<h2>Overview</h2>
<p>The <strong>Rexnord 7379234 ES20-R</strong> is a replacement flexible spacer element for the Rexnord Omega elastomeric coupling family. <cite index="10-10">The "R" suffix designates high speed ring design</antml:cite>, making this element suitable for high-RPM shaft drive applications.</p>
<h2>Key Features</h2>
<ul>
<li><cite index="8-1">Unique split-in-half flex element design reduces inventory and assembly time</cite></li>
<li><cite index="8-4">High-misalignment capacity accommodates unavoidable misalignment with low reactionary forces</cite></li>
<li><cite index="8-5">Torsionally soft flex element cushions shock loads and vibration, extending equipment life</cite></li>
<li><cite index="8-7">Optional hole mounting positions and reversible hubs allow adjustment to accommodate most shaft spacing requirements</cite></li>
<li>Non-lubricated design—no ongoing maintenance or oil replacement needed</li>
</ul>
<h2>Technical Specifications</h2>
<p>The ES20-R element is engineered to deliver reliable performance across demanding industrial environments with the following verified specifications:</p>
<ul>
<li><strong>Element Type:</strong> <cite index="9-2">Flexible portion of an Omega coupling (includes mounting shoes and hardware)</cite></li>
<li><strong>Coupling Size:</strong> Size 20 (ES20-R)</li>
<li><strong>Material:</strong> Polyurethane</li>
<li><strong>Maximum Torque Rating:</strong> 2300 in-lbs</li>
<li><strong>Maximum Speed:</strong> 6600 RPM</li>
<li><strong>Outside Diameter:</strong> 7-1/4"</li>
<li><strong>Between Shaft Ends:</strong> 2.55"</li>
<li><strong>Weight:</strong> 3.67 kg (8.1 lbs)</li>
</ul>
<h2>Typical Applications</h2>
<p>Rexnord Omega spacer elements are deployed across a wide range of industrial machinery and equipment:</p>
<ul>
<li>Centrifugal pumps and blowers</li>
<li>Compressors and air handling systems</li>
<li>Motor-to-gearbox drive connections</li>
<li>Paper, textile, and food processing equipment</li>
<li>HVAC and industrial ventilation systems</li>
<li>General industrial power transmission</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Rexnord Omega elastomeric coupling hubs (Size 20)</li>
<li>Rexnord ES20 and ES20-R coupling systems</li>
<li>Industrial shaft drive systems requiring flexible coupling elements</li>
<li>Standard industrial mounting shoe configurations</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Rexnord ES20-R (high-speed variant)</li>
<li>Original Rexnord ES20 spacer element components</li>
<li>Part number 7300100R</li>
</ul>
<h3>Works With</h3>
<ul>
<li>Rough bore, custom bore, and bushed hub configurations</li>
<li>Optional high-speed ring assemblies</li>
<li>AGMA 9002 standard flexible coupling installations</li>
<li>Class 1 clearance fit finished bore hubs</li>
</ul>
