): This specific groove size is generally recommended for workpieces with diameters .
However, without a direct reference or more context, it's challenging to provide a detailed write-up on this specific designation. Nonetheless, I can offer a general approach to understanding what such a designation might imply and how one might go about writing about it.
Where a bearing, gear, or flange must sit perfectly flush against a shaft shoulder, ensuring the corner of the mated part does not interfere with the radius of the shaft corner.
Sharp 90-degree transitions create severe stress concentrations. Under cyclic mechanical loads, these corners act as crack initiation sites, leading to sudden fatigue failure. The 0.6 mm radius transitions the grain structure of the metal smoothly, dispersing stress lines and vastly improving the fatigue life of the shaft. din 509e06x02 exclusive
: Specifies a form intended for workpieces where the planar surface (shoulder) is not subjected to high fatigue loads and does not require special treatment. It is primarily used when the cylindrical surface may need further machining but the shoulder does not. : This value represents the of the undercut in millimeters. : This value represents the of the recess in millimeters. Key Specifications Description The curvature at the bottom of the groove. The penetration depth into the workpiece. Surface Roughness (Standard) Standard roughness is typically unless otherwise specified. Application Rotational Parts
: Products adhering to such high standards might have limited availability or be more expensive, potentially limiting access for some customers.
: The standard titled Technical drawings - Undercuts - Types and dimensions . It defines standardized grooves used to provide clearance for subsequent machining operations (like grinding) or to ensure mating parts seat properly against a shoulder. ): This specific groove size is generally recommended
The "06x02" refers to the specific dimensions (typically 6mm x 2mm, though context-dependent), and the term "Exclusive" suggests a proprietary, enhanced, or specialty version of this standard, often tailored for: Higher material strength. Specific surface treatments (coatings). Greater tolerance precision. Technical Specifications and Key Features
The defines the shape, dimensions, and tolerances for undercuts, which are essential for ensuring that mating parts can be assembled properly without interference from corner radii.
The larger, defined radius is easier for QA/QC inspectors to measure on optical comparators compared to smaller radii. Where a bearing, gear, or flange must sit
The dimensional accuracy of the 06x02 specifications is maintained at a tighter tolerance (e.g.,
If you are looking for a physical object based on the code , it is most likely a precision shaft or a shoulder on a mechanical component that features a specific Undercut Type E, Width 0.6mm, Depth 0.2mm , ground to a finish of Ra 0.8 or finer (typical for DIN 509 applications).
For this specific size, the standard typically specifies the following additional dimensions to ensure proper tool clearance: Value (mm) Depth Breadth (Width) Run-out Angle 15° (Standard for Type E) Application Guidelines Workpiece Diameter (
, this specific size is typically recommended for workpieces with a diameter range of 10mm to 18mm Specification Form E (Single surface) Applicable Diameters Standard Roughness (unless specified otherwise) Why Use an E0.6x0.2 Undercut?
In technical drawings, an undercut is a clearance groove at the inner corner of a rotationally symmetric part. The variant is specifically designed for workpieces where: cylindrical surface is intended for subsequent machining (like grinding). planar surface