When sending your smooth rings out for calibration, it is important to ensure that each is packaged properly. However, it is also equally as important to ensure proper precautions are taken before packaging your smooth rings for shipment.
Below we have listed a few items to check off your list before sending you smooth rings out for calibration.
STEP 1: VISUAL INSPECTION
The first step is to visually inspect each smooth ring to ensure that each is intact. Oftentimes, smooth rings show up at a calibration lab with broken parts and get noted as an “as found” condition on a calibration report.
STEP 2: CHECK PITCH DIAMETER
One of the most critical steps before sending a smooth ring out for calibration is creating a list of each rings respective pitch diameter. By creating this list, you can then have your calibration provider advise you on if they have the appropriate setting plugs to suit them. If a calibration provider does not have plugs to accommodate the smooth rings pitch diameters, then the rings will be sent back without calibration.
STEP 3: ENSURE MEASURING TECHNIQUE
Before sending your smooth rings out for calibration, it’s important to ensure what measuring technique the calibration provider uses. Currently there are a number of calibration companies that promote measuring equipment and machines for calibration of smooth rings. These machines are not always the best option for calibration. U.S. standards for are quite clear on recommending sooth rings be calibrated by using gages that are designed for calibration purpose. By using a gage to calibrate a smooth ring, the calibration process can be deemed functional and linear pitch and pitch diameter size can be determined.
STEP 4: VERIFY MEASUREMENT TYPE
Another important step is verifying the type of measurements a calibration lab is going to use during smooth ring calibration. If your calibration provider is going to use direct measurements to qualify your smooth rings, then it is important to find out how they will measure and compensate for variations in pitch, form and roundness at functional setting size.
STEP 5: PROPER PACKAGING PROCEDURES
Once you’ve sorted out the nitty-gritty details, the rest of it is up to good packaging to ensure your smooth rings arrive at your calibration lab without damage. Smooth rings can get damaged during shipment due to movement; therefore, protective packaging is needed. It is vital to ensure that all surfaces of a smooth ring are protected before putting it into a box with other rings and instruments. Notably, they should all be on their flat faces in a layer with packaging between each layer in the box.