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PRODUCT CODE: 157-102

Optical Parallel # 157-102

Thickness: 12.12mm

Micrometer Size: 0-25mm

Price: $150 $129
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Product Description

157-102 Mitutoyo Optical Parallel: 12.12mm

The Mitutoyo 157-102 optical parallel has the following specifications:

  • Thickness: 12.12mm
  • Range of Micrometer to be Checked: 0-25mm
  • Diameter: 30mm

Features:

  • Designed to inspect parallelism and flatness of measuring faces of micrometers
  • Optical parallels are offered as individual or as sets.  Each set consists for 4 different thickness optical parallels. 
  • Supplied in fitted wooden case.

Technical Data

  • Flatness: 0.1um / .000004″
  • Parallelism: 0.2um / .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 1um (0.32um x 3 = 0.96um).
  • Fringe on the anvil side must not be more than one.

Mitutoyo Individual Optical Parallels and Optical Parallel Sets:

0-25mm Range:

  • 157-101 Optical Parallel: 12.00mm
  • 157-102 Optical Parallel: 12.12mm
  • 157-103 Optical Parallel: 12.25mm
  • 157-104 Optical Parallel: 12.37mm
  • 157-903 4-Piece Optical Parallel Set: 12.00mm, 12.12mm, 12.25mm, 12.37mm

25-50mm Range:

  • 157-904 4-Piece Optical Parallel Set: 25.00mm, 25.12mm, 25.25mm, 25.37mm

0-1″ Range:

  • 157-109 Optical Parallel: .5000″
  • 157-110 Optical Parallel: .5062″
  • 157-111 Optical Parallel: .5125″
  • 157-112 Optical Parallel: .5187″
  • 157-901 4-Piece Optical Parallel Set: .5000″, .5062″, .5125″, .5187″

1-2″ Range:

  • 157-113 Optical Parallel: 1.0000″
  • 157-114 Optical Parallel: 1.0062″
  • 157-115 Optical Parallel: 1.0125″
  • 157-116 Optical Parallel: 1.0187″
  • 157-902 4-Piece Optical Parallel Set: 1.0000″, 1.0062″, 1.0125″, 1.0187″

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