40x90x36 \/ 51408","offer_id":52410086392082,"sku":"KEYLA075428x1","price":85.45,"currency_code":"USD","in_stock":true},{"title":"55x78x16 \/ 51111","offer_id":52410086424850,"sku":"KEYLA075429x1","price":18.44,"currency_code":"USD","in_stock":true},{"title":"55x90x25 \/ 51211","offer_id":52410086457618,"sku":"KEYLA075430x1","price":41.56,"currency_code":"USD","in_stock":true},{"title":"55x105x35 \/ 51311","offer_id":52410086490386,"sku":"KEYLA075431x1","price":85.35,"currency_code":"USD","in_stock":true},{"title":"50x70x14 \/ 51110","offer_id":52410086523154,"sku":"KEYLA075432x1","price":14.61,"currency_code":"USD","in_stock":true},{"title":"50x78x22 \/ 51210","offer_id":52410086555922,"sku":"KEYLA075433x1","price":28.75,"currency_code":"USD","in_stock":true},{"title":"50x95x31 \/ 51310","offer_id":52410086588690,"sku":"KEYLA075434x1","price":67.33,"currency_code":"USD","in_stock":true},{"title":"45x65x14 \/ 51109","offer_id":52410086621458,"sku":"KEYLA075435x1","price":13.48,"currency_code":"USD","in_stock":true},{"title":"45x72x20 \/ 51209","offer_id":52410086654226,"sku":"KEYLA075436x1","price":24.93,"currency_code":"USD","in_stock":true},{"title":"45x85x26 \/ 51309","offer_id":52410086686994,"sku":"KEYLA075437x1","price":50.78,"currency_code":"USD","in_stock":true},{"title":"60x85x17 \/ 51112","offer_id":52410086719762,"sku":"KEYLA075438x1","price":22.6,"currency_code":"USD","in_stock":true},{"title":"60x95x26 \/ 51212","offer_id":52410086752530,"sku":"KEYLA075439x1","price":48.04,"currency_code":"USD","in_stock":true},{"title":"60x110x35 \/ 51312","offer_id":52410086785298,"sku":"KEYLA075440x1","price":95.57,"currency_code":"USD","in_stock":true},{"title":"65x90x17 \/ 51113","offer_id":52410086818066,"sku":"KEYLA075441x1","price":25.42,"currency_code":"USD","in_stock":true},{"title":"65x100x27 \/ 51213","offer_id":52410086850834,"sku":"KEYLA075442x1","price":52.1,"currency_code":"USD","in_stock":true},{"title":"65x110x35 \/ 51313","offer_id":52410086883602,"sku":"KEYLA075443x1","price":106.91,"currency_code":"USD","in_stock":true},{"title":"70x95x18 \/ 51114","offer_id":52410086916370,"sku":"KEYLA075444x1","price":28.18,"currency_code":"USD","in_stock":true},{"title":"70x105x27 \/ 51214","offer_id":52410086949138,"sku":"KEYLA075445x1","price":57.46,"currency_code":"USD","in_stock":true},{"title":"70x125x40 \/ 51314","offer_id":52410086981906,"sku":"KEYLA075446x1","price":132.94,"currency_code":"USD","in_stock":true},{"title":"85x110x19 \/ 51117","offer_id":52410087014674,"sku":"KEYLA075448x1","price":37.71,"currency_code":"USD","in_stock":true},{"title":"85x125x31 \/ 51217","offer_id":52410087047442,"sku":"KEYLA075449x1","price":90.59,"currency_code":"USD","in_stock":true},{"title":"100x135x25 \/ 51120","offer_id":52410087080210,"sku":"KEYLA075451x1","price":74.75,"currency_code":"USD","in_stock":true},{"title":"100x150x38 \/ 51220","offer_id":52410087112978,"sku":"KEYLA075452x1","price":161.2,"currency_code":"USD","in_stock":true},{"title":"110x145x25 \/ 51122","offer_id":52410087145746,"sku":"KEYLA075455x1","price":81.23,"currency_code":"USD","in_stock":true},{"title":"110x160x38 \/ 51222","offer_id":52410087178514,"sku":"KEYLA075456x1","price":177.41,"currency_code":"USD","in_stock":true},{"title":"90x120x22 \/ 51118","offer_id":52410087211282,"sku":"KEYLA075458x1","price":60.7,"currency_code":"USD","in_stock":true},{"title":"90x135x35 \/ 51218","offer_id":52410087244050,"sku":"KEYLA075459x1","price":126.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of7_12f028b0-1b55-413c-81b9-ed23a772dfaf.jpg?v=1782373336","url":"https:\/\/homediyer.com\/products\/miniature-thrust-ball-bearing-51100-51218","provider":"HomeDIYer","version":"1.0","type":"link"}