{"product_id":"nsk-uc204-12-pillow-block-bearing-unit-3-4-shaft-support","title":"NSK UC204-12 Pillow Block Bearing Unit – 3\/4″ Shaft Support","description":"\u003cp data-start=\"101\" data-end=\"501\"\u003eThe \u003cstrong data-start=\"105\" data-end=\"147\"\u003eNSK UC204-12 Bearing Pillow Block Unit\u003c\/strong\u003e is a \u003cstrong data-start=\"153\" data-end=\"181\"\u003emounted bearing assembly\u003c\/strong\u003e designed to support rotating shafts in industrial equipment. It combines a precision \u003cstrong data-start=\"267\" data-end=\"299\"\u003eUC204-12 insert ball bearing\u003c\/strong\u003e with a \u003cstrong data-start=\"307\" data-end=\"331\"\u003epillow block housing\u003c\/strong\u003e (often referenced as \u003cstrong data-start=\"353\" data-end=\"366\"\u003eUCP204-12\u003c\/strong\u003e) for easy installation, reliable performance, and long service life in medium-duty applications. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"503\" data-end=\"506\"\u003e\n\u003ch2 data-start=\"508\" data-end=\"531\"\u003e\u003cstrong data-start=\"511\" data-end=\"531\"\u003eProduct Overview\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"533\" data-end=\"854\"\u003eA \u003cstrong data-start=\"535\" data-end=\"559\"\u003ebearing pillow block\u003c\/strong\u003e (also called a \u003cem data-start=\"575\" data-end=\"590\"\u003eplummer block\u003c\/em\u003e) consists of a \u003cstrong data-start=\"606\" data-end=\"624\"\u003ebearing insert\u003c\/strong\u003e mounted inside a rigid housing that can be bolted to a frame or support surface. The UC204-12 model features a \u003cstrong data-start=\"736\" data-end=\"764\"\u003eset-screw locking insert\u003c\/strong\u003e which helps secure the bearing to a rotating shaft. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"856\" data-end=\"879\"\u003e\u003cstrong data-start=\"860\" data-end=\"879\"\u003eCore Components\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"880\" data-end=\"1173\"\u003e\n\u003cli data-start=\"880\" data-end=\"1003\"\u003e\n\u003cp data-start=\"882\" data-end=\"1003\"\u003e\u003cstrong data-start=\"882\" data-end=\"901\"\u003eBearing Insert:\u003c\/strong\u003e UC204-12 insert bearing with set screws for locking to shaft. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1004\" data-end=\"1173\"\u003e\n\u003cp data-start=\"1006\" data-end=\"1173\"\u003e\u003cstrong data-start=\"1006\" data-end=\"1031\"\u003ePillow Block Housing:\u003c\/strong\u003e Cast iron housing (commonly P204 or equivalent) that protects the bearing and provides mounting points. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1175\" data-end=\"1178\"\u003e\n\u003ch2 data-start=\"1180\" data-end=\"1205\"\u003e\u003cstrong data-start=\"1183\" data-end=\"1205\"\u003eKey Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1206\" data-end=\"1299\"\u003e\u003cem data-start=\"1206\" data-end=\"1299\"\u003e(Typical for UC204-12 pillow block units — actual values may vary slightly by manufacturer)\u003c\/em\u003e\u003c\/p\u003e\n\u003cul data-start=\"1301\" data-end=\"2268\"\u003e\n\u003cli data-start=\"1301\" data-end=\"1377\"\u003e\n\u003cp data-start=\"1303\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1303\" data-end=\"1328\"\u003eInsert Bearing Model:\u003c\/strong\u003e UC204-12 \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1378\" data-end=\"1466\"\u003e\n\u003cp data-start=\"1380\" data-end=\"1466\"\u003e\u003cstrong data-start=\"1380\" data-end=\"1406\"\u003eBore (Shaft Diameter):\u003c\/strong\u003e \u003cstrong data-start=\"1407\" data-end=\"1426\"\u003e3\/4″ (19.05 mm)\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1467\" data-end=\"1546\"\u003e\n\u003cp data-start=\"1469\" data-end=\"1546\"\u003e\u003cstrong data-start=\"1469\" data-end=\"1499\"\u003eOuter Diameter of Bearing:\u003c\/strong\u003e ~47 mm \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1547\" data-end=\"1614\"\u003e\n\u003cp data-start=\"1549\" data-end=\"1614\"\u003e\u003cstrong