Acme Thread Gauges and Stub Acme Thread Gages

ACME Thread Gages and Stub Acme Thread Gages.
The Major and Minor Diameter allowances for Stub Acme threads are the same as those given for General Purpose Acme threads. Pitch Diameter allowances for Stub Acme threads are the same as for Class 2G General Purpose  Stub Acme thread Plug Gages and Ring Gages are used for thin walled applications, where coarse pitch is needed like tubes used in Oil fields equipments, where standard ACME threads can not be used due to thin wall.

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Specification:

  • 3 classes of fit – 2G, 3G, 4G
  • Centralizing ACME threads classes of fit:: 2C, 3C, 4C
  • Stub ACME Thread Plug Gages and Stub Acme Thread Ring Gauges
  • ACME thread ring gages compliant to ASME B1.5-1997
  • ACME thread ring gage lengths and blank standards compliant to ASME B47.1
  • Thread Plugs
  • Thread Rings
  • Check Plugs & Wear Check Plugs

 

Click below to download Acme Thread Gages vs Stub Acme Thread Gages

Acme vs Stub Acme_20161215083528

An ACME thread has a screw thread profile with trapezoidal outlines and they are commonly used where large loads or high accuracy are required; for example, in a vice or lead screw. The ACME thread has a 29-degree thread angle with a thread height half of the pitch (P/2) and where the apex and valley are flat. An ACME thread profile is typically easier to manufacture than other thread series. This thread form also allows for the use of a split nut, which minimizes nut wear, however, the radial load on the nut is greater thus minimizing efficiency. Similar thread series are the square thread and buttress thread.

ANSI ASME B1.5 Acme standard

 


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