{"product_id":"pu-rubber-coated-ball-bearing-pulley-guide-wheel","title":"Polyurethane Molded Ball Bearing Pu Rubber Coated Bearings Pulley Guide Wheel","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003ePolyurethane Rubber Coated Ball Bearings — Smooth-Rolling Pulley Guide Wheels for DIY Builds\u003c\/h2\u003e\n\u003cp\u003eWhen standard metal bearings leave marks on rails, damage delicate surfaces, or generate unwanted noise in your build, a rubber-coated alternative makes a measurable difference. These polyurethane molded ball bearings are designed for makers, fabricators, and DIY builders who need a rolling element that grips, cushions, and glides without scratching the contact surface.\u003c\/p\u003e\n\u003cp\u003eEach unit consists of a steel ball bearing core encased in a molded polyurethane (PU) rubber outer shell. Available in inner diameter × outer diameter × thickness combinations ranging from 5×16×5mm (approx. 0.20\"×0.63\"×0.20\") up to 10×40×10mm (approx. 0.39\"×1.57\"×0.39\"), with colour options including Black, Transparent, and Blue. Sold individually (1 pc per listing).\u003c\/p\u003e\n\u003cp\u003eTypical applications include sliding door guide wheels, linear rail followers, conveyor pulley systems, 3D printer carriage wheels, and custom furniture roller assemblies — anywhere a low-noise, surface-safe rolling contact is needed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔩\u003c\/span\u003e Compatible with standard round rails, V-slot extrusions, flat tracks, and custom axle shafts matching the listed inner diameter. Verify your axle diameter against the ID dimension before ordering.\u003c\/div\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003ch2\u003e✅ Key Features of These PU Rubber Coated Ball Bearing Guide Wheels\u003c\/h2\u003e\n\u003cul class=\"hdiy-list\"\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🛡️\u003c\/span\u003e\u003cstrong\u003ePolyurethane Outer Shell\u003c\/strong\u003e — Molded PU rubber coating absorbs vibration and protects contact surfaces from scratching or marring during operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\u003cstrong\u003eSteel Ball Bearing Core\u003c\/strong\u003e — Precision steel bearing insert provides smooth, consistent rotation with low rolling resistance across the full range of sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\u003cstrong\u003eMultiple Size Options\u003c\/strong\u003e — Six ID×OD×thickness configurations (5×16×5mm through 10×40×10mm) let you match the wheel exactly to your axle and track geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🎨\u003c\/span\u003e\u003cstrong\u003eThree Colour Variants\u003c\/strong\u003e — Choose Black, Transparent, or Blue to suit your build aesthetic or to colour-code different wheel positions in an assembly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔇\u003c\/span\u003e\u003cstrong\u003eLow-Noise Rolling\u003c\/strong\u003e — The rubber outer layer dampens contact noise, making these wheels well-suited for indoor furniture, display fixtures, and quiet workshop equipment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\u003cstrong\u003eDrop-In Replacement Fit\u003c\/strong\u003e — Standard bore dimensions allow direct installation onto common axle diameters without machining or adapters in most DIY and light-industrial applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — PU Rubber Coated Ball Bearing Wheels\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial — Outer Shell\u003c\/th\u003e\n\u003ctd\u003ePolyurethane (PU) Rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial — Core\u003c\/th\u003e\n\u003ctd\u003eSteel Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInner Diameter (ID) Range\u003c\/th\u003e\n\u003ctd\u003e5 mm – 10 mm (approx. 0.20\" – 0.39\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter (OD) Range\u003c\/th\u003e\n\u003ctd\u003e16 mm – 40 mm (approx. 0.63\" – 1.57\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eThickness Range\u003c\/th\u003e\n\u003ctd\u003e5 mm – 15 mm (approx. 0.20\" – 0.59\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAvailable Sizes (ID×OD×T)\u003c\/th\u003e\n\u003ctd\u003e5×16×5mm, 5×18×5mm, 6×20×5mm, 8×22×5mm, 8×35×15mm, 10×40×10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eColour Options\u003c\/th\u003e\n\u003ctd\u003eBlack, Transparent, Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Unit\u003c\/th\u003e\n\u003ctd\u003e1 pc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eLoad Capacity\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\u003eWeight (per piece)\u003c\/th\u003e\n\u003ctd\u003eSee 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 for my project?