Product Announcement from Mahr Federal Inc.


Wire Insulation Thickness Gages 57B-Image

Using the basic design of the Model 57B-13 (Model 57B-13M - Metric) Gage, the lower contact is PT-103, 1.10mm/ .0432 diameter rod, mounted horizontally. The upper radiused contact is a chisel contact, in line with the rod. By slipping tubular parts onto the lower contact, the gage can measure the thickness of the wall of the tube. A 10 gram auxiliary weight (WT-3) on the Indicator provides a total dead-load weight of 25 grams. (Replacement lower rod: PS-43)

  • Ideal for checking wall thickness of wire insulation and other small-diameter tubular parts.
  • The basic design of the Model 57B-13 (Model 57B-13M - Metric) Gage; the lower contact has a 1.10 mm/.043" diameter rod, mounted horizontally. The upper radiused contact is a chisel contact, in line with the rod.
  • A 10 gram auxiliary weight on the indicator provides a total dead-load weight of 25 grams.

Measuring Compressible Materials

Compressible materials such as paper, plastics, rubber or fabrics must be measured under controlled conditions. Many materials have measurement standards specified by A.S.T.M., U.L., or other industry standards organizations. Measurement standards specify dead load weight, upper and lower contact configurations, and Indicator resolution.

Series 57B Gages are easily modified to meet most of these industry standards. Mahr Federal has on file designs for the measurement of paper, latex foam rubber, sponge rubber, vulcanized rubber, asbestos tape and cloth, sheet and roll felt, and many other materials. When inquiring, specify A.S.T.M. Specification Number, if possible.

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