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Sleeve and Retaining-Ring Examples

CNC Turned Part Examples

Two precision turning examples showing why mating faces, grooves and locating features matter beyond dimensional size.

Proceso
CNC turning reviewed around seating and retention features
Materiales
Use the grade and condition specified on each drawing
Cantidad
State the quantity for each part and any assembly-check needs
Inspección
Check the sleeve seat or the pin’s assembled travel as specified

Product Overview

CNC turning is used for a wide variety of rotational parts. The following illustrative examples demonstrate how seemingly simple features influence assembly and function.

Key Features

  • A flanged sleeve may use its internal bore to guide a shaft, while the flange seats against a housing.
  • The groove width, depth and axial position affect ring engagement and the available movement relative to the mating stop.

Manufacturing Considerations

  • The transition between the sleeve body and flange can affect installation.
  • Review the mating geometry, seating face and root transition together.

Control de calidad & Inspección

  • Both examples demonstrate that a correct diameter alone does not establish an acceptable assembly.
  • The inspection plan should reflect the feature that controls the installed position, movement or retention of the component.
  • Functional checks are included when specified and agreed for the project.
  • Inspection focus: Bore size, flange seating surface, relevant feature relationships and specified assembly fit.
  • Inspection focus: Groove geometry, reference-face location and the specified assembled travel condition.

Specifications to Confirm

Sleeve bore and flangeConfirm bore size, flange root relief and the housing seating surface.
Groove geometrySpecify ring size, groove width, depth and axial location.

Assembly Considerations

Example 1: Flanged Sleeve

If the flange root radius interferes with the housing's entry chamfer or relief, the flange may fail to seat fully, even when the bore and outside diameter meet their limits.

Example 2: Grooved Pin

A grooved pin may use a retaining ring to limit axial movement. Check the loaded groove flank from the designated reference face, and account for permitted ring and groove clearances when evaluating axial play.

Discuss Your Turned Parts

Provide the component drawing and relevant mating details, including critical fits, locating surfaces, retaining features and assembly tolerances.