{"product_id":"single-direction-51108-to-51115-axial-thrust-ball-bearings","title":"Single Direction 51108 51109 to 51115 Axial Thrust Ball Bearings Plane Bearing","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eSingle-Direction Axial Thrust Ball Bearings 51108–51115 — Reliable Axial Load Control\u003c\/h2\u003e\n\u003cp\u003eWhen a rotating shaft must carry pure axial (thrust) loads without radial interference, the wrong bearing choice leads to premature wear, shaft migration, and costly downtime. Single-direction axial thrust ball bearings in the 511xx series are the go-to solution for engineers, maintenance technicians, and precision-equipment builders who need a dedicated thrust element that stays in place under load.\u003c\/p\u003e\n\u003cp\u003eThis listing covers eight models — 51108 through 51115 — spanning inner diameters from 40 mm (1.57 in) to 75 mm (2.95 in), outer diameters from 60 mm (2.36 in) to 100 mm (3.94 in), and heights from 13 mm (0.51 in) to 18 mm (0.71 in). Each bearing consists of a shaft washer, a housing washer, and a steel ball-and-cage assembly, all manufactured to standard dimensional tolerances for drop-in interchangeability.\u003c\/p\u003e\n\u003cp\u003eTypical applications include vertical pump thrust faces, hydraulic press platens, rotary indexing tables, machine-tool spindle preload assemblies, and automotive steering columns — anywhere a clean, one-directional axial thrust ball bearing is required to manage unidirectional axial forces with minimal friction.\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 511xx-series shaft and housing seats. Verify shaft diameter and housing bore against the model dimensions listed in the variant selector before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These Axial Thrust Ball Bearings\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-list\"\u003e\n\u003cp\u003e\u003cstrong\u003e🎯 Pure Axial Load Design\u003c\/strong\u003e\u003cbr\u003eSingle-direction configuration transmits thrust in one axial direction only, eliminating radial load interference and allowing precise force routing in press, pump, and spindle assemblies.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📐 Eight Size Options (51108–51115)\u003c\/strong\u003e\u003cbr\u003eID range 40–75 mm, OD range 60–100 mm, height 13–18 mm. Standardized 511xx dimensions ensure interchangeability with OEM and aftermarket seats without custom machining.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🔄 Three-Piece Washer-and-Cage Assembly\u003c\/strong\u003e\u003cbr\u003eShaft washer, housing washer, and ball-and-cage retainer are matched as a unit, maintaining correct ball complement and even load distribution across the raceway.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🛡️ Hardened Raceway Surfaces\u003c\/strong\u003e\u003cbr\u003eThrough-hardened steel washers provide wear resistance under sustained axial loading, extending service intervals in continuous-duty applications such as rotary tables and indexing fixtures.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e📦 Flexible Pack Quantities\u003c\/strong\u003e\u003cbr\u003eAvailable in 1, 2, 5, or 10-piece packs — order a single bearing for a repair job or stock a multi-pack for production-line maintenance without overpaying for excess inventory.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e🔁 Drop-In Interchangeability\u003c\/strong\u003e\u003cbr\u003eDimensions conform to ISO\/DIN 511xx standards, making these bearings direct replacements for equivalent-model bearings from other manufacturers with no seat modification required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Axial Thrust Ball Bearings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Series\u003c\/th\u003e\n\u003ctd\u003e511xx (Single-Direction Thrust)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eModels Covered\u003c\/th\u003e\n\u003ctd\u003e51108, 51109, 51110, 51111, 51112, 51113, 51114, 51115\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID) Range\u003c\/th\u003e\n\u003ctd\u003e40 mm – 75 mm (1.57 in – 2.95 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD) Range\u003c\/th\u003e\n\u003ctd\u003e60 mm – 100 mm (2.36 in – 3.94 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight (Thickness) Range\u003c\/th\u003e\n\u003ctd\u003e13 mm – 18 mm (0.51 in – 0.71 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eSingle-direction axial (thrust) only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAssembly Type\u003c\/th\u003e\n\u003ctd\u003eThree-piece: shaft washer + housing washer + ball-cage assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eHardened