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Description
Sherline Resettable Handwheel Instructions
Upgrade handwheels to reset to zero easily
Replace 1⅝” wheels with 2" adjustable ones
Avoid using 2½” wheels on lathe leadscrew and tailstock
Choose inch or metric versions for precision
Install 2½” wheels with ball thrust for Z-axis
The Sherline Resettable Handwheel Instructions provide guidance on upgrading miniature machine tools with the capability to reset the handwheel to "zero" or any desired setting during machining operations. This feature, commonly found in full-size machine tools, is now accessible for Sherline's compact models. The installation process is straightforward, requiring only the release of a set screw to replace the standard handwheels. The operation involves releasing a locking nut, adjusting the red handwheel collar to "zero," and retightening the nut, allowing precise control over the feed amount without complex calculations.
The instructions detail the compatibility of various handwheel sizes, noting that standard 1⅝” handwheels can be upgraded to 2” adjustable versions. However, caution is advised against using larger 2½” handwheels on both the lathe leadscrew and tailstock simultaneously due to potential interference, though they are suitable for other applications. Both inch and metric versions are available to accommodate different measurement preferences.
Additionally, a specialized 2½” diameter handwheel is designed for the Z-axis of the mill or vertical milling column, featuring a ball thrust bearing set to alleviate stress from the vertical lifting action. This component is standard on newer machines, while older models can be retrofitted with this upgrade. The engraved numbers on the collars are oriented for optimal readability depending on the axis of installation, ensuring ease of use across different machine configurations.
All standard 1⅝” handwheels can be replaced with 2″ adjustable handwheels
Larger 2½” handwheels are not recommended for use on both the lathe leadscrew and tailstock together due to interference but can be used elsewhere
Both inch and metric versions are available
A special 2½” diameter handwheel is available for the Z-axis of the mill or vertical milling column
Newer machines come with this special 2½” handwheel, which includes a ball thrust bearing set to relieve stress from the lifting action of the vertical Z-axis