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Description / Abstract:
This Standard covers standard designs for the following:
(a) plain and thread plug gage blanks to 12.010 in.
maximum gaging diameter
(b) plain and thread ring gage blanks to 12.260 in.
maximum gaging diameter
(c) involute and serrated spline plug and ring gage
blanks to 8.000 in. major diameter
(d) straight-sided spline plug and ring gage blanks to
major diameters of 8.000 in. for plugs and 6.000 in. for rings
(e) machine taper plug and ring gage blanks to 5.000
in. gaging diameter
(f) adjustable snap gages to 12 in.
(g) adjustable length gages to any desired length
(h) master disks up to 8.010 in. in diameter
Recommended general designs covering taper plug and ring gages
for special applications, flush-pin gages, and flat plug gages are
also included.
This Standard is intended to deal only with the dimensions of
blanks, frames, and fittings. However, it is expected that gages
made from these blanks shall be finished in accordance with
accepted good gage making practice with respect to accuracy and
workmanship.
NOTES:
(1) While compliance to the revised specifications in this
document is urged as soon as possible, the use of blanks and
designs in ASME/ANSl B47.1-1988 is permissible for a period of 5
years from approval date of this document.
(2) Types of steel or other material for gage blanks and
components are not standardized in this document. The type of
material and hardness should be agreed upon by producer and user of
the gages.
(3) Certain tables in this document show both nominal thread
ranges as well as decimal ranges. In such cases, the decimal range
establishes the official dividing line from one blank or handle
size to the next.
(4) The following designates correct blank size to use:
(a) thread plugs—go actual major
(b) plain plugs—no go major
(c) thread rings—go actual major
(d) plain rings—go gage/dimensions