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMatch the Inner Diameter (ID) to your axle or shaft diameter — this is the most critical dimension. Then confirm the Outer Diameter (OD) fits within your track or housing clearance, and check that the Thickness suits your frame spacing. All sizes are listed as ID×OD×Thickness in millimetres on the variant selector.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load can these PU rubber bearings handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eLoad capacity varies by size — larger OD and thicker wheels generally support higher radial loads. These wheels are designed for light-to-medium duty DIY and maker applications such as sliding doors, 3D printer carriages, and display fixtures. For heavy industrial loads, please contact us to confirm suitability for your specific application.\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\u003eThe polyurethane outer shell is resistant to moisture and mild chemicals, making it suitable for indoor environments with occasional humidity exposure. The steel bearing core may be susceptible to rust if submerged or exposed to prolonged moisture. For wet or outdoor environments, we recommend inspecting and lubricating the bearing core periodically.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat tracks or rails are these wheels compatible with?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThese guide wheels work on flat tracks, round rails, and smooth surfaces where the OD makes rolling contact. They are not profiled for V-slot grooves unless the OD is wide enough to span the slot. Always verify that your axle diameter matches the listed ID before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the Black, Transparent, and Blue colour options?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eThe colour difference is in the polyurethane outer shell only — the steel bearing core and dimensional specifications are identical across colours for the same size. Choose based on your build aesthetic or to visually distinguish wheel positions in a multi-wheel assembly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these wheels on a 3D printer or CNC machine?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes — the smaller sizes (5×16×5mm, 5×18×5mm, 6×20×5mm) are commonly used on 3D printer carriage assemblies and lightweight CNC gantries where a smooth, low-noise rolling contact is needed. Confirm the ID matches your carriage bolt or eccentric nut diameter before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these sold as a set or individually?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach listing is for 1 piece (1 pc). If you need multiple wheels for a project, simply adjust the quantity at checkout or select the quantity that matches your build requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your ID×OD×Thickness size and colour above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"10*40*10mm \/ Black \/ 1pcs","offer_id":52410591609106,"sku":"FXLDGZCWJ0570x1","price":6.19,"currency_code":"USD","in_stock":true},{"title":"10*40*10mm \/ Transparent \/ 1pcs","offer_id":52410591641874,"sku":"FXLDGZCWJ0571x1","price":6.19,"currency_code":"USD","in_stock":true},{"title":"5*18*5mm \/ Transparent \/ 1pcs","offer_id":52410591674642,"sku":"FXLDGZCWJ0618x1","price":8.64,"currency_code":"USD","in_stock":true},{"title":"8*22*5mm \/ Black \/ 1pcs","offer_id":52410591707410,"sku":"FXLDGZCWJ0622x1","price":5.15,"currency_code":"USD","in_stock":true},{"title":"8*22*5mm \/ Transparent \/ 1pcs","offer_id":52410591740178,"sku":"FXLDGZCWJ0623x1","price":5.15,"currency_code":"USD","in_stock":true},{"title":"8*35*15mm \/ Blue \/ 1pcs","offer_id":52410591772946,"sku":"FXLDGZCWJ0624x1","price":5.7,"currency_code":"USD","in_stock":true},{"title":"8*35*15mm \/ Transparent \/ 1pcs","offer_id":52410591805714,"sku":"FXLDGZCWJ0625x1","price":5.7,"currency_code":"USD","in_stock":true},{"title":"5*16*5mm \/ Transparent \/ 1pcs","offer_id":52410591838482,"sku":"FXLDGZCWJ1728x1","price":5.15,"currency_code":"USD","in_stock":true},{"title":"6*20*5mm \/ Transparent \/ 1pcs","offer_id":52410591871250,"sku":"FXLGB610-0","price":5.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of7_df5360b4-98de-4764-a1e3-42a94bd364f8.jpg?v=1782478219","url":"https:\/\/homediyer.com\/products\/pu-rubber-coated-ball-bearing-pulley-guide-wheel","provider":"HomeDIYer","version":"1.0","type":"link"}