Gage Tip of the Month

April 2012

If an MRP gage wobbles or if the wear pads do not sit flush on the surface of a part, it could be an indication that the gage rails are slightly bent. To level the MRP, set the gage on the part and loosen the knobs. Then, turn the rails until both MRP blocks and […]

Gage Tip of the Month

March 2012

You can check both pitch diameter and taper on a rotary shouldered connection with the same gage. After using a PD-8000-RSC gage to inspect PD, zero the gage on the part. Then, just like using a taper gage, move one inch down the thread and inspect taper. Before moving to the next inspection, be sure […]

Gage Tip of the Month

February 2012

When comparing a Functional Diameter measurement to a Pitch Diameter measurement, the difference between the two readings should not exceed 40% of the allowable ANSI Pitch Diameter tolerance. If greater than 40%, inspect further by measuring lead and/or viewing a cast of the thread form on an optical comparator.

Newsletter

January 2012 Newsletter: Thread Diameter Overview

January 2012 Newsletter- Thread Diameter Overview gage-report-test 2012 Want to get the Gage Report in your e-mail? Click here. External Functional Roll Gage External Functional Roll Gage Measuring Functional Size MRP-1000-on-USS-Buttress-on-back-ground- MRP-1000 measuring Crest Diameter and Ovality on 2 3/8″ Tubing Step-5 PD-8000-RSC Measuring the Pitch Diameter of a Rotary Shouldered Connection Back to the […]

Gage Tip of the Month

December 2011

When using an MRP to inspect a coupling’s Pitch Diameter, mark the location of the MRP on the face of the 1st machined part, and record the gage reading. Leave this 1st machined part nearby to verify between each additional machined coupling that the gage is still set properly.