bearing steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eDimensional Standard\u003c\/th\u003e\n\u003ctd\u003eISO \/ DIN 511xx series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Quantities\u003c\/th\u003e\n\u003ctd\u003e1, 2, 5, or 10 pieces per order\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\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eStatic Load Rating\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\u003eContact us to confirm\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 model number for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the model to your shaft diameter: 51108 fits a 40 mm shaft, 51109 fits 45 mm, 51110 fits 50 mm, 51111 fits 55 mm, 51112 fits 60 mm, 51113 fits 65 mm, 51114 fits 70 mm, and 51115 fits 75 mm. Confirm the housing bore matches the listed OD and that the available height (thickness) fits your assembly stack-up before ordering.\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 thrust ball bearings are designed exclusively for axial (thrust) loads in one direction. They are not suitable for combined radial and axial loading. If your application involves radial forces, a deep-groove or angular-contact ball bearing would be the appropriate choice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between a shaft washer and a housing washer?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe shaft washer (inner ring) rotates with the shaft, while the housing washer (outer ring) remains stationary in the housing bore. The ball-and-cage assembly sits between them and transmits the axial load. Correct orientation — shaft washer against the rotating component — is essential for proper function and bearing life.\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\u003eStandard 511xx thrust ball bearings use hardened carbon-steel washers, which are not inherently corrosion-resistant. For wet, humid, or chemically exposed environments, apply a compatible grease or oil film and consider regreasing intervals. If continuous moisture exposure is expected, contact us to discuss stainless-steel or coated alternatives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eDo these bearings come pre-lubricated?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are supplied without pre-applied grease so that you can select the lubricant best suited to your operating temperature, speed, and load conditions. Apply a lithium-based or EP grease to the raceways and ball complement before installation. Relubricate at intervals appropriate to your duty cycle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use a single bearing to handle thrust in both directions?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eNo. A single-direction thrust ball bearing handles axial load in one direction only. For bidirectional axial loading, you would need to mount two single-direction bearings back-to-back (face-to-face) or select a double-direction thrust ball bearing (513xx series). Contact us if you need guidance on the correct configuration for your assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat pack size should I order for a production maintenance program?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eFor planned maintenance on multiple machines, the 5-pack or 10-pack options offer a lower per-unit cost and ensure you have spares on hand to minimize downtime. For a single repair or prototype build, the 1-piece or 2-piece options let you validate fit and function before committing to larger quantities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your model size and quantity above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"51108 (40x60x13mm) \/ 1","offer_id":52410429636882,"sku":"LXDSHXJZC1534x1","price":12.63,"currency_code":"USD","in_stock":true},{"title":"51109 (45x65x14mm) \/ 1","offer_id":52410429669650,"sku":"LXDSHXJZC1535x1","price":14.81,"currency_code":"USD","in_stock":true},{"title":"51110 (50x70x14mm) \/ 1","offer_id":52410429702418,"sku":"LXDSHXJZC1536x1","price":15.76,"currency_code":"USD","in_stock":true},{"title":"51111 (55x78x16mm) \/ 1","offer_id":52410429735186,"sku":"LXDSHXJZC1537x1","price":22.15,"currency_code":"USD","in_stock":true},{"title":"51112 (60x85x17mm) \/ 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10","offer_id":52410430652690,"sku":"LXDSHXJZC1541x10","price":342.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Main-16_9c06dfb6-a29d-45d5-86b9-3681c6cf1bdb.jpg?v=1782444403","url":"https:\/\/homediyer.com\/products\/single-direction-51108-to-51115-axial-thrust-ball-bearings","provider":"HomeDIYer","version":"1.0","type":"link"}