{"product_id":"axial-ball-thrust-bearing-51100-to-51322","title":"High Quality Plane Bearings 3-Parts Axial Ball Thrust Bearing 51100 to 51322","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eAxial Ball Thrust Bearings 51100–51322 — Reliable Axial Load Support for Shafts \u0026amp; Machinery\u003c\/h2\u003e\n\u003cp\u003eWhen a rotating shaft needs to handle axial (thrust) loads without wobble or premature wear, the wrong bearing choice costs time and money. Engineers, machinists, and serious DIYers working on presses, gearboxes, rotary tables, and vertical shaft assemblies need a bearing that stays true under load — and that's exactly what these 51-series axial ball thrust bearings are built for.\u003c\/p\u003e\n\u003cp\u003eEach bearing is a 3-part assembly: a shaft washer, a housing washer, and a ball-and-cage assembly seated between them. The series spans inner diameters from 10 mm (0.39 in) to 140 mm (5.51 in) and outer diameters from 24 mm (0.94 in) to 180 mm (7.09 in), with thickness ranging from 9 mm (0.35 in) to 31 mm (1.22 in) depending on the selected size. All variants conform to standard 511xx and 513xx dimensional series.\u003c\/p\u003e\n\u003cp\u003eTypical applications include vertical shaft thrust support in drill presses and milling machines, axial load management in automotive steering columns and jack screws, rotary table and lazy-susan pivot assemblies, and hydraulic cylinder rod-end thrust applications where radial loads are minimal.\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 Designed for pure axial (thrust) load applications. Not suitable as a primary radial bearing. Fits standard 511xx and 513xx shaft and housing bore tolerances. Verify ID, OD, and thickness against your assembly drawings before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Axial Ball Thrust Bearings\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003e3-Part Modular Design\u003c\/strong\u003e — Shaft washer, housing washer, and ball-and-cage assembly allow easy installation and replacement of individual components without discarding the full bearing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eWide Size Range\u003c\/strong\u003e — 40 size options from 51100 (10×24×9 mm) to 51322 (110×190×63 mm) cover the majority of industrial and workshop thrust bearing applications in a single product line.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\u003cstrong\u003eUnidirectional Axial Load Capacity\u003c\/strong\u003e — Optimized geometry transmits thrust forces along the shaft axis efficiently, reducing heat buildup and extending service life under sustained axial loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003eHardened Steel Raceways\u003c\/strong\u003e — Through-hardened washer raceways resist brinelling and surface fatigue under shock loads, maintaining dimensional accuracy over extended duty cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\u003cstrong\u003eStandard Dimensional Series\u003c\/strong\u003e — Conforms to 511xx and 513xx series dimensional standards, making these direct replacements for OEM bearings in presses, gearboxes, and machine tools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cstrong\u003eGrease-Lubricated Ready\u003c\/strong\u003e — Open design accepts standard lithium-based or EP grease applied at installation; compatible with most bearing greases used in industrial and workshop environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Axial Ball Thrust Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eSingle-direction axial ball thrust bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConstruction\u003c\/th\u003e\n\u003ctd\u003e3-part (shaft washer + housing washer + ball \u0026amp; cage assembly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003ctd\u003e511xx (51100–51128) and 513xx (51305–51322)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e10 mm – 140 mm (0.39 in – 5.51 in) — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e24 mm – 190 mm (0.94 in – 7.48 in) — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness\u003c\/th\u003e\n\u003ctd\u003e9 mm – 63 mm (0.35 in – 2.48 in) — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened carbon steel (raceways and balls)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eCage Material\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eUnlubricated (grease to be applied at installation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eAxial (thrust) only — single direction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOperating Temperature\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Order\u003c\/th\u003e\n\u003ctd\u003e1 piece (1pcs)\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 right 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. The thickness must fit within your assembly's axial clearance. Cross-reference the part number (e.g., 51104 = 20×35×10 mm) with your engineering drawings or the existing bearing's stamped number. When in doubt, measure the shaft with calipers and select the closest standard ID.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan these bearings handle radial loads as well as axial loads?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. Single-direction axial ball thrust bearings are designed exclusively for axial (thrust) loads acting parallel to the shaft axis. They have very limited radial load capacity and should not be used as the sole radial support in a shaft assembly. If your application involves combined radial and axial loads, pair this bearing with a separate deep-groove or angular-contact radial bearing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 511xx and 513xx series?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eBoth are single-direction axial ball thrust bearings, but the 513xx series (51305–51322) features a larger OD and greater thickness relative to the same shaft ID compared to the 511xx series. This gives the 513xx variants higher axial load capacity and greater rigidity, making them better suited for heavier-duty presses, hydraulic cylinders, and industrial gearboxes where the 511xx series may be undersized.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat grease should I use when installing these bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eA lithium-based NLGI #2 grease or an EP (extreme pressure) bearing grease is suitable for most workshop and light industrial applications. Apply a thin, even coat to the raceways and ball cage before assembly. Avoid over-packing, as excess grease can cause churning and heat buildup. For high-temperature or food-grade environments, consult a lubrication specialist for the appropriate grease type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these corrosion-resistant or suitable for wet environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are made from hardened carbon steel and are not inherently corrosion-resistant. They are not recommended for continuous exposure to water, salt spray, or corrosive chemicals without additional protection. For wet or corrosive environments, consider applying a rust-inhibiting grease, using a sealed housing, or sourcing stainless steel variants. Contact us to confirm availability of corrosion-resistant options.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I install an axial ball thrust bearing correctly?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEnsure the shaft washer (the washer with the smaller bore) seats against the rotating component (shaft shoulder), and the housing washer seats against the stationary component (housing face). The ball-and-cage assembly sits between the two washers. Never press on the cage or balls — apply installation force only to the washer faces. Verify that the shaft and housing are square to prevent edge loading, which can significantly reduce bearing life.\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 OEM thrust bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes, provided the part number and dimensions match your OEM specification. The 511xx and 513xx series follow standard dimensional conventions, so a 51106 bearing from this listing will have the same 30×47×11 mm dimensions as any other standard 51106. Always verify the ID, OD, and thickness against your machine's service manual or the original bearing's markings before ordering.\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×Thickness) above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"51100 (10*24*9mm) \/ 1pcs","offer_id":52410656456978,"sku":"FXLDGZCWJ0771x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"51101 (12*26*9mm) \/ 1pcs","offer_id":52410656489746,"sku":"FXLDGZCWJ0772x1","price":3.93,"currency_code":"USD","in_stock":true},{"title":"51102 (15*28*9mm) \/ 1pcs","offer_id":52410656522514,"sku":"FXLDGZCWJ0773x1","price":4.07,"currency_code":"USD","in_stock":true},{"title":"51103 (17*30*9mm) \/ 1pcs","offer_id":52410656555282,"sku":"FXLDGZCWJ0774x1","price":4.28,"currency_code":"USD","in_stock":true},{"title":"51104 (20*35*10mm) \/ 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