<h2>Overview</h2>
<p>The <strong>Kop-Flex 1964113</strong> is a high-torque (HT) disc pack assembly manufactured by Rexnord for use with KD series flexible couplings. This 254-size, 8-bolt scalloped design integrates with standard KD11, KD20, KD21, KD22, KD04, KD41, and KD42 non-lubricated stainless steel couplings. The unitized disc pack provides robust power transmission with minimal maintenance in pump, compressor, and industrial motor applications.</p>
<h2>Key Features</h2>
<ul>
<li><strong>High-Torque Rating:</strong> 52,000 in-lb capacity for medium and heavy-duty service</li>
<li><strong>Non-Lubricated Design:</strong> Elimmates ongoing grease and maintenance cost, ideal for sealed or food-grade environments</li>
<li><strong>8-Bolt Scalloped Configuration:</strong> Compact design facilitates quick installation and disc pack replacement without equipment removal</li>
<li><strong>Proven Compatibility:</strong> Drop-in replacement for existing KD-series coupling installations across multiple styles</li>
<li><strong>Dynamic Balance:</strong> Unitized assembly and close-tolerance bolts ensure consistent performance and longer bearing life</li>
</ul>
<h2>Technical Specifications</h2>
<ul>
<li><strong>Part Number:</strong> 1964113</li>
<li><strong>Coupling Size:</strong> 254 KD HTDP</li>
<li><strong>Torque Capacity:</strong> 52,000 in-lb</li>
<li><strong>Bolt Configuration:</strong> 8-bolt hole scalloped</li>
<li><strong>Type:</strong> High-torque disc pack assembly</li>
<li><strong>Lubrication:</strong> Non-lubricated</li>
<li><strong>Material:</strong> Stainless steel disc elements</li>
<li><strong>Manufacturer:</strong> Rexnord (Kop-Flex brand)</li>
<li><strong>UPC:</strong> 662384136784</li>
</ul>
<h2>Typical Applications</h2>
<ul>
<li>Centrifugal and reciprocating pump drives (API 610 compliance)</li>
<li>Screw and reciprocating compressor coupling assemblies</li>
<li>Heavy-duty fan and blower systems</li>
<li>Industrial motor-to-driven-equipment connections requiring high torque and minimal backlash</li>
<li>Paper, steel, and chemical processing equipment</li>
<li>Sealed or food-grade environments where grease contamination is unacceptable</li>
</ul>
<h2>Compatibility & Replacements</h2>
<h3>Compatible With</h3>
<ul>
<li>Kop-Flex KD11 series non-lubricated disc couplings</li>
<li>Kop-Flex KD20 heavy-duty spacer couplings</li>
<li>Kop-Flex KD21 economical spacer couplings</li>
<li>Kop-Flex KD22, KD04, KD41, and KD42 variants</li>
<li>API 610 / ISO 13709 compliant pump systems</li>
</ul>
<h3>Replaces / Drop-In Replacement For</h3>
<ul>
<li>Existing Kop-Flex 254 KD HTDP disc pack assemblies</li>
<li>OEM coupling disc packs rated for KD-series installations</li>
<li>High-torque disc packs in 254-size pump and compressor couplings</li>
</ul>
<h3>Works With</h3>
<ul>
<li>ANSI/AGMA 9002 standard keyed bores</li>
<li>Keyless hub designs (contact Kop-Flex for specifications)</li>
<li>Tapered or straight keyed shaft connections</li>
<li>Coupling monitoring systems and torque measurement equipment</li>
</ul>
