亲您好，根据提供的信息，可以看出这是一个螺纹规格的描述，具体含义如下：2.75 表示螺纹的直径为2.75英寸（inches）6 TPI 表示每英寸有6个螺纹（Threads Per Inch）ACME 表示螺纹类型为ACME型，是一种梯形螺纹-2G 表示螺纹的精度等级，其中G代表General，-2表示公差范围为-0.013mm到-0.038mm 亲您...
4.125-8STUB ACME-2G 环规和塞规尺寸 RING GAGE Half Angle: ?0 Deg 8 Min GO Tols NOGO Tols Pitch Diameter 4.0715-0.0008 4.0487+0.0008 Major Diameter 4.1350+0.0020 4.1350+0.0020 Minor Diameter 4.0400-0.0020 4.0487+0.0020 SET PLUG GAGE Half Angle: ?0 ...
Allowances for Class 2G2G threads in column 3 also apply to American National Standard Stub Acme threads ASME/ANSI B 1.8-1988. American National Standard General Purpose Acme Single-Start Screw Threads ? Pitch Diameter Tolerances (ASME/ANSI B1.5-B 1.5-1988) Class of Thread Class of Thread ...
The limits and tolerances in this Standard relate to single-start ACME screw threads and may be used, if considered suitable, for multiple-start ACME screw threads. The latter screw threads are used to provide relatively fast traversing motion when necessary. The three classes-of-fit (2G, 3G,...
0.500"-20 Stub Acme-2G ... indicates that the thread has a ½" major diameter, 20 threads per inch, class 2G, right hand, single thread, Standard Stub Acme thread. This Designation stays the same with Left Handed Threads except you add LH behind the description, for example: 0.500"-...
1826 ACME SCREW THREADS Pitch Diameter Allowances and Tolerances: Allowances on the pitch diameter of Gen- eral Purpose Acme threads are given in Table 4. Pitch diameter tolerances are given in Table 5. The ratios of the pitch diameter tolerances of Classes 2G, 3G, and 4G, General ...
Thread Plug Gauge: ACME and STUB ACME Gauge dimensions for Acme threads are as per ASME B1.5 and Stub Acme as per ANSI/ASME B1.8
Unified Minature Screw Threads B1.10M NPT Pipe Threads, General Purpose B1.20.1 NPTF, PTF-SAE Short Dryseal Pipe Threads B1.20.3 Gaging for Dryseal pipe Threads B1.20.5 ANPT Pipe Threads, Taper Aeronautical National Form Symbol ANPT Design and Inspection Standard ...
X.XXXX-TPI-NG-STUB-ACME-EXTERNAL for screw threads or X.XXXX-TPI-NG-STUB-ACME-INTERNAL for nut threads. Where “X.XXXX” is the nominal major diameter given to four decimal places, TPI are the threads per inch, and “NG” is the class (2G, 3G, or 4G) of fit (2 is the loose...
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