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Chapter 6

Chapter 6. Measuring. Objectives. Perform measurements using tools in the chapter Have a working understanding of the metric and English systems of measurement. Vernier Caliper. Movable scale runs parallel to fixed scale Can measure inside and outside diameter

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Chapter 6

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  1. Chapter 6 Measuring

  2. Objectives • Perform measurements using tools in the chapter • Have a working understanding of the metric and English systems of measurement

  3. Vernier Caliper • Movable scale runs parallel to fixed scale • Can measure inside and outside diameter • Most will measure 0 to 7 inches in thousandths • Can measure depth

  4. Vernier Caliper

  5. Reading Vernier Caliper • Main scale is divided into inches • Each inch is divided into tenths (0.100") • Area between tenth measurement is divided into four segments, each .025"

  6. Reading Vernier Caliper

  7. Micrometers • Precision measuring • Consistent and accurate measurements • Adjusts to compensate for wear

  8. Micrometers

  9. Reading a Micrometer • Metric or standard • Each rotation of thimble is equal to .025" • Four rotations will equal .100" • Each line on the thimble represents .001" • Some will measure to .0001"

  10. Inside Micrometer • Measures cylinder bores and main or rod bearing bores • Extension rods to make them fit different size bores

  11. Inside Micrometer

  12. Telescoping Gauge • Transfer gauge • Different sizes to measure all sizes of bores • Ends of tool telescope is out to make contact with bore • After lock is set • Tool removed from bore and measured with micrometer

  13. Telescoping Gauge

  14. Dial Indicators • Measure movements such as back lash and end play • Also used to measure wear, taper, and out-of-round

  15. Dial Indicators

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