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The JACOBS JCM5506 is a replacement drill chuck sleeve designed for use with 1/2 inch ball bearing drill chucks. This sleeve provides the outer housing that supports proper chuck function and maintains structural integrity during drilling operations. Compatible with Chuck No. 14N, it serves as a direct replacement component when the original sleeve is worn, damaged, or lost. Installation is handled by machinists, tool repair technicians, and trade professionals who service and maintain drilling equipment in shop or field environments. At 0.9 pounds, the part is compact and designed to integrate seamlessly with the correct chuck assembly.
This sleeve is intended for use specifically with the JACOBS 14N series 1/2 inch ball bearing drill chuck. It is suited for repair and maintenance applications in manufacturing, machining, electrical, and general construction trades where 1/2 inch ball bearing chucks are standard equipment. Replacing a worn sleeve restores chuck concentricity and grip performance, extending the service life of the overall chuck assembly rather than requiring full chuck replacement.
Compatible with JACOBS Chuck No. 14N. Designed for use with 1/2 inch ball bearing drill chucks. Model number reference: S14N.
Chuck sleeve replacement should be performed by a qualified machinist or tool repair technician familiar with drill chuck disassembly procedures. Ensure the drill or press is fully powered down and unplugged before beginning any chuck service work. Use appropriate press or chuck key tooling to remove and reseat sleeve components without damaging internal bearing races or jaws. Follow the chuck manufacturer's service documentation for reassembly sequence and inspection steps.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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