FYH ZK12

<h2>FYH Z-Lock Adapter Sleeve 2-1/8 inch ZK12</h2> <h3>Description</h3> <p>This is a high-quality Z-Lock adapter sleeve, model ZK12, from FYH. It is designed to mount bearings with a tapered bore onto a cylindrical shaft with a 2-1/8 inch diameter. The Z-Lock mechanism provides a powerful and concentric 360-degree grip, ensuring secure mounting, reduced vibration, and prevention of shaft damage during installation and operation.</p> <h3>Specifications</h3> <ul> <li>Brand: FYH</li> <li>Model: ZK12</li> <li>Type: Z-Lock Adapter Sleeve</li> <li>Shaft Diameter: 2-1/8 inch (approx. 53.975 mm)</li> <li>Material: Steel</li> </ul> <h3>Label Info</h3> <ul> <li>Manufacturer: FYH Inc., Japan</li> <li>Part Number: 9100004585-00390</li> </ul> <h3>Application</h3> <p>This adapter sleeve is widely used in industrial machinery, conveyor systems, agricultural equipment, and other applications requiring reliable shaft-to-bearing locking without the use of special tools or shaft modifications.</p> <h3>Country of Origin</h3> <p>Manufactured in Japan by FYH Inc.</p> <h3>CO2 Impact</h3> <p>By purchasing this pre-owned item, you are contributing to a circular economy and helping to avoid 2.1 kg of CO2 emissions, which is equivalent to the emissions from manufacturing a new unit.</p> <h3>Availability</h3> <p>This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.</p> <h3>FAQ</h3> <strong>What is the primary advantage of the FYH Z-Lock system compared to a standard set screw bearing?</strong><br><p>The Z-Lock provides a 360-degree concentric grip on the shaft, which minimizes fretting corrosion, reduces vibration, and allows for higher running speeds compared to the point-contact of set screws.</p> <strong>Can the ZK12 sleeve be used with any bearing that has a tapered bore?</strong><br><p>No, the ZK12 is specifically designed to work with FYH bearing inserts that are compatible with the Z-Lock system. The taper and dimensions are proprietary to ensure a perfect fit and locking action.</p> <strong>What is the correct procedure for tightening the ZK12 adapter sleeve?</strong><br><p>The ZK12 features cap screws on the flange. These should be tightened incrementally and evenly to the manufacturer’s specified torque value to draw the sleeve into the bearing bore, ensuring a uniform clamp on the shaft. Always refer to the FYH installation guide for exact torque specifications.</p> <p><em>spareparts2day is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners.</em></p> <p>Last Update: Friday, March 13, 2026</p>