Optical Parallels

Series 157
Features
  • Designed to inspect parallelism and flatness of measuring faces of micromters.
  • Each set consists of 4 thicknesses.
  • Supplied in fitted wooden case.

Technical Data

Flatness: 0.1µm/.000004”
Parallelism: 0.2µm/.000008”
Diameter: 30mm/1.18”
Parallelism Check between Measuring Faces by Means of Interference Fringe Produced by an Optical Parallel
The parallelism between the measuring faces can be
determined as follows; place the optical parallel to the anvil
and observe the number of interference fringes produced
on the spindle side under the measuring force of the
micrometers.
The parallelism is about 1ìm (0.32ìm x 3 = 0.96ìm).
Fringe on the anvil side must not be more than one.


Parts Break Down


 

InchMetricSet
Order NoImageRangeThickness of parallels
157-109-0-1in0.5 in
157-110-0-1in0.5062 in
157-111-0-1in0.5125 in
157-112-0-1in0.5187 in
157-113157-113.jpg1-2in1 in
157-114157-114.jpg1-2in1.0062 in
157-115157-115.jpg1-2in1.0125 in
157-116157-116.jpg1-2in1.0187 in
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