Product description

The worm-screw assembly with supports is a high-torque mechanical drive unit used in the carriage and tool-arm positioning systems of Snap-On tire changers. It provides the precision linear movement required to adjust the mounting head position with extreme accuracy, which is essential for working on sensitive alloy wheels. The assembly includes a precision-threaded screw and high-quality bearing supports that ensure smooth rotation and consistent performance under the heavy mechanical loads of tire service. Over time, the threads of the worm screw can wear, or the supports can lose their alignment, leading to "play" in the tool head that can compromise the safety and accuracy of the machine. Replacing the entire assembly with this genuine Snap-On component restores the factory-level precision and stability of your tire changer, ensuring professional results on every job.

Product highlights

• Provides precision linear movement for mounting head positioning.
• High-torque mechanical design built for industrial-grade service.
• Includes precision-threaded screw and integrated bearing supports.
• Eliminates mechanical play to restore factory-level accuracy.
• Built to withstand the heavy loads and vibrations of a tire shop.

Specs

• Manufacturer: Snap-On
• Manufacturer Part Number: ST4015483

Direct replacement models

Compatible with Snap-On and John Bean tire changers using ST4015483.

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.