{"product_id":"axial-thrust-ball-bearings-51100-51106-miniature-plane-bearing","title":"High Precision Axial Thrust Ball Bearings 3-Part Miniature Plane Bearing","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eAxial Thrust Ball Bearings — Reliable Load Support for Miniature Plane Applications\u003c\/h2\u003e\n\u003cp\u003eWhen your rotating assembly demands precise axial load management in a compact footprint, standard radial bearings fall short. Engineers, hobbyists, and machine builders working on low-speed rotary tables, screw jacks, vertical shafts, and miniature machinery need a dedicated thrust solution that fits tight spaces without sacrificing load capacity. These axial thrust ball bearings are designed for exactly that — delivering controlled, smooth axial force transfer in applications where radial space is limited.\u003c\/p\u003e\n\u003cp\u003eEach bearing follows the classic 3-part construction: a shaft washer (tight-fit ring), a housing washer (loose-fit ring), and a ball-and-cage assembly sandwiched between them. Available in seven standard sizes from the 51100 series (10×24×9mm \/ 0.39\"×0.94\"×0.35\") through the 51106 series (30×47×11mm \/ 1.18\"×1.85\"×0.43\"), these bearings cover bore diameters from 10mm to 30mm and outer diameters from 24mm to 47mm, with heights ranging from 9mm to 11mm.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include vertical shaft support in rotary indexing tables, axial load management in worm gear reducers, thrust positioning in small hydraulic or pneumatic cylinders, and preload applications in miniature CNC spindle assemblies — all scenarios where long-tail search terms like \"miniature thrust bearing for rotary table\" or \"51100 series axial ball bearing\" describe exactly what builders are sourcing.\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 51100-series shaft and housing seats. Verify bore diameter (ID) and outer diameter (OD) against your assembly drawings before ordering. Select your size above.\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\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e \u003cstrong\u003e3-Part Modular Design\u003c\/strong\u003e\n\u003cp\u003eShaft washer, housing washer, and ball-cage assembly are separable for easy installation, inspection, and replacement without disturbing adjacent components.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e \u003cstrong\u003e7 Standard Sizes (51100–51106)\u003c\/strong\u003e\n\u003cp\u003eBore diameters from 10mm to 30mm (0.39\"–1.18\") and ODs from 24mm to 47mm (0.94\"–1.85\") cover a wide range of miniature and light-duty industrial applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚡\u003c\/span\u003e \u003cstrong\u003eDedicated Axial Load Capacity\u003c\/strong\u003e\n\u003cp\u003eEngineered specifically for one-directional axial (thrust) loads — ideal for vertical shafts, screw mechanisms, and rotary tables where radial bearings are unsuitable.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e \u003cstrong\u003eCorrosion-Resistant Construction\u003c\/strong\u003e\n\u003cp\u003eManufactured from bearing-grade steel with standard surface treatment, providing reliable service life in typical indoor mechanical environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e \u003cstrong\u003eLow-Friction Ball-and-Cage Assembly\u003c\/strong\u003e\n\u003cp\u003eThe retained ball complement minimizes friction and wear during operation, supporting smooth, consistent axial motion at low-to-moderate rotational speeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e \u003cstrong\u003eFlexible Pack Quantities\u003c\/strong\u003e\n\u003cp\u003eAvailable in 1, 4, or 10-piece packs — order a single unit for prototyping or stock up in multiples for production runs and maintenance kits.\u003c\/p\u003e\n\u003c\/div\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\u003e51100 Series (51100, 51101, 51102, 51103, 51104, 51105, 51106)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBearing Type\u003c\/th\u003e\n\u003ctd\u003eSingle-Direction Axial Thrust Ball Bearing, 3-Part\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eBore Diameter (ID)\u003c\/th\u003e\n\u003ctd\u003e10mm – 30mm (0.39\" – 1.18\") — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD)\u003c\/th\u003e\n\u003ctd\u003e24mm – 47mm (0.94\" – 1.85\") — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eHeight (Width)\u003c\/th\u003e\n\u003ctd\u003e9mm – 11mm (0.35\" – 0.43\") — See variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eBearing-Grade Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Direction\u003c\/th\u003e\n\u003ctd\u003eAxial (Thrust) — One Direction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eNumber of Parts\u003c\/th\u003e\n\u003ctd\u003e3 (Shaft Washer + Housing Washer + Ball \u0026amp; Cage Assembly)\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 Speed\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLubrication\u003c\/th\u003e\n\u003ctd\u003eContact us to confirm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Quantity\u003c\/th\u003e\n\u003ctd\u003e1 Pcs \/ 4 Pcs \/ 10 Pcs — See 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 right size axial thrust ball bearing for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the bearing's bore diameter (ID) to your shaft diameter and the outer diameter (OD) to your housing seat. The 51100 series uses standardized dimensions: for example, the 51100 has a 10mm bore and 24mm OD, while the 51106 has a 30mm bore and 47mm OD. Always verify both ID and OD against your engineering drawings before ordering. Select your size from the dropdown above.