{"product_id":"comh20t-replacement-uniball-bearing-1-25-uca-spherical-bearing","title":"COMH20T Replacement Uniball Bearing - 1.25\" UCA Spherical Bearing","description":"\u003cdiv\u003e\n\u003cp\u003e\u003cspan\u003eService your UCA instead of replacing the entire arm. This COMH20T 1.25-inch replacement uniball restores smooth, precise articulation in compatible RRW upper control arms and other aftermarket or custom-fabricated UCA assemblies built around the same bearing dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eService Your UCA. Keep the Arm.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA worn uniball does not mean your entire upper control arm is finished.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe COMH20T is a serviceable, PTFE-lined spherical bearing commonly used in off-road upper control arms, long-travel suspension systems, custom A-arms and fabrication projects. It replaces the wearable joint inside compatible RRW UCAs and many other aftermarket control arms using the same 1.25-inch bore and 2.375-inch outside diameter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhether you call it a uniball, uni-ball or spherical plain bearing, this is the replacement component that restores tight, smooth suspension movement without purchasing a complete new UCA.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eProduct Highlights\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplacement COMH20T spherical bearing for compatible serviceable UCAs\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1.250-inch bore and 2.375-inch outside diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFits compatible RRW 1.25-inch uniball applications\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eCommonly used by aftermarket UCA manufacturers and custom fabricators\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePTFE-lined for smooth, low-friction articulation\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eHard-chrome-plated, heat-treated steel ball\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e17-degree maximum total ball swivel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eReplaceable wear component helps extend the service life of the control arm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eSuitable for off-road suspension, long-travel and custom fabrication projects\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eDimensions and Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBearing designation: COMH20T\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBore diameter: 1.2500\" +0.0025\"\/-0.0005\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOutside diameter: 2.3750\" +0.0000\"\/-0.0007\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eInner-ring width: 1.187\" ±0.005\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOuter-race width: 0.937\" ±0.005\"\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eFace diameter: 1.610\" reference\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBall diameter: 2.000\" reference\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMaximum swivel: 17 degrees total, ±8.5 degrees\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eBall material: heat-treated 52100 steel, hard chrome plated\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eRace material: low-carbon steel\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eLiner: PTFE fabric\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eUltimate static radial load: 100,730 lbf\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eApproximate weight: 0.895 lb\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eFitment\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis bearing fits upper control arms and custom bearing cups specifically designed for COMH20T dimensions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFitment is determined by the bearing dimensions and retention method—not the vehicle or UCA brand alone. Before ordering, verify the number marked on the existing bearing or confirm all critical measurements:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1.250-inch bore\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e2.375-inch outside diameter\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e1.187-inch inner-ring width\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003e0.937-inch outer-race width\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFor RRW upper control arms, confirm that your specific application uses the 1.25-inch uniball. Some RRW applications use a larger 1.5-inch bearing, and this COMH20T will not fit those arms.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOther manufacturers may use proprietary bearing cups, retaining rings, spacers or dimensional variations. Matching the bore alone does not guarantee fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhat Is Included\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eOne COMH20T replacement spherical bearing\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eDust boot, retaining ring, misalignment spacers and mounting hardware are not included unless specifically selected or stated elsewhere on the page.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eProfessional installation is recommended. Removal and installation procedures vary by control-arm manufacturer and may require a press and retaining-ring tools.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInspect the bearing cup, retaining ring, dust boot, spacers and mounting hardware before installing the new bearing. Apply press force only where directed by the control-arm or bearing manufacturer. Do not press through the inner ball or damage the PTFE liner.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFollow the UCA manufacturer’s torque specifications and have the suspension alignment checked after service when appropriate.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch1\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h1\u003e\n\u003ch2\u003e\u003cspan\u003eWill this fit my RRW upper control arms?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eIt fits compatible RRW UCAs that use a 1.25-inch COMH20T uniball. It does not fit RRW applications equipped with a 1.5-inch uniball. Verify the existing bearing number or dimensions before ordering.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWill it fit upper control arms from another brand?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003ePossibly. COMH20T is a common bearing configuration used by multiple aftermarket UCA manufacturers and custom fabricators. Fitment must be confirmed by matching the bore, outside diameter, widths and retention method.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eIs this bearing greasable?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe COMH20T uses a PTFE liner and does not use lubrication grooves or a grease fitting. Do not apply grease directly to the PTFE bearing liner unless instructed by the bearing manufacturer.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1061\/0094\/files\/6256245672.png?v=1787712968\" alt=\"\"\u003e\u003c\/p\u003e","brand":"RRW Relations Race Wheels","offers":[{"title":"Default Title","offer_id":42649737265234,"sku":null,"price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1061\/0094\/files\/H23bf129e31564aa09f20401e5b5b15ed4.avif?v=1787712968","url":"https:\/\/www.relationsracewheels.com\/products\/comh20t-replacement-uniball-bearing-1-25-uca-spherical-bearing","provider":"RRW Relations Race Wheels","version":"1.0","type":"link"}