data-start=\"1549\" data-end=\"1567\"\u003eBearing Width:\u003c\/strong\u003e ~17 mm \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1615\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1617\" data-end=\"1706\"\u003e\u003cstrong data-start=\"1617\" data-end=\"1634\"\u003eHousing Type:\u003c\/strong\u003e 2-bolt Pillow Block (cast iron) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1707\" data-end=\"1783\"\u003e\n\u003cp data-start=\"1709\" data-end=\"1783\"\u003e\u003cstrong data-start=\"1709\" data-end=\"1728\"\u003eHousing Length:\u003c\/strong\u003e ~5.0″ (127 mm) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1784\" data-end=\"1863\"\u003e\n\u003cp data-start=\"1786\" data-end=\"1863\"\u003e\u003cstrong data-start=\"1786\" data-end=\"1804\"\u003eCenter Height:\u003c\/strong\u003e ~1-5\/16″ (33 mm) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1864\" data-end=\"1947\"\u003e\n\u003cp data-start=\"1866\" data-end=\"1947\"\u003e\u003cstrong data-start=\"1866\" data-end=\"1889\"\u003eBolt Hole Distance:\u003c\/strong\u003e ~3-3\/4″ (95 mm) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1948\" data-end=\"2011\"\u003e\n\u003cp data-start=\"1950\" data-end=\"2011\"\u003e\u003cstrong data-start=\"1950\" data-end=\"1961\"\u003eWeight:\u003c\/strong\u003e ~0.7 kg \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2012\" data-end=\"2107\"\u003e\n\u003cp data-start=\"2014\" data-end=\"2107\"\u003e\u003cstrong data-start=\"2014\" data-end=\"2033\"\u003eLocking Device:\u003c\/strong\u003e Set screws on insert inner ring \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2108\" data-end=\"2183\"\u003e\n\u003cp data-start=\"2110\" data-end=\"2183\"\u003e\u003cstrong data-start=\"2110\" data-end=\"2131\"\u003eHousing Material:\u003c\/strong\u003e Cast iron \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2184\" data-end=\"2268\"\u003e\n\u003cp data-start=\"2186\" data-end=\"2268\"\u003e\u003cstrong data-start=\"2186\" data-end=\"2207\"\u003eBearing Material:\u003c\/strong\u003e Chrome steel (GCr15) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2270\" data-end=\"2273\"\u003e\n\u003ch2 data-start=\"2275\" data-end=\"2301\"\u003e\u003cstrong data-start=\"2278\" data-end=\"2301\"\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2303\" data-end=\"3191\"\u003e\u003cstrong data-start=\"2303\" data-end=\"2339\"\u003e✔ Complete Pillow Block Assembly\u003c\/strong\u003e – Bearing insert paired with housing for quick, secure mounting. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2444\" data-end=\"2447\"\u003e\u003cstrong data-start=\"2447\" data-end=\"2476\"\u003e✔ Set Screw Shaft Locking\u003c\/strong\u003e – Insert bearing locks to shaft easily using set screws. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2573\" data-end=\"2576\"\u003e\u003cstrong data-start=\"2576\" data-end=\"2603\"\u003e✔ Self-Aligning Support\u003c\/strong\u003e – Ball bearing insert accommodates slight shaft misalignment. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2705\" data-end=\"2708\"\u003e\u003cstrong data-start=\"2708\" data-end=\"2734\"\u003e✔ Durable Construction\u003c\/strong\u003e – Cast iron housing and chrome-steel insert for use in industrial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"2854\" data-end=\"2857\"\u003e\u003cstrong data-start=\"2857\" data-end=\"2894\"\u003e✔ Easy Installation \u0026amp; Replacement\u003c\/strong\u003e – Housing mounts with two bolts; insert can be replaced separately if needed. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003cbr data-start=\"3012\" data-end=\"3015\"\u003e\u003cstrong data-start=\"3015\" data-end=\"3050\"\u003e✔ Moderate Load \u0026amp; Speed Support\u003c\/strong\u003e – Suitable for conveyors, rollers, fans, and general shaft support where moderate loads are present. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"3193\" data-end=\"3196\"\u003e\n\u003ch2 data-start=\"3198\" data-end=\"3225\"\u003e\u003cstrong data-start=\"3201\" data-end=\"3225\"\u003eTypical Applications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3226\" data-end=\"3325\"\u003eThe UC204-12 pillow block bearing unit is widely used in industrial and mechanical systems such as:\u003c\/p\u003e\n\u003cul data-start=\"3327\" data-end=\"3812\"\u003e\n\u003cli data-start=\"3327\" data-end=\"3406\"\u003e\n\u003cp data-start=\"3329\" data-end=\"3406\"\u003e\u003cstrong data-start=\"3329\" data-end=\"3364\"\u003eConveyor rollers \u0026amp; belt systems\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3407\" data-end=\"3482\"\u003e\n\u003cp data-start=\"3409\" data-end=\"3482\"\u003e\u003cstrong data-start=\"3409\" data-end=\"3440\"\u003eMaterial handling equipment\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3483\" data-end=\"3560\"\u003e\n\u003cp data-start=\"3485\" data-end=\"3560\"\u003e\u003cstrong data-start=\"3485\" data-end=\"3518\"\u003eAgricultural machinery shafts\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3561\" data-end=\"3639\"\u003e\n\u003cp data-start=\"3563\" data-end=\"3639\"\u003e\u003cstrong data-start=\"3563\" data-end=\"3597\"\u003eFans, blowers \u0026amp; HVAC equipment\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3640\" data-end=\"3715\"\u003e\n\u003cp data-start=\"3642\" data-end=\"3715\"\u003e\u003cstrong data-start=\"3642\" data-end=\"3673\"\u003ePumps, compressors \u0026amp; mixers\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3716\" data-end=\"3812\"\u003e\n\u003cp data-start=\"3718\" data-end=\"3812\"\u003e\u003cstrong data-start=\"3718\" data-end=\"3772\"\u003eGeneral rotating shafts with moderate radial loads\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3814\" data-end=\"3817\"\u003e\n\u003ch2 data-start=\"3819\" data-end=\"3838\"\u003e\u003cstrong data-start=\"3822\" data-end=\"3838\"\u003eHow It Works\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3839\" data-end=\"4237\"\u003eThe \u003cstrong data-start=\"3843\" data-end=\"3872\"\u003einsert bearing (UC204-12)\u003c\/strong\u003e supports the \u003cstrong data-start=\"3886\" data-end=\"3904\"\u003erotating shaft\u003c\/strong\u003e, while the \u003cstrong data-start=\"3916\" data-end=\"3934\"\u003ehousing (P204)\u003c\/strong\u003e provides a secure mounting platform. Set screws on the insert's inner ring clamp the bearing to the shaft so it stays fixed during rotation. The pillow block unit can be bolted to machine frames, mounts, or substructures to support horizontal shafts in position. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"4239\" data-end=\"4242\"\u003e\n\u003ch2 data-start=\"4244\" data-end=\"4269\"\u003e\u003cstrong data-start=\"4247\" data-end=\"4269\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"4271\" data-end=\"4717\"\u003e\n\u003cli data-start=\"4271\" data-end=\"4391\"\u003e\n\u003cp data-start=\"4273\" data-end=\"4391\"\u003eEnsure the \u003cstrong data-start=\"4284\" data-end=\"4302\"\u003eshaft diameter\u003c\/strong\u003e matches the \u003cstrong data-start=\"4315\" data-end=\"4328\"\u003e3\/4″ bore\u003c\/strong\u003e before installation. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4392\" data-end=\"4484\"\u003e\n\u003cp data-start=\"4394\" data-end=\"4484\"\u003eTighten set screws evenly to avoid shaft damage. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4485\" data-end=\"4611\"\u003e\n\u003cp data-start=\"4487\" data-end=\"4611\"\u003eUse grease fitting (if present) for periodic relubrication to extend bearing life. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4612\" data-end=\"4717\"\u003e\n\u003cp data-start=\"4614\" data-end=\"4717\"\u003eMount housing using correct bolt size for stable performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Win Auto Parts","offers":[{"title":"Default Title","offer_id":42087153401954,"sku":"25650-NSK-BEA-MM","price":0.0,"currency_code":"MMK","in_stock":false}],"url":"https:\/\/winstores.com\/products\/nsk-uc204-12-pillow-block-bearing-unit-3-4-shaft-support","provider":"Win Store","version":"1.0","type":"link"}