\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 thrust ball bearings are designed exclusively for axial (thrust) loads acting parallel to the shaft axis. They are not suitable for radial loads or combined radial-axial loads. If your application involves both load types, consider a combined angular contact or deep groove ball bearing instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the shaft washer and the housing washer?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe shaft washer (tight-fit ring) has a bore that fits snugly onto the rotating shaft. The housing washer (loose-fit ring) sits in the stationary housing with a slight clearance fit. The ball-and-cage assembly runs between them. Correct identification and installation of each washer is critical — reversing them will cause premature failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these bearings corrosion resistant? Can I use them in wet or outdoor environments?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese bearings are manufactured from standard bearing-grade steel with conventional surface treatment, suitable for typical indoor mechanical environments. They are not rated for continuous exposure to moisture, chemicals, or outdoor conditions. For wet or corrosive environments, consider stainless steel thrust bearings or apply appropriate lubrication and sealing measures.\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\u003eAxial thrust ball bearings in this series are typically supplied without pre-applied grease. Apply a light bearing grease (e.g., NLGI Grade 2 lithium-based grease) to the ball-and-cage assembly and both washer contact faces before installation. Re-lubrication intervals depend on operating speed, load, and environment — consult your application's maintenance schedule or contact us for guidance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eShould I buy 1, 4, or 10 pieces? Which pack size is right for me?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 1-piece pack is ideal for prototyping, repair, or single-machine builds where you need to verify fit before committing to larger quantities. The 4-piece pack suits small production runs or maintenance kits for multi-axis machines. The 10-piece pack offers the best per-unit value for production environments, spare parts inventory, or workshop stock where the same bearing size is used across multiple assemblies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum operating speed for these thrust bearings?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe 51100 series is designed for low-to-moderate rotational speeds. Maximum speed ratings vary by size and lubrication method. As a general guideline, these bearings perform best at speeds below 1,500 RPM for grease lubrication. For specific speed ratings by size, please contact us to confirm before use in high-speed applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your 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":"51100 10x24x9mm \/ 1Pcs","offer_id":52410589249810,"sku":"FXL57-0","price":1.97,"currency_code":"USD","in_stock":true},{"title":"51100 10x24x9mm \/ 4Pcs","offer_id":52410589282578,"sku":"FXL57-1","price":4.34,"currency_code":"USD","in_stock":true},{"title":"51100 10x24x9mm \/ 10Pcs","offer_id":52410589315346,"sku":"FXL57-2","price":10.13,"currency_code":"USD","in_stock":true},{"title":"51101 12x26x9mm \/ 1Pcs","offer_id":52410589348114,"sku":"FXL57-3","price":1.97,"currency_code":"USD","in_stock":true},{"title":"51101 12x26x9mm \/ 4Pcs","offer_id":52410589380882,"sku":"FXL57-4","price":4.61,"currency_code":"USD","in_stock":true},{"title":"51101 12x26x9mm \/ 10Pcs","offer_id":52410589413650,"sku":"FXL57-5","price":10.81,"currency_code":"USD","in_stock":true},{"title":"51102 15x28x9mm \/ 1Pcs","offer_id":52410589446418,"sku":"FXL57-6","price":2.03,"currency_code":"USD","in_stock":true},{"title":"51102 15x28x9mm \/ 4Pcs","offer_id":52410589479186,"sku":"FXL57-7","price":5.15,"currency_code":"USD","in_stock":true},{"title":"51102 15x28x9mm \/ 10Pcs","offer_id":52410589511954,"sku":"FXL57-8","price":12.17,"currency_code":"USD","in_stock":true},{"title":"51103 17x30x9mm \/ 1Pcs","offer_id":52410589544722,"sku":"FXL57-9","price":1.75,"currency_code":"USD","in_stock":true},{"title":"51103 17x30x9mm \/ 4Pcs","offer_id":52410589577490,"sku":"FXL57-10","price":5.37,"currency_code":"USD","in_stock":true},{"title":"51103 17x30x9mm \/ 10Pcs","offer_id":52410589610258,"sku":"FXL57-11","price":12.77,"currency_code":"USD","in_stock":true},{"title":"51104 20x35x10mm \/ 1Pcs","offer_id":52410589643026,"sku":"FXL57-12","price":2.16,"currency_code":"USD","in_stock":true},{"title":"51104 20x35x10mm \/ 4Pcs","offer_id":52410589675794,"sku":"FXL57-13","price":6.92,"currency_code":"USD","in_stock":true},{"title":"51104 20x35x10mm \/ 10Pcs","offer_id":52410589708562,"sku":"FXL57-14","price":16.85,"currency_code":"USD","in_stock":true},{"title":"51105 25x42x11mm \/ 1Pcs","offer_id":52410589741330,"sku":"FXL57-15","price":2.71,"currency_code":"USD","in_stock":true},{"title":"51105 25x42x11mm \/ 4Pcs","offer_id":52410589774098,"sku":"FXL57-16","price":9.37,"currency_code":"USD","in_stock":true},{"title":"51105 25x42x11mm \/ 10Pcs","offer_id":52410589806866,"sku":"FXL57-17","price":23.11,"currency_code":"USD","in_stock":true},{"title":"51106 30x47x11mm \/ 1Pcs","offer_id":52410589839634,"sku":"FXL57-18","price":2.98,"currency_code":"USD","in_stock":true},{"title":"51106 30x47x11mm \/ 4Pcs","offer_id":52410589872402,"sku":"FXL57-19","price":10.59,"currency_code":"USD","in_stock":true},{"title":"51106 30x47x11mm \/ 10Pcs","offer_id":52410589905170,"sku":"FXL57-20","price":26.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture2of4_b1463305-0ffd-45e7-ab30-fbd889c413c9.jpg?v=1782478121","url":"https:\/\/homediyer.com\/products\/axial-thrust-ball-bearings-51100-51106-miniature-plane-bearing","provider":"HomeDIYer","version":"1.0","type":